
The Not-So-Sweet Science Of Sugar Addiction
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One Lump Mechanism Of Addiction Or Two?

In Tuesday’s newsletter, we asked you to what extent, if any, you believe sugar is addictive; we got the above-depicted, below-described, set of responses:
- About 47% said “Sugar is chemically addictive, comparable to alcohol”
- About 34% said “Sugar is chemically addictive, comparable to cocaine”
- About 11% said “Sugar is not addictive; that’s just excuse-finding hyperbole”
- About 9% said “Sugar is a behavioral addiction, comparable to video gaming”
So what does the science say?
Sugar is not addictive; that’s just excuse-finding hyperbole: True or False?
False, by broad scientific consensus. As ever, the devil’s in the details definitions, but while there is still discussion about how best to categorize the addiction, the scientific consensus as a whole is generally: sugar is addictive.
That doesn’t mean scientists* are a hive mind, and so there will be some who disagree, but most papers these days are looking into the “hows” and “whys” and “whats” of sugar addiction, not the “whether”.
*who are also, let us remember, a diverse group including chemists, neurobiologists, psychologists, social psychologists, and others, often collaborating in multidisciplinary teams, each with their own focus of research.
Here’s what the Center of Alcohol and Substance Use Studies has to say, for example:
Sugar Addiction: More Serious Than You Think
Sugar is a chemical addiction, comparable to alcohol: True or False?
True, broadly, with caveats—for this one, the crux lies in “comparable to”, because the neurology of the addiction is similar, even if many aspects of it chemically are not.
In both cases, sugar triggers the release of dopamine while also (albeit for different chemical reasons) having a “downer” effect (sugar triggers the release of opioids as well as dopamine).
Notably, the sociology and psychology of alcohol and sugar addictions are also similar (both addictions are common throughout different socioeconomic strata as a coping mechanism seeking an escape from emotional pain).
See for example in the Journal of Psychoactive Drugs:
On the other hand, withdrawal symptoms from heavy long-term alcohol abuse can kill, while withdrawal symptoms from sugar are very much milder. So there’s also room to argue that they’re not comparable on those grounds.
Sugar is a chemical addiction, comparable to cocaine: True or False?
False, broadly. There are overlaps! For example, sugar drives impulsivity to seek more of the substance, and leads to changes in neurobiological brain function which alter emotional states and subsequent behaviours:
The impact of sugar consumption on stress driven, emotional and addictive behaviors
However!
Cocaine triggers a release of dopamine (as does sugar), but cocaine also acts directly on our brain’s ability to remove dopamine, serotonin, and norepinephrine:
The Neurobiology of Cocaine Addiction
…meaning that in terms of comparability, they (to use a metaphor now, not meaning this literally) both give you a warm feeling, but sugar does it by turning up the heating a bit whereas cocaine does it by locking the doors and burning down the house. That’s quite a difference!
Sugar is a behavioral addiction, comparable to video gaming: True or False?
True, with the caveat that this a “yes and” situation.
There are behavioral aspects of sugar addiction that can reasonably be compared to those of video gaming, e.g. compulsion loops, always the promise of more (without limiting factors such as overdosing), anxiety when the addictive element is not accessible for some reason, reduction of dopaminergic sensitivity leading to a craving for more, etc. Note that the last is mentioning a chemical but the mechanism itself is still behavioral, not chemical per se.
So, yes, it’s a behavioral addiction [and also arguably chemical in the manners we’ve described earlier in this article].
For science for this, we refer you back to:
The impact of sugar consumption on stress driven, emotional and addictive behaviors
Want more?
You might want to check out:
Beating Food Addictions: When It’s More Than “Just” Cravings
Take care!
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10almonds Subcribers Take The Wheel!
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❓ Q&A With 10almonds Subscribers!
Q: What kind of salt is best for neti pots?
A: Non-iodised salt is usually recommended, but really, any human-safe salt is fine. By this we mean for example:
- Sodium chloride (like most kitchen salts),
- Potassium chloride (as found in “reduced sodium” kitchen salts), or
- Magnesium sulfate (also known as epsom salts).
