Lycopene’s Benefits For The Gut, Heart, Brain, & More
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What Doesn’t Lycopene Do?
Lycopene is an antioxidant carotenoid famously found in tomatoes; it actually appears in even higher levels in watermelon, though. If you are going to get it from tomato, know that cooking improves the lycopene content rather than removing it (watermelon, on the other hand, can be enjoyed as-is and already has the higher lycopene content).
Antioxidant properties
Let’s reiterate the obvious first, for the sake of being methodical and adding a source. Lycopene is a potent antioxidant with multiple health benefits:
Lycopene: A Potent Antioxidant with Multiple Health Benefits
…and as such, it does all the things you might reasonably expect and antioxidant to do. For example…
Anti-inflammatory properties
In particular, it regulates macrophage activity, reducing inflammation while improving immune response:
Lycopene Regulates Macrophage Immune Response through the Autophagy Pathway Mediated by RIPK1
As can be expected of most antioxidants and anti-inflammatory agents, it also has…
Anticancer properties
Scientific papers tend to be “per cancer type”, so we’re just going to give one example, but there’s pretty much evidence for its utility against most if not all types of cancer. We’re picking prostate cancer though, as it’s one that’s been studied the most in the context of lycopene intake—in this study, for example, it was found that men who enjoyed at least two servings of lycopene-rich tomato sauce per week were 30% less likely to develop prostate cancer than those who didn’t:
Dietary lycopene intake and risk of prostate cancer defined by ERG protein expression
If you’d like to see something more general, however, then check out:
Potential Use of Tomato Peel, a Rich Source of Lycopene, for Cancer Treatment
It also fights Candida albicans
Ok, this is not (usually) so life-and-death as cancer, but reducing our C. albicans content (specifically: in our gut) has a lot of knock-on effects for other aspects of our health, so this isn’t one to overlook:
The title does not make this clear, but yes: this does mean it has an antifungal effect. We mention this because often cellular apoptosis is good for an overall organism, but in this case, it simply kills the Candida.
It’s good for the heart
A lot of studies focus just on triglyceride markers (which lycopene improves), but more tellingly, here’s a 10-year observational study in which diets rich in lycopene were associated to a 17–26% lower risk of heart disease:
Relationship of lycopene intake and consumption of tomato products to incident CVD
…and a 39% overall reduced mortality in, well, we’ll let the study title tell it:
…which means also:
It’s good for the brain
As a general rule of thumb, what’s good for the heart is good for the brain (because the brain needs healthy blood flow to stay healthy, and is especially vulnerable when it doesn’t get that), and in this case that rule of thumb is also borne out by the post hoc evidence, specifically yielding a 31% decreased incidence of stroke:
Dietary and circulating lycopene and stroke risk: a meta-analysis of prospective studies
Is it safe?
As a common food product, it is considered very safe.
If you drink nothing but tomato juice all day for a long time, your skin will take on a reddish hue, which will go away if you stop getting all your daily water intake in tomato juice.
In all likelihood, even if you went to extremes, you would get sick from the excess of vitamin A (generally present in the same foods) sooner than you’d get sick from the excess of lycopene.
Want to try some?
We don’t sell it, and also we recommend simply enjoying tomatoes, watermelons, etc, but if you do want a supplement, here’s an example product on Amazon
Enjoy!
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Food and exercise can treat depression as well as a psychologist, our study found. And it’s cheaper
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Around 3.2 million Australians live with depression.
At the same time, few Australians meet recommended dietary or physical activity guidelines. What has one got to do with the other?
Our world-first trial, published this week, shows improving diet and doing more physical activity can be as effective as therapy with a psychologist for treating low-grade depression.
Previous studies (including our own) have found “lifestyle” therapies are effective for depression. But they have never been directly compared with psychological therapies – until now.
Amid a nation-wide shortage of mental health professionals, our research points to a potential solution. As we found lifestyle counselling was as effective as psychological therapy, our findings suggest dietitians and exercise physiologists may one day play a role in managing depression.
Alexander Raths/shutterstock What did our study measure?
During the prolonged COVID lockdowns, Victorians’ distress levels were high and widespread. Face-to-face mental health services were limited.
