Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk?
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What’s The Deal With MSG?
There are a lot of popular beliefs about MSG. Is there a grain of truth, or should we take them with a grain of salt? We’ll leap straight into myth-busting:
MSG is high in salt
True (technically) False (practically)
- MSG is a salt (a monosodium salt of L-glutamic acid), but to call it “full of salt” in practical terms is like calling coffee “full of fruit”. (Coffee beans are botanically fruit)
- It does contain sodium, though which is what the S stands for!
- We talked previously about how MSG’s sodium content is much lower than that of (table) salt. Specifically, it’s about one third of that of sodium chloride (e.g. table salt).
MSG triggers gluten sensitivity
False!
Or at least, because this kind of absolute negative is hard to prove in science, what we can say categorically is: it does not contain gluten. We understand that the similar name can cause that confusion. However:
- Gluten is a protein, found in wheat (and thus wheat-based foods).
- Glutamate is an amino acid, found in protein-rich foods.
- If you’re thinking “but proteins are made from amino acids”, yes, they are, but the foundational amino acid of gluten is glutamine, not glutamate. Different bricks → different house!
The body can’t process MSG correctly
False!
The body has glutamate receptors throughout the gut and nervous system.
The body metabolizes glutamate from MSG just the same as from any other food that contains it naturally.
Read: Update on food safety of monosodium l-glutamate (MSG) ← evidence-based safety review
MSG causes “Chinese Restaurant Syndrome”
False!
Racism causes that. It finds its origins in what was originally intended as a satirical joke, that the papers picked up and ran with, giving it that name in the 1960s. As to why it grew and persisted, that has more to do with US politics (the US has been often at odds with China for a long time) and xenophobia (people distrust immigrants, such as those who opened restaurants), including nationalistic rhetoric associating immigrants with diseases.
Read: Xenophobia in America in the Age of Coronavirus and Beyond ← academic paper that gives quite a compact yet comprehensive overview
Research science, meanwhile, has not found any such correlation, in more than 40 years of looking.
PS: we realize this item in the list is very US-centric. Apologies to our non-US subscribers. We know that this belief isn’t so much of a thing outside the US—though it certainly can crop up elsewhere sometimes, too.
Are there any health risks associated with MSG, then?
Well, as noted, it does contain sodium, albeit much less than table salt. So… do go easy on it, all the same.
Aside from that, the LD50 (a way of measuring toxicity) of MSG is 15.8g/kg, so if for example you weigh 150lb (68 kg), don’t eat 2.2lb (a kilogram) of MSG.
There have been some studies on rats (or in one case, fruit flies) that found high doses of MSG could cause heart problems and/or promote obesity. However:
- this has not been observed to be the case in humans
- those doses were really high, ranging from 1g/kg to 8g/kg. So that’d be the equivalent of our 150lb person eating it by the cupful
- it was injected (as a solution) into the rats, not ingested by them
- so don’t let someone inject you with a cup of MSG!
Read: A review of the alleged health hazards of monosodium glutamate
Bottom line on MSG and health:
Enjoy in moderation, but enjoy if you wish! MSG is just the salt form of the amino acid glutamate, which is found naturally in many foods, including shrimp, seaweed, and tomatoes.
Scientists have spent more than 40 years trying to find health risks for MSG, and will probably keep trying (which is as science should be), but for now… Everything has either come up negative, or has been the result of injecting laboratory animals with megadoses.
If you’d like to try it in your cooking as a low-sodium way to bring out the flavor of your dishes, you can order it online. Cheapest in bulk, but try it and see if you like it first!
(I’ll be real with you… I have 5 kg in the pantry myself and use about half a teaspoon a day, cooking for two)
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Mung Beans vs Red Lentils – Which is Healthier?
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Our Verdict
When comparing mung beans to red lentils, we picked the lentils.
Why?
Both are great! But the lentils win on overall nutritional density.
In terms of macros, they have approximately the same carbs and fiber, and are both low glycemic index foods. The deciding factor is that the lentils have slightly more protein—but it’s not a huge difference; both are very good sources of protein.
In the category of vitamins, mung beans have more of vitamins A, E, and K, while red lentils have more of vitamins B1, B2, B3, B5, B6, B9, C, and choline. An easy win for lentils.
When it comes to minerals, again both are great, but mung beans have more calcium and magnesium (hence the green color) while red lentils have more copper, iron, manganese, phosphorus, potassium, selenium, and zinc. Another clear win for lentils.