Q: You talked about spearmint as reducing testosterone levels, what about ginseng for increasing them?
A: Hormones are complicated and often it’s not a simple matter of higher or lower levels! It can also be a matter of…
- how your body converts one thing into another
- how your body responds (or not) to something according to how the relevant hormone’s receptors are doing
- …and whether there’s anything else blocking those receptors.
All this to say: spearmint categorically is an anti-androgen, but the mechanism of action remains uncertain.
Panax ginseng, meanwhile, is one of the most well-established mysteries in herbal medicine.
Paradoxically, it seems to improve both male and female hormonal regulation, despite being more commonly associated with the former.
- It doesn’t necessarily increase or decrease testosterone or estrogen levels (but it can, even if indirectly)
- It does improve sexual function
- …and alleviates symptoms associated with conditions as varied as:
- Late-onset hypogonadism (common for men during the andropause)
- Benign prostate hyperplasia (again common for men during the andropause)
- …and also counteracts unwanted side-effects of finasteride. Finasteride is often taken by men as a hair loss remedy or, less often but critically, in the case of an enlarged prostate.
But it also…
- Alleviates symptoms of PCOS (polycystic ovary syndrome, which effects around 20% of women)
- May even be an effective treatment for PCOS (rat model only so far)
- It also may improve female reproductive fertility more generally (the studies are down to fruit flies now though)
Bottom line: Panax ginseng is popularly taken to improve natural hormone function, a task at which it appears to excel.
Scientists are still working out exactly how it does the many things it appears to do.
Progress has been made, and it clearly is science rather than witchcraft, but there are still far more unanswered questions than resolved ones!
Q: I like that the quizzes (I’ve done two so far) give immediate results , with no “give us your email to get your results”. Thanks!
A: You’re welcome! That’s one of the factors that influences what things we include here! Our mission statement is “to make health and productivity crazy simple”, and the unwritten part of that is making sure to save your time and energy wherever we reasonably can!
Q: Do you know if adrafanil is as good as modafinil? It seems to be a lot cheaper for the same result?
A: Adrafinil is the pro-drug of modafinil. What this means is that if you take it, your own liver will use it to make modafinil inside you. So the end result is chemically the same drug.
As to whether it’s as good, it depends what you need. It’s worth noting that anything that taxes liver function can be harmful if you take too much, and/or your liver is already strained for some reason.
If in doubt, consult a doctor! And if it’s something that’s accessible to you, a recent lipids test (a kind of blood test that checks your liver health) is always a good thing to have.
Q: Would love to see your take on polyphasic sleep!
A: Watch this space
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How To Reduce Cortisol Levels Naturally
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Cortisol is a hormone that is important for us (we’d struggle to get up in the morning without it, for a start), but in this modern world we often have too much of it, too much of the time. How can we rebalance it? Dr. Mindy Pelz explains:
Lifestyle adjustments
A note in advance: the video makes frequent reference to things that “spike cortisol levels”, but this is probably intended as a stand-in for “raise cortisol levels”. Because, unlike for some things, in the case of cortisol, spikes aren’t usually a problem (indeed, they can be beneficial, and this is a large part of why cold showers and ice baths can be healthy; it’s an artificially induced cortisol spike, and this hormesis has an assortment of healthy benefits, each related to improving our body’s ability to switch quickly between states as appropriate); rather, it’s chronically high cortisol levels that are the problem. However, the video discusses things that can increase resting cortisol levels, so where she says “spike”, we suggest to read “raise”.
Dr. Pelz, an advocate of intermittent fasting, mentions that done incorrectly and/or for the same way for too long, fasting can raise cortisol levels and thus sabotage our efforts—so varying our fasting style can help avoid that. For example, 16:8, 5:2, longer fasts less frequently, etc.
On the topic of food, she also warns us of the dangers of ultra-processed food, harmful oils, and foods with added sugar, as these can all raise cortisol levels.