Our trial targeted people living in Victoria with elevated distress, meaning at least mild depression but not necessarily a diagnosed mental disorder. Typical symptoms included feeling down, hopeless, irritable or tearful.
We partnered with our local mental health service to recruit 182 adults and provided group-based sessions on Zoom. All participants took part in up to six sessions over eight weeks, facilitated by health professionals.
Half were randomly assigned to participate in a program co-facilitated by an accredited practising dietitian and an exercise physiologist. That group – called the lifestyle program – developed nutrition and movement goals:
Lifestyle therapy aims to improve diet. Jonathan Borba/Pexels - eating a wide variety of foods
- choosing high-fibre plant foods
- including high quality fats
- limiting discretionary foods, such as those high in saturated fats and added sugars
- doing enjoyable physical activity.
The second group took part in psychotherapy sessions convened by two psychologists. The psychotherapy program used cognitive behavioural therapy (CBT), the gold standard for treating depression in groups and when delivered remotely.
In both groups, participants could continue existing treatments (such as taking antidepressant medication). We gave both groups workbooks and hampers. The lifestyle group received a food hamper, while the psychotherapy group received items such as a colouring book, stress ball and head massager.
Lifestyle therapies just as effective
We found similar results in each program.
At the trial’s beginning we gave each participant a score based on their self-reported mental health. We measured them again at the end of the program.
Over eight weeks, those scores showed symptoms of depression reduced for participants in the lifestyle program (42%) and the psychotherapy program (37%). That difference was not statistically or clinically meaningful so we could conclude both treatments were as good as each other.
There were some differences between groups. People in the lifestyle program improved their diet, while those in the psychotherapy program felt they had increased their social support – meaning how connected they felt to other people – compared to at the start of the treatment.
Participants in both programs increased their physical activity. While this was expected for those in the lifestyle program, it was less expected for those in the psychotherapy program. It may be because they knew they were enrolled in a research study about lifestyle and subconsciously changed their activity patterns, or it could be a positive by-product of doing psychotherapy.
People in both groups reported doing more physical activity. fongbeerredhot/Shutterstock There was also not much difference in cost. The lifestyle program was slightly cheaper to deliver: A$482 per participant, versus $503 for psychotherapy. That’s because hourly rates differ between dietitians and exercise physiologists, and psychologists.
What does this mean for mental health workforce shortages?
Demand for mental health services is increasing in Australia, while at the same time the workforce faces worsening nation-wide shortages.
Psychologists, who provide about half of all mental health services, can have long wait times. Our results suggest that, with the appropriate training and guidelines, allied health professionals who specialise in diet and exercise could help address this gap.
Lifestyle therapies can be combined with psychology sessions for multi-disciplinary care. But diet and exercise therapies could prove particularly effective for those on waitlists to see a psychologists, who may be receiving no other professional support while they wait.
Many dietitians and exercise physiologists already have advanced skills and expertise in motivating behaviour change. Most accredited practising dietitians are trained in managing eating disorders or gastrointestinal conditions, which commonly overlap with depression.
There is also a cost argument. It is overall cheaper to train a dietitian ($153,039) than a psychologist ($189,063) – and it takes less time.
Potential barriers
Australians with chronic conditions (such as diabetes) can access subsidised dietitian and exercise physiologist appointments under various Medicare treatment plans. Those with eating disorders can also access subsidised dietitian appointments. But mental health care plans for people with depression do not support subsidised sessions with dietitians or exercise physiologists, despite peak bodies urging them to do so.
Increased training, upskilling and Medicare subsidies would be needed to support dietitians and exercise physiologists to be involved in treating mental health issues.
Our training and clinical guidelines are intended to help clinicians practising lifestyle-based mental health care within their scope of practice (activities a health care provider can undertake).
Future directions
Our trial took place during COVID lockdowns and examined people with at least mild symptoms of depression who did not necessarily have a mental disorder. We are seeking to replicate these findings and are now running a study open to Australians with mental health conditions such as major depression or bipolar disorder.
If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14.