Polyphenols are also a worthy category to note here; both have plenty, but red lentils have more, especially flavonols, anthocyanidins, proanthocyanidins, and anthocyanins (whence the red color).
In short: enjoy both, because diversity is almost always best. But if you’re picking one, red lentils are the most nutritious of the two.
Want to learn more?
You might like to read:
Sprout Your Seeds, Grains, Beans, Etc
Take care!
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Your Brain on Art – by Susan Magsamen & Ivy Ross
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The notion of art therapy is popularly considered a little wishy-washy. As it turns out, however, there are thousands of studies showing its effectiveness.
Nor is this just a matter of self-expression. As authors Magsamen and Ross explore, different kinds of engagement with art can convey different benefits.
That’s one of the greatest strengths of this book: “this form of engagement with art will give these benefits, according to these studies”
With benefits ranging from reducing stress and anxiety, to overcoming psychological trauma or physical pain, there’s a lot to be said for art!
And because the book covers many kinds of art, if you can’t imagine yourself taking paintbrush to canvas, that’s fine too. We learn of the very specific cognitive benefits of coloring in mandalas (yes, really), of sculpting something terrible in clay, or even just of repainting the kitchen, and more. Each thing has its set of benefits.
The book’s main goal is to encourage the reader to cultivate what the authors call an aesthetic mindset, which involves four key attributes:
- a high level of curiosity
- a love of playful, open-ended exploration
- a keen sensory awareness
- a drive to engage in creative activities
And, that latter? It’s as a maker and/or a beholder. We learn about what we can gain just by engaging with art that someone else made, too.
Bottom line: come for the evidence-based cognitive benefits; stay for the childlike wonder of the universe. If you already love art, or have thought it’s just “not for you”, then this book is for you.
Click here to check out Your Brain On Art, and open up whole new worlds of experience!
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Maca Root’s Benefits For The Mood And The Ability
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Maca Root: What It Does And Doesn’t Do
Maca root, or Lepidium meyenii, gets thought of as a root vegetable, though it’s in fact a cruciferous vegetable and more closely related to cabbage—notwithstanding that it also gets called “Peruvian ginseng”.
- Nutritionally, it’s full of all manner of nutrients (vitamins, minerals, fiber, and a wide array of phytochemicals)
- Medicinally, it’s long enjoyed traditional use against a wide variety of illnesses, including respiratory infections and inflammatory diseases.
It’s also traditionally an aphrodisiac.
Is it really anti-inflammatory?
Probably not… Unless fermented. This hasn’t been studied deeply, but a 2023 study found that non-fermented and fermented maca root extracts had opposite effects in this regard:
However, this was an in vitro study, so we can’t say for sure that the results will carry over to humans.
Is it really an aphrodisiac?
Actually yes, it seems so. Here’s a study in which 45 women with antidepressant-induced sexual dysfunction found it significantly improved both libido and sexual function:
❝In summary, maca root may alleviate antidepressant-induced sexual dysfunction as women age, particularly in the domain of orgasm❞
~ Dr. Christina Dording et al.
Read in full: A Double-Blind Placebo-Controlled Trial of Maca Root as Treatment for Antidepressant-Induced Sexual Dysfunction in Women
As for men, well these mice (not technically men) found it beneficial too:
Effects of combined extracts of Lepidium meyenii and Allium tuberosum Rottl. on [e-word] dysfunction
(pardon the censorship; we’re trying to avoid people’s spam filters)
It did also improve fertility (and, actually in real men this time):
Does Lepidium meyenii (Maca) improve seminal quality?
Oh, to be in the mood
Here’s an interesting study in which 3g/day yielded significant mood improvement in these 175 (human) subjects:
And yes, it was found to be “well-tolerated” which is scientist-speak for “this appears to be completely safe, but we don’t want to commit ourselves to an absolutist statement and we can’t prove a negative”.
Oh, to have the energy
As it turns out, maca root does also offer benefits in this regard too:
(that’s not an added ingredient; it’s just a relevant chemical that the root naturally contains)
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon 😎
Enjoy!
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Driving under the influence of marijuana: An explainer and research roundup
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Update 1: On May 16, 2024, the U.S. Department of Justice sent a proposed rule to the Federal Register to downgrade marijuana from a Schedule I to a Schedule III drug. This is the first step in a lengthy approval process that starts with a 60-day comment period.
Update 2: Two recent research studies were added to the “Studies on marijuana and driving” section of this piece on July 18, 2024.