When it comes to exercise, she notes that intense exercise without adequate recovery can raise cortisol levels, so again it’s good to mix up one’s methods, vary one’s exercise routine, and allow each well-worked muscle-group adequate rest afterwards.
Dr. Pelz also talks mindset, and has her own interesting way of framing the well-established science that chronic stress means chronically high stress hormone (cortisol) levels; Dr. Pelz prefers to see it as negative vs positive thoughts, environments, etc.
Any discussion of cortisol management would be incomplete without discussing the importance of good quality sleep. Dr. Pelz doesn’t mention this at all in her video, but it’s important to bear in mind too!
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Lower Your Cortisol! (Here’s Why & How)
Take care!
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No, beetroot isn’t vegetable Viagra. But here’s what else it can do
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Beetroot has been in the news for all the wrong reasons. Supply issues in recent months have seen a shortage of tinned beetroot on Australian supermarket shelves. At one point, a tin was reportedly selling on eBay for more than A$65.
But as supplies increase, we turn our attention to beetroot’s apparent health benefits.
Is beetroot really vegetable Viagra, as UK TV doctor Michael Mosley suggests? What about beetroot’s other apparent health benefits – from reducing your blood pressure to improving your daily workout? Here’s what the science says.
What’s so special about beetroot?
Beetroot – alongside foods such as berries, nuts and leafy greens – is a “superfood”. It contains above-average levels per gram of certain vitamins and minerals.
Beetroot is particularly rich in vitamin B and C, minerals, fibre and antioxidants.
Most cooking methods don’t significantly alter its antioxidant levels. Pressure cooking does, however, lower levels of carotenoid (a type of antioxidant) compared to raw beetroot.
Processing into capsules, powders, chips or juice may affect beetroot’s ability to act as an antioxidant. However, this can vary between products, including between different brands of beetroot juice.
Is beetroot really vegetable Viagra?
The Romans are said to have used beetroot and its juice as an aphrodisiac.
But there’s limited scientific evidence to say beetroot improves your sex life. This does not mean it doesn’t. Rather, the vast number of scientific studies looking at the effect of beetroot have not measured libido or other aspects of sexual health.
How could it work?
When we eat beetroot, chemical reactions involving bacteria and enzymes transform the nitrate in beetroot into nitrite, then to nitric oxide. Nitric oxide helps dilate (widen) blood vessels, potentially improving circulation.
The richest sources of dietary nitric oxide that have been tested in clinical studies are beetroot, rocket and spinach.
Nitric oxide is also thought to support testosterone in its role in controlling blood flow before and during sex in men.
Beetroot’s ability to improve blood flow can benefit the circulatory system of the heart and blood vessels. This may positively impact sexual function, theoretically in men and women.
Therefore, it is reasonable to suggest there could be a modest link between beetroot and preparedness for sex, but don’t expect it to transform your sex life.
What else could it do?
Beetroot has received increasing attention over recent years due to its antioxidant and anti-tumour effect in humans.
Clinical trials have not verified all beetroot’s active ingredients and their effects. However, beetroot may be a potentially helpful treatment for various health issues related to oxidative stress and inflammation, such as cancer and diabetes. The idea is that you can take beetroot supplements or eat extra beetroot alongside your regular medicines (rather than replace them).
There is evidence beetroot juice can help lower systolic blood pressure (the first number in your blood pressure reading) by 2.73-4.81 mmHg (millimetres of mercury, the standard unit of measuring blood pressure) in people with high blood pressure. Some researchers say this reduction is comparable to the effects seen with certain medications and dietary interventions.
Other research finds even people without high blood pressure (but at risk of it) could benefit.
Beetroot may also improve athletic performance. Some studies show small benefits for endurance athletes (who run, swim or cycle long distances). These studies looked at various forms of the food, such as beetroot juice as well as beetroot-based supplements.