Adrienne O’Neil, Professor, Food & Mood Centre, Deakin University and Sophie Mahoney, Associate Research Fellow, Food and Mood Centre, Deakin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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How To Gain Weight (Healthily!)
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What Do You Have To Gain?
We have previously promised a three-part series about changing one’s weight:
- Losing weight (specifically, losing fat)
- Gaining weight (specifically, gaining muscle)
- Gaining weight (specifically, gaining fat)
There will be, however, no need for a “losing muscle” article, because (even though sometimes a person might have some reason to want to do this), it’s really just a case of “those things we said for gaining muscle? Don’t do those and the muscle will atrophy naturally”.
Here’s our first article: How To Lose Weight (Healthily!)
While some people will want to lose fat, please do be aware that the association between weight loss and good health is not nearly so strong as the weight loss industry would have you believe:
And, while BMI is not a useful measure of health in general, it’s worth noting that over the age of 65, a BMI of 27 (which is in the high end of “overweight”, without being obese) is associated with the lowest all-cause mortality:
BMI and all-cause mortality in older adults: a meta-analysis
Here was our second article: How To Build Muscle (Healthily!)
And now, it’s time for the last part, which yes, is also something that some people want/need to do (healthily!), and want/need help with that.
How to gain fat, healthily
Fat gets a bad press, but when it comes to health, we would die without it.
Even in the case of having excess fat, the fat itself is not generally the problem, so much as comorbid metabolic issues that are often caused by the same things as the excess fat.
So, how to gain fat healthily?
- Obvious but potentially dangerously misleading answer: “in moderation”
- More useful answer: “carefully”
Because, you can “in moderation” put on less than one pound per week for a few years and be in very bad health by the end of it. So how does this “carefully” work any differently to “in moderation”?
The key is in how we store the fat
Not merely where we store it (though that’ll follow from the “how”), but specifically: how we store it.
- When we consume energy from food in excess of our immediate survival needs, our body stores what it can. This is good!
- When our body is receiving energy from food faster than it can physically process it to store it healthily, it will start shoving it wherever it can instead. This is bad!
This is the physiological equivalent of the difference between tidying a room carefully, and cramming everything into one cupboard in 30 seconds just to get it out of sight.
So, you do need to consume calories yes, but you need to consume them in a way your body can take its time about storing them.
We’ve written before about the science of this, so we’ll share some links, but first, here are the practical tips:
- Do not drink your calories. Drinking calories tends to be the equivalent of injecting sugars directly into your veins, in terms of how quickly it gets received.
- See also: How To Unfatty A Fatty Liver ← this is highly relevant, because the same process that results in unhealthy weight gain, results in liver disease, by the same mechanism (the liver gets overwhelmed).
- Eat your greens. No, they won’t provide many calories, but they are critical to your body not being overwhelmed by the arrival of sugars.
- See also: 10 Ways To Balance Blood Sugars ← the other 9 things are also helpful for not putting on fat unhealthily, so using these alongside a calorie-dense diet can result in healthy fat gain as needed
- Get more of your calories from fats than carbs. Fats will not overwhelm your body’s glycemic response in the same way that carbs will.
- Again this is about getting calories while not getting metabolic disease. See also: How To Prevent And Reverse Type Two Diabetes as the advice is the same for that, for the same reason!
- Consider going low-carb, but even if you choose not to, go for carbs with a low glycemic index instead of a high glycemic index.
- For reference, see: Glycemic Index Chart: Glycemic index and glycemic load ratings for 500+ foods
- Need healthy fats in a snack? Enjoy nuts (unless you have an allergy); they will be your best friend in this regard. As an example, a mere 1oz portion of cashew nuts has 157 calories.
- See also: Why You Should Diversify Your Nuts
- Need healthy fats for cooking? Enjoy olive oil, as it has one of the healthiest lipids profiles available, and is a great way to increase the calorific content of many meals.
Lastly…
Be patient, enjoy your food, and stick as best you can to the above considerations. All strength to you.
Take care!
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Carrots vs Parsnips – Which is Healthier?
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Our Verdict
When comparing carrots to parsnips, we picked the parsnips.
Why?
There are arguments for both! But we say parsnips win on overall nutritional density.