As marijuana use continues to rise and state-level marijuana legalization sweeps the U.S., researchers and policymakers are grappling with a growing public safety concern: marijuana-impaired driving.
As of April 2023, 38 U.S. states had legalized medical marijuana and 23 had legalized its recreational use, according to the National Conference of State Legislatures. Recreational or medical marijuana measures are on the ballot in seven states this year.
The issue of marijuana-impaired driving has not been an easy one to tackle because, unlike alcohol, which has well-established thresholds of impairment, the metrics for marijuana’s effects on driving remain rather elusive.
“We don’t have that kind of deep knowledge right now and it’s not because of lack of trying,” says Dr. Guohua Li, professor of epidemiology and the founding director of the Center for Injury Science and Prevention at Columbia University.
“Marijuana is very different from alcohol in important ways,” says Li, who has published several studies on marijuana and driving. “And one of them is that the effect of marijuana on cognitive functions and behaviors is much more unpredictable than alcohol. In general, alcohol is a depressant drug. But marijuana could act on the central nervous system as a depressant, a stimulant, and a hallucinogenic substance.”
Efforts to create a breathalyzer to measure the level of THC, the main psychoactive compound found in the marijuana plant, have largely failed, because “the THC molecule is much bigger than ethanol and its behavior after ingestion is very different from alcohol,” Li says.
Currently, the two most common methods used to measure THC concentration to identify impaired drivers are blood and saliva tests, although there’s ongoing debate about their reliability.
Marijuana, a term interchangeably used with cannabis, is the most commonly used federally illegal drug in the U.S.: 48.2 million people, or about 18% of Americans reported using it at least once in 2019, according to the latest available data from the Centers for Disease Control and Prevention. Worldwide, 2.5% of the population consumes marijuana, according to the World Health Organization.
Marijuana is legal in several countries, including Canada, where it was legalized in 2018. Despite state laws legalizing cannabis, it remains illegal at the federal level in the U.S.
As states grapple with the contentious issue of marijuana legalization, the debate is not just about public health, potential tax revenues and economic interests. At the heart of the discussion is also the U.S. criminal justice system.
Marijuana is shown to have medicinal qualities and, compared with substances like alcohol, tobacco, and opioids, it has relatively milder health risks. However, it’s not risk-free, a large body of research has shown.
Marijuana consumption can lead to immediate effects such as impaired muscle coordination and paranoia, as well as longer-term effects on mental health and cognitive functions — and addiction. As its use becomes more widespread, researchers are trying to better understand the potential hazards of marijuana, particularly for younger users whose brains are in critical stages of development.
Marijuana and driving
The use of marijuana among drivers, passengers and pedestrians has increased steadily over the past two decades, Li says.
Compared with the year 2000, the proportion of U.S. drivers on the road who are under the influence of marijuana has increased by several folds, between five to 10 times, based on toxicology testing of people who died in car crashes, Li says.
A 2022 report from the National Transportation Safety Board finds alcohol and cannabis are the two most commonly detected drugs among drivers arrested for impaired driving and fatally injured drivers. Most drivers who tested positive for cannabis also tested positive for another potentially impairing drug.
“Although cannabis and many other drugs have been shown to impair driving performance and are associated with increased crash risk, there is evidence that, relative to alcohol, awareness about the potential dangers of driving after using other drugs is lower,” according to the report.
Indeed, many U.S. adults perceive daily marijuana use or exposure to its smoke safer than tobacco, even though research finds otherwise.
Several studies have demonstrated marijuana’s impact on driving.
Marijuana use can reduce the drivers’ ability to pay attention, particularly when they are performing multiple tasks, research finds. It also slows reaction time and can impair coordination.
“The combination is that you potentially have people who are noticing hazards later, braking slower and potentially not even noticing hazards because of their inability to focus on competing things on the road,” says Dr. Daniel Myran, an assistant professor at the Department of Family Medicine and health services researcher at the University of Ottawa.
In a study published in September in JAMA Network Open, Myran and colleagues find that from 2010 to 2021 the rate of cannabis-involved traffic injuries that led to emergency department visits in Ontario, Canada, increased by 475%, from 0.18 per 1,000 traffic injury emergency department visits in 2010 to 1.01 visits in 2021.
To be sure, cannabis-involved traffic injuries made up a small fraction of all traffic injury-related visits to hospital emergency departments. Out of 947,604 traffic injury emergency department visits, 426 had documented cannabis involvement.