In terms of macros, parsnips vary quite a lot from region to another, but broadly speaking, parsnips have more carbs and fiber, and/but the ratios are such that carrots have the lower glycemic index. We’ll call this one a win for carrots.
When it comes to vitamins, carrots have more of vitamins A, B2, B3, B6, and choline, while parsnips have more of vitamins B1, B5, B9, C, E, and K. A small win for parsnips here.
In the category of minerals, carrots are not higher in any minerals, while parsnips are higher in calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. An overwhelming win for parsnips.
While the overall vitamin and mineral content puts parsnips ahead, it’s still worth noting that carrots have highly bioavailable megadoses of vitamin A.
Another thing to note is that the glycemic index recorded for both is when peeled and boiled, whereas both of these root vegetables can be enjoyed raw if you wish, which has a much lower GI.
In short, enjoy either or both, but parsnips are the more nutritionally dense overall.
Want to learn more?
You might like to read:
Glycemic Index vs Glycemic Load vs Insulin Index
Take care!
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Lobster vs Crab – Which is Healthier?
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Our Verdict
When comparing lobster to crab, we picked the crab.
Why?
Generally speaking, most seafood is healthy in moderation (assuming it’s well-prepared, not poisonous, and you don’t have an allergy), and for most people, these two sea creatures are indeed considered a reasonable part of a healthy balanced diet.
In terms of macros, they’re comparable in protein, and technically crab has about 2x the fat, but in both cases it’s next to nothing, so 2x almost nothing is still almost nothing. And, if we break down the lipids profiles, crab has a sufficiently smaller percentage of saturated fat (compared to monounsaturated and polyunsaturated), that crab actually has less saturated fat than lobster. In balance, the category of macros is either a tie or a slight win for crab, depending on your personal priorities.
When it comes to vitamins, crab wins easily with more of vitamins A, B1, B2, B6, B9, B12, and C, in most cases by considerable margins (we’re talking multiples of what lobster has). Lobster, meanwhile, has more of vitamin B3 (tiny margin) and vitamin B5 (pantothenic acid, as in, the vitamin that’s in basically everything edible, and thus almost impossible to be deficient in unless literally starving).
The minerals scene is more balanced; lobster has more calcium, copper, manganese, and selenium, while crab has more iron, magnesium, phosphorus, potassium, and zinc. The margins are comparable from one creature to another, so all in all the 4:5 score means a modest win for crab.
Both of these creatures are good sources of omega-3 fatty acids, but crab is better.
Lobster and crab are both somewhat high in cholesterol, but crab is the relatively lower of the two.
In short: for most people most of the time, both are fine to enjoy in moderation, but if picking one, crab is the healthier by most metrics.
Want to learn more?
You might like to read:
Shrimp vs Caviar – Which is Healthier?
Take care!
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Fall Asleep In 2 Minutes (Doctor Explains)
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Beyond “sleep hygiene”, Dr. Siobhan Deshauer has insights to share:
Rest for your body and mind
First, do still do the basics. That means dimming/filtering lights for an hour before bed, lowering the room temperature a little, ensuring you have nice fresh sheets, not having alcohol or caffeine before bed, and getting out of bed if you’re not asleep within half an hour, to avoid associating being in bed with wakefulness.
Next, the extra tips:
- Progressive relaxation: tense and relax each muscle group from toes to head
- Box breathing: inhale, hold, exhale, and hold for 4 seconds each; helps calm the nervous system (it’s called “box breathing” because of the 4:4:4:4 setup)
- Diaphragmatic breathing: focus on belly breathing, with longer exhalation to activate the parasympathetic nervous system (note that this can, and even ideally should, be done at the same time as the previous)
- Cognitive shuffling: think of words starting with each letter of a chosen word while visualizing them (this is like “counting sheep”, but does the job better—the job in question being preventing your brain from moving to anything more strenuous or stressful)
For more on all of these plus some extra side-along advice, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Non-Sleep Deep Rest: A Neurobiologist’s Take ← a way to get many of the benefits of sleep, while awake
Take care!
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Alzheimer’s may have once spread from person to person, but the risk of that happening today is incredibly low
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An article published this week in the prestigious journal Nature Medicine documents what is believed to be the first evidence that Alzheimer’s disease can be transmitted from person to person.