Myran cautions the increase shouldn’t be solely attributed to marijuana legalization. It captures changing societal attitudes toward marijuana and acceptance of cannabis use over time in the lead-up to legalization. In addition, it may reflect an increasing awareness among health care providers about cannabis-impaired driving, and they may be more likely to ask about cannabis use and document it in medical charts, he says.
“When you look at the 475% increase in cannabis involvement in traffic injuries, rather than saying legalizing cannabis has caused the roads to be unsafe and is a public health disaster, it’s that cannabis use appears to be growing as a risk for road traffic injuries and that there seem to be more cannabis impaired drivers on the road,” Myran says. “Legalization may have accelerated this trend. Faced with this increase, we need to think about what are public health measures and different policy interventions to reduce harms from cannabis-impaired driving.”
Setting a legal limit for marijuana-impaired driving
Setting a legal limit for marijuana-impaired driving has not been easy. Countries like Canada and some U.S. states have agreed upon a certain level of THC in blood, usually between 1 to 5 nanograms per milliliter. Still, some studies have found those limits to be weak indicators of cannabis-impaired driving.
When Canada legalized recreational marijuana in 2018, it also passed a law that made it illegal to drive with blood THC levels of more than 2 nanograms. The penalties are more severe for blood THC levels above 5 nanograms. The blood test is done at the police station for people who are pulled over and are deemed to be drug impaired.
In the U.S., five states — Ohio, Illinois, Montana, Washington and Nevada — have “per se laws,” which set a specific amount of THC in the driver’s blood as evidence of impaired driving, according to the National Conference of State Legislatures. That limit ranges between 2 and 5 nanograms of THC per milliliter of blood.
Colorado, meanwhile, has a “permissible inference law,” which states that it’s permissible to assume the driver was under the influence if their blood THC level is 5 nanograms per milliliter or higher, according to NCSL.
Twelve states, most which have legalized some form of marijuana of use, have zero tolerance laws for any amount of certain drugs, including THC, in the body.
The remaining states have “driving under the influence of drugs” laws. Among those states, Alabama and Michigan, have oral fluid roadside testing program to screen drivers for marijuana and other drugs, according to NCSL.
In May this year, the U.S. Department of Transportation published a final rule that allows employers to use saliva testing for commercially licensed drivers, including truck drivers. The rule, which went into effect in June, sets the THC limit in saliva at 4 nanograms.
Saliva tests can detect THC for 8 to 24 hours after use, but the tests are not perfect and can results in false positives, leading some scientists to argue against using them in randomly-selected drivers.
In a 2021 report, the U.S. National Institute of Justice, the research and development arm of the Department of Justice, concluded that THC levels in bodily fluids, including blood and saliva “were not reliable indicators of marijuana intoxication.”
Studies on marijuana and driving
Over the past two decades, many studies have shown marijuana use can impair driving. However, discussions about what’s the best way to measure the level of THC in blood or saliva are ongoing. Below, we highlight and summarize several recent studies that address the issue. The studies are listed in order of publication date. We also include a list of related studies and resources to inform your audiences.
State Driving Under the Influence of Drugs Laws
Alexandra N. Origenes, Sarah A. White, Emma E. McGinty and Jon S. Vernick. Journal of Law, Medicine & Ethics, July 2024.Summary: As of January 2023, 33 states and D.C. had a driving under the influence of drugs law for at least one drug other than cannabis. Of those, 29 states and D.C. had a law specifically for driving under the influence of cannabis, in addition to a law for driving under the influence of other drugs. Four states had a driving under the influence of drug laws, excluding cannabis. Meanwhile, 17 states had no law for driving under the influence of drugs, including cannabis. “The 17 states lacking a DUID law that names specific drugs should consider enacting such a law. These states already have expressed their concern — through legislation — with drug-impaired driving. However, failure to name specific drugs is likely to make the laws more difficult to enforce. These laws may force courts and/or law enforcement to rely on potentially subjective indicators of impairment,” the authors write.
Associations between Adolescent Marijuana Use, Driving After Marijuana Use and Recreational Retail Sale in Colorado, USA
Lucas M. Neuroth, et al. Substance Use & Misuse, October 2023.Summary: Researchers use data from four waves (2013, 2015, 2017 and 2019) of the Healthy Kids Colorado Survey, including 47,518 students 15 and older who indicated that they drove. They find 20.3% of students said that they had used marijuana in the past month and 10.5% said they had driven under the influence of marijuana. They find that the availability of recreational marijuana in stores was associated with an increased prevalence of using marijuana one to two times in the past month and driving under the influence of marijuana at least once. “Over the study period, one in ten high school age drivers engaged in [driving after marijuana use], which is concerning given the high risk of motor vehicle-related injury and death arising from impaired driving among adolescents,” the authors write.
Are Blood and Oral Fluid Δ9-tetrahydrocannabinol (THC) and Metabolite Concentrations Related to Impairment? A Meta-Regression Analysis
Danielle McCartney, et al. Neuroscience & Biobehavioral Reviews, March 2022.Summary: Commonly used THC measurements may not be strong indicators of driving impairment. While there is a relationship between certain biomarkers like blood THC concentrations and impaired driving, this correlation is often weak. The study underscores the need for more nuanced and comprehensive research on this topic, especially as cannabis usage becomes more widespread and legally accepted.
The Effects of Cannabis and Alcohol on Driving Performance and Driver Behaviour: A Systematic Review and Meta-Analysis
Sarah M. Simmons, Jeff K. Caird, Frances Sterzer and Mark Asbridge. Addiction, January 2022.Summary: This meta-analysis of experimental driving studies, including driving simulations, confirms that cannabis impairs driving performance, contrary to some beliefs that it might enhance driving abilities. Cannabis affects lateral control and speed — typically increasing lane excursions while reducing speed. The combination of alcohol and marijuana appears worse than either alone, challenging the idea that they cancel each other out.
Cannabis Legalization and Detection of Tetrahydrocannabinol in Injured Drivers
Jeffrey R. Brubacher, et al. The New England Journal of Medicine, January 2022.Summary: Following the legalization of recreational marijuana in Canada, there was a notable increase in injured drivers testing positive for THC, especially among those 50 years of age or older. This rise in cannabis-related driving incidents occurred even with new traffic laws aiming to deter cannabis-impaired driving. This uptick began before legalization became official, possibly due to perceptions that cannabis use was soon-to-be legal or illegal but not enforced. The data suggests that while legalization has broad societal impacts, more comprehensive strategies are needed to deter driving under the influence of cannabis and raise public awareness about its risks.
Cannabis and Driving
Godfrey D. Pearlson, Michael C. Stevens and Deepak Cyril D’Souza. Frontiers in Psychiatry, September 2021.Summary: Cannabis-impaired driving is a growing public health concern, and studies show that such drivers are more likely to be involved in car crashes, according to this review paper. Drivers are less affected by cannabis than they are by alcohol or cocaine, but the problem is expected to escalate with increasing cannabis legalization and use. Unlike alcohol, THC’s properties make it challenging to determine direct impairment levels from testing results. Current roadside tests lack precision in detecting genuine cannabis-impaired drivers, leading to potential wrongful convictions. Moreover, there is a pressing need for research on the combined effects of alcohol and cannabis on driving, as well as the impact of emerging popular forms of cannabis, like concentrates and edibles. The authors recommend public awareness campaigns about the dangers of driving under the influence of cannabis, similar to those against drunk driving, to address misconceptions. Policymakers should prioritize science-based decisions and encourage further research in this domain.
Demographic And Policy-Based Differences in Behaviors And Attitudes Towards Driving After Marijuana Use: An Analysis of the 2013–2017 Traffic Safety Culture Index
Marco H. Benedetti, et al. BMC Research Notes, June 2021.Summary: The study, based on a U.S. survey, finds younger, low-income, low-education and male participants were more tolerant of driving after marijuana consumption. Notably, those in states that legalized medical marijuana reported driving after use more frequently, aligning with studies indicating a higher prevalence of THC detection in drivers from these states. Overall, while the majority perceive driving after marijuana use as dangerous, not all research agrees on its impairment effects. Existing studies highlight that marijuana impacts motor skills and executive functions, yet its direct correlation with crash risk remains debated, given the variations in individual tolerance and how long THC remains in the system.
Driving Under the Influence of Cannabis: A Framework for Future Policy
Robert M. Chow, et al.Anesthesia & Analgesia, June 2019.Summary: The study presents a conceptual framework focusing on four main domains: legalization, driving under the influence of cannabis, driver impairment, and motor vehicle accidents. With the growing legalization of cannabis, there’s an anticipated rise in cannabis-impaired driving cases. The authors group marijuana users into infrequent users who show significant impairment with increased THC blood levels, chronic users with minimal impairment despite high THC levels, and those with consistent psychomotor deficits. Current challenges lie in the lack of standardized regulation for drivers influenced by cannabis, primarily because of state-to-state variability and the absence of a federal statutory limit for blood THC levels. European nations, however, have established thresholds for blood THC levels, ranging from 0.5 to 50.0 micrograms per liter depending on whether blood or blood serum are tested. The authors suggest the combined use of alcohol and THC blood tests with a psychomotor evaluation by a trained professional to determine impairment levels. The paper stresses the importance of creating a structured policy framework, given the rising acceptance and use of marijuana in society.