The finding arose from long-term follow up of patients who received human growth hormone (hGH) that was taken from brain tissue of deceased donors.
Preparations of donated hGH were used in medicine to treat a variety of conditions from 1959 onwards – including in Australia from the mid 60s.
The practice stopped in 1985 when it was discovered around 200 patients worldwide who had received these donations went on to develop Creuztfeldt-Jakob disease (CJD), which causes a rapidly progressive dementia. This is an otherwise extremely rare condition, affecting roughly one person in a million.
What’s CJD got to do with Alzehimer’s?
CJD is caused by prions: infective particles that are neither bacterial or viral, but consist of abnormally folded proteins that can be transmitted from cell to cell.
Other prion diseases include kuru, a dementia seen in New Guinea tribespeople caused by eating human tissue, scrapie (a disease of sheep) and variant CJD or bovine spongiform encephalopathy, otherwise known as mad cow disease. This raised public health concerns over the eating of beef products in the United Kingdom in the 1980s.
Human growth hormone used to come from donated organs
Human growth hormone (hGH) is produced in the brain by the pituitary gland. Treatments were originally prepared from purified human pituitary tissue.
But because the amount of hGH contained in a single gland is extremely small, any single dose given to any one patient could contain material from around 16,000 donated glands.
An average course of hGH treatment lasts around four years, so the chances of receiving contaminated material – even for a very rare condition such as CJD – became quite high for such people.
hGH is now manufactured synthetically in a laboratory, rather than from human tissue. So this particular mode of CJD transmission is no longer a risk.
Human growth hormone is now produced in a lab.
National Cancer Institute/UnsplashWhat are the latest findings about Alzheimer’s disease?
The Nature Medicine paper provides the first evidence that transmission of Alzheimer’s disease can occur via human-to-human transmission.
The authors examined the outcomes of people who received donated hGH until 1985. They found five such recipients had developed early-onset Alzheimer’s disease.
They considered other explanations for the findings but concluded donated hGH was the likely cause.
Given Alzheimer’s disease is a much more common illness than CJD, the authors presume those who received donated hGH before 1985 may be at higher risk of developing Alzheimer’s disease.
Alzheimer’s disease is caused by presence of two abnormally folded proteins: amyloid and tau. There is increasing evidence these proteins spread in the brain in a similar way to prion diseases. So the mode of transmission the authors propose is certainly plausible.
However, given the amyloid protein deposits in the brain at least 20 years before clinical Alzheimer’s disease develops, there is likely to be a considerable time lag before cases that might arise from the receipt of donated hGH become evident.
When was this process used in Australia?
In Australia, donated pituitary material was used from 1967 to 1985 to treat people with short stature and infertility.
More than 2,000 people received such treatment. Four developed CJD, the last case identified in 1991. All four cases were likely linked to a single contaminated batch.
The risks of any other cases of CJD developing now in pituitary material recipients, so long after the occurrence of the last identified case in Australia, are considered to be incredibly small.
Early-onset Alzheimer’s disease (defined as occurring before the age of 65) is uncommon, accounting for around 5% of all cases. Below the age of 50 it’s rare and likely to have a genetic contribution.
Early onset Alzheimer’s means it occurs before age 65.
perfectlab/ShutterstockThe risk is very low – and you can’t ‘catch’ it like a virus
The Nature Medicine paper identified five cases which were diagnosed in people aged 38 to 55. This is more than could be expected by chance, but still very low in comparison to the total number of patients treated worldwide.
Although the long “incubation period” of Alzheimer’s disease may mean more similar cases may be identified in the future, the absolute risk remains very low. The main scientific interest of the article lies in the fact it’s first to demonstrate that Alzheimer’s disease can be transmitted from person to person in a similar way to prion diseases, rather than in any public health risk.
The authors were keen to emphasise, as I will, that Alzheimer’s cannot be contracted via contact with or providing care to people with Alzheimer’s disease.
Steve Macfarlane, Head of Clinical Services, Dementia Support Australia, & Associate Professor of Psychiatry, Monash University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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