Additional research
Cannabis-Involved Traffic Injury Emergency Department Visits After Cannabis Legalization and Commercialization
Daniel T. Myran, et al. JAMA Network Open, September 2023.Driving Performance and Cannabis Users’ Perception of Safety: A Randomized Clinical Trial
Thomas D. Marcotte, et al. JAMA Psychiatry, January 2022.Medicinal Cannabis and Driving: The Intersection of Health and Road Safety Policy
Daniel Perkins, et al. International Journal of Drug Policy, November 2021.Prevalence of Marijuana Use Among Trauma Patients Before and After Legalization of Medical Marijuana: The Arizona Experience
Michael Levine, et al. Substance Abuse, July 2021.Self-Reported Driving After Marijuana Use in Association With Medical And Recreational Marijuana Policies
Marco H. Benedetti, et al. International Journal of Drug Policy, June 2021.Cannabis and Driving Ability
Eric L. Sevigny. Current Opinion in Psychology, April 2021.The Failings of per se Limits to Detect Cannabis-Induced Driving Impairment: Results from a Simulated Driving Study
Thomas R. Arkell, et al. Traffic Injury Prevention, February 2021.Risky Driving Behaviors of Drivers Who Use Alcohol and Cannabis
Tara Kelley-Baker, et al. Transportation Research Record, January 2021.Direct and Indirect Effects of Marijuana Use on the Risk of Fatal 2-Vehicle Crash Initiation
Stanford Chihuri and Guohua Li. Injury Epidemiology, September 2020Cannabis-Impaired Driving: Evidence and the Role of Toxicology Testing
Edward C. Wood and Robert L. Dupont. Cannabis in Medicine, July 2020.Association of Recreational Cannabis Laws in Colorado and Washington State With Changes in Traffic Fatalities, 2005-2017
Julian Santaella-Tenorio, et al. JAMA Internal Medicine, June 2020.Marijuana Decriminalization, Medical Marijuana Laws, and Fatal Traffic Crashes in US Cities, 2010–2017
Amanda Cook, Gregory Leung and Rhet A. Smith. American Journal of Public Health, February 2020.Cannabis Use in Older Drivers in Colorado: The LongROAD Study
Carolyn G. DiGuiseppi, et al. Accident Analysis & Prevention, November 2019.Crash Fatality Rates After Recreational Marijuana Legalization in Washington and Colorado
Jayson D. Aydelotte, et al. American Journal of Public Health, August 2017.Marijuana-Impaired Driving: A Report to Congress
National Highway Traffic Safety Administration, July 2017Interaction of Marijuana And Alcohol on Fatal Motor Vehicle Crash Risk: A Case–Control Study
Stanford Chihuri, Guohua Li and Qixuan Chen. Injury Epidemiology, March 2017.US Traffic Fatalities, 1985–2014, and Their Relationship to Medical Marijuana Laws
Julian Santaella-Tenorio, et al. American Journal of Public Health, February 2017.Delays in DUI Blood Testing: Impact on Cannabis DUI Assessments
Ed Wood, Ashley Brooks-Russell and Phillip Drum. Traffic Injury Prevention, June 2015.Establishing Legal Limits for Driving Under the Influence of Marijuana
Kristin Wong, Joanne E. Brady and Guohua Li. Injury Epidemiology, October 2014.Cannabis Effects on Driving Skills
Rebecca L. Hartman and Marilyn A. Huestis. Clinical Chemistry, March 2014.Acute Cannabis Consumption And Motor Vehicle Collision Risk: Systematic Review of Observational Studies and Meta-Analysis
Mark Asbridge, Jill A. Hayden and Jennifer L. Cartwright. The BMJ, February 2012.Resources for your audiences
The following resources include explainers from federal agencies and national organizations. You’re free to use images and graphics from federal agencies.
- CDC’s main marijuana page.
- CDC’s marijuana data and statistics.
- Marijuana Drug Facts from the National Institute on Drug Abuse.
- Health Effects of Marijuana from the CDC.
- Learn About Marijuana Risks from the Substance Abuse and Mental Health Services Administration.
- Marijuana and Lung Health from the American Lung Association.
- Substance Use Disorder 101 from the U.S. Department of Health & Human Services.
- What You Need To Know About Marijuana Use and Driving from the CDC.
- Does marijuana use affect driving? from the National Institute on Drug Abuse.
- Drug-Impaired Driving from the National Highway Traffic Safety Administration.
This article first appeared on The Journalist’s Resource and is republished here under a Creative Commons license.
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Do we need animal products to be healthy?
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Do we need animal products to be healthy?
We asked you for your (health-related) perspective on plant-based vs anima-based foods, and got the above-pictured spread of answers.
“Some or all of us may need small amounts of animal products” came out on top with more votes than the two more meat-eatery options combined, and the second most popular option was the hard-line “We can all live healthily and happily on just plants”.
Based on these answers, it seems our readership has quite a lot of vegans, vegetarians, and perhaps “flexitarians” who just have a little of animal products here and there.
Perhaps we should have seen this coming; the newsletter is “10almonds”, not “10 rashers of bacon”, after all.
But what does the science say?
We are carnivores and are best eating plenty of meat: True or False?
False. Let’s just rip the band-aid off for this one.
In terms of our anatomy and physiology, we are neither carnivores nor herbivores:
- We have a mid-length digestive tract (unlike carnivores and herbivores who have short and long ones, respectively)
- We have a mouthful of an assortment of teeth; molars and premolars for getting through plants from hard nuts to tough fibrous tubers, and we have incisors for cutting into flesh and (vestigial, but they’re there) canines that really serve us no purpose now but would have been a vicious bite when they were bigger, like some other modern-day primates.
- If we look at our closest living relatives, the other great apes, they are mostly frugivores (fruit-eaters) who supplement their fruity diet with a small quantity of insects and sometimes other small animals—of which they’ll often eat only the fatty organ meat and discard the rest.
And then, there’s the health risks associated with meat. We’ll not linger on this as we’ve talked about it before, but for example:
- Processed Meat Consumption and the Risk of Cancer: A Critical Evaluation of the Constraints of Current Evidence from Epidemiological Studies
- Red Meat Consumption (Heme Iron Intake) and Risk for Diabetes and Comorbidities?
- Health Risks Associated with Meat Consumption: A Review of Epidemiological Studies
- Associations of Processed Meat, Unprocessed Red Meat, Poultry, or Fish Intake With Incident Cardiovascular Disease and All-Cause Mortality
- Meat consumption: Which are the current global risks? A review of recent (2010-2020) evidences
If we avoid processed and/or red meat, that’s good enough: True or False?
True… Ish.
Really this one depends on one’s criteria for “good enough”. The above-linked studies, and plenty more like them, give the following broad picture:
- Red and/or processed meats are unequivocally terrible for the health in general
- Other mammalian meats, such as from pigs, are really not much better
- Poultry, on the other hand, the science is less clear on; the results are mixed, and thus so are the conclusions. The results are often barely statistically significant. In other words, when it comes to poultry, in the matter of health, the general consensus is that you can take it or leave it and will be fine. Some studies have found firmly for or against it, but the consensus is a collective scientific shrug.
- Fish, meanwhile, has almost universally been found to be healthful in moderation. You may have other reasons for wanting to avoid it (ethics, environmentalism, personal taste) but those things are beyond the scope of this article.
Some or all of us may need small amounts of animal products: True or False?
True! With nuances.
Let’s divide this into “some” and “all”. Firstly, some people may have health conditions and/or other mitigating circumstances that make an entirely plant-based diet untenable.
We’re going light on quotations from subscriber comments today because otherwise this article will get a bit long, but here’s a great example that’s worth quoting, from a subscriber who voted for this option:
❝I have a rare genetic disease called hereditary fructose intolerance. It means I lack the enzyme, Aldolase B, to process fructose. Eating fruits and veggies thus gives me severe hypoglycemia. I also have anemia caused by two autoimmune diseases, so I have to eat meat for the iron it supplies. I also supplement with iron pills but the pills alone can’t fix the problem entirely.❞
And, there’s the thing. Popular vegan talking-points are very good at saying “if you have this problem, this will address it; if you have that problem, that will address it”, etc. For every health-related objection to a fully plant-based diet there’s a refutation… Individually.
But actual real-world health doesn’t work like that; co-morbidities are very common, and in some cases, like our subscriber above, one problem undermines the solution to another. Add a third problem and by now you really just have to do what you need to do to survive.
For this reason, even the Vegan Society’s definition of veganism includes the clause “so far as is possible and practicable”.
Now, as for the rest of us “all”.
What if we’re really healthy and are living in optimal circumstances (easy access to a wide variety of choice of food), can we live healthily and happily just on plants?
No—on a technicality.
Vegans famously need to supplement vitamin B12, which is not found in plants. Ironically, much of the B12 in animal products comes from the animals themselves being given supplements, but that’s another matter. However, B12 can also be enjoyed from yeast. Popular options include the use of yeast extract (e.g. Marmite) and/or nutritional yeast in cooking.
Yeast is a single-celled microorganism that’s taxonomically classified as a fungus, even though in many ways it behaves like an animal (which series of words may conjure an amusing image, but we mean, biologically speaking).
However, it’s also not technically a plant, hence the “No—on a technicality”
Bottom line:
By nature, humans are quite versatile generalists when it comes to diet:
- Most of us can live healthily and happily on just plants if we so choose.
- Some people cannot, and will require varying kinds (and quantities) of animal products.
- As for red and/or processed meats, we’re not the boss of you, but from a health perspective, the science is clear: unless you have a circumstance that really necessitates it, just don’t.
- Same goes for pork, which isn’t red and may not be processed, but metabolically it’s associated with the same problems.
- The jury is out on poultry, but it strongly appears to be optional, healthwise, without making much of a difference either way
- Fish is roundly considered healthful in moderation. Enjoy it if you want, don’t if you don’t.
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Increase Your Muscle Mass Boost By 26% (No Extra Effort, No Supplements)
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
You’ve probably seen this technology advertised, but the trick is in how it’s used (which is not how most people use it).
It’s about neuromuscular electrical stimulation (NMES), also called electrical muscle stimulation (EMS); in other words, those squid-like electrode kits that promise “six-pack abs without exercise”, by stimulating the muscles for you—using the exact same tech as for transcutaneous electrical nerve stimulation (TENS), for pain relief.
Do they work for pain relief? Yes, for many people in any case. But that’s beyond the scope of today’s article.
Do they work for building muscles as advertised? No. The limiting factor is that they can’t fully exert the muscles in the same way actual exercise can, because of the limitations to how much electrical current can safely be applied.
However…
The cyborgization of your regular workout
A meta-analysis of 13 studies compared two [meta-]groups of exercisers:
- Group 1 doing conventional resistance training
- Group 2 doing the same resistance training, plus NMES at the same time (specifically: NMES of the same muscles being used in the workout)
The analysis had two output variables: strength and muscle mass
What they found: group 2 enjoyed more than 31% greater strength gains, and 26% greater muscle mass gains, from the same training over the same period of time.
Of course, one of the biggest challenges to strength gain and muscle mass gain is hitting a plateau, so it’s worth noting that when they looked at training periods ranging from 2 weeks to 16 weeks, longer durations yielded better results—it is, it seems, the gift that keeps on giving.
You can find the paper here (which also explains how they analysed data from 13 different studies to get one coherent set of results):
How it works and why it matters
While the paper itself does not go into how it works, a reasonable hypothesis is that it works by “confusing” the muscles—because they are receiving mixed signals (one set from your brain, one set from the electrodes), with fast- and slow-twitch muscle fibers both working at the same time.
Another way to “confuse” the muscles is by High Intensity [Interval] Resistance Training (HIRT)—which is basically High Intensity Interval Training (HIIT), but for resistance training specifically.
See: How To Do HIIT (Without Wrecking Your Body) and HIIT, But Make It HIRT
Now, we want to confuse our muscles, not our readers, so if that’s all too much to juggle at once, just pick one and go with it. But today’s article is about the RT+NEMS combination, so perhaps you’ll pick that.
Why it matters: as we get older, sarcopenia (the loss of muscle mass) becomes more of an issue, and even if we’re not inclined to a career in bodybuilding, we do still need to at least maintain a healthy muscle mass because:
- Strong muscles improve our stability and make us less likely to fall
- Strong muscles force the body to build strong bones to hold them on, which means lower risk of fractures or worse
- Muscle mass itself improves the body’s basal metabolic rate, which means systemic benefits to the whole body (including against metabolic diseases especially)
See also: Resistance Is Useful! (Especially As We Get Older)
Want to try it?
If you don’t already have a NMES/EMS/TENS kit lying around the house, here’s an example product on Amazon—remember to use it simultaneously with your regular resistance training workout, on the same muscles at the same time, to get the benefit we talked about! 😎
Enjoy!
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