How to get more beetroot in your diet
There is scientific evidence to support positive impacts of consuming beetroot in whole, juice and supplement forms. So even if you can’t get hold of tinned beetroot, there are plenty of other ways you can get more beetroot into your diet. You can try:
- raw beetroot – grate raw beetroot and add it to salads or coleslaw, or slice beetroot to use as a crunchy topping for sandwiches or wraps
- cooked beetroot – roast beetroot with olive oil, salt and pepper for a flavour packed side dish. Alternatively, steam beetroot and serve it as a standalone dish or mixed into other dishes
- beetroot juice – make fresh beetroot juice using a juicer. You can combine it with other fruits and vegetables for added flavour. You can also blend raw or cooked beetroot with water and strain to make a juice
- smoothies – add beetroot to your favourite smoothie. It pairs well with fruits such as berries, apples and oranges
- soups – use beetroot in soups for both flavour and colour. Borscht is a classic beetroot soup, but you can also experiment with other recipes
- pickled beetroot – make pickled beetroot at home, or buy it from the supermarket. This can be a tasty addition to salads or sandwiches
- beetroot hummus – blend cooked beetroot into your homemade hummus for a vibrant and nutritious dip. You can also buy beetroot hummus from the supermarket
- grilled beetroot – slice beetroot and grill it for a smoky flavour
- beetroot chips – slice raw beetroot thinly, toss the slices with olive oil and your favourite seasonings, then bake or dehydrate them to make crispy beetroot chips
- cakes and baked goods – add grated beetroot to muffins, cakes, or brownies for a moist and colourful twist.
You can add beetroot to baked goods. Ekaterina Khoroshilova/Shutterstock Are there any downsides?
Compared to the large number of studies on the beneficial effects of beetroot, there is very little evidence of negative side effects.
If you eat large amounts of beetroot, your urine may turn red or purple (called beeturia). But this is generally harmless.
There have been reports in some countries of beetroot-based dietary supplements contaminated with harmful substances, yet we have not seen this reported in Australia.
What’s the take-home message?
Beetroot may give some modest boost to sex for men and women, likely by helping your circulation. But it’s unlikely to transform your sex life or act as vegetable Viagra. We know there are many contributing factors to sexual wellbeing. Diet is only one.
For individually tailored support talk to your GP or an accredited practising dietitian.
Lauren Ball, Professor of Community Health and Wellbeing, The University of Queensland and Emily Burch, Lecturer, Southern Cross University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Prevention Is Better Than Cure
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Preventative healthcare is the theme this week:
New year, new risks
The start of a new year is a great time to update adult vaccinations, including the flu shot, any COVID-19 boosters, and vaccines for pneumonia, shingles, and tetanus—when was your last booster, after all? Vaccination recommendations vary by age and health conditions, so do check what’s appropriate in your case. Key vaccines include the pneumonia vaccine for those 65 and older, the shingles vaccine for adults over 50, and the Tdap vaccine every 10 years to protect against tetanus, diphtheria, and pertussis (whooping cough), especially for new parents and grandparents, to protect infants:
Read in full: Why it’s important to update adult vaccinations for a new year
Related: The Truth About Vaccines
The heart-healthiest swap you can do
Based on a large (n=202,863, of which 160,123 women and 42,740 men) dataset, a higher plant-to-animal protein ratio is associated with significantly lower risks of cardiovascular disease (CVD) and coronary artery disease (CAD), with diets lower in meat (especially if lower in red meat) and instead rich in plant-based proteins like legumes, nuts, and whole grains reducing CVD risk by 19% and coronary artery disease risk by 27%. Which is quite considerable.
Substituting even small amounts of animal protein (especially if it’s red meat) with plant protein further enhances heart health:
Read in full: Higher plant-to-animal protein ratio linked to lower risk for CVD, CAD among U.S. adults
Related: Plant vs Animal Protein: Head to Head
Let’s keep pan-resistant superbugs at bay
Researchers want to warn us about the threat of pan-resistant bacteria, which could render all known antibiotics ineffective, leading to a sharp rise in global infection-related deaths.
To be clear, we don’t have anything pan-resistant yet, but antibiotic-resistant superbugs are getting close, and in the long term, are likely to win the evolutionary arms race if we don’t change things to diverge considerably from our current path. Modeling a hypothetical pan-resistant E. coli strain, researchers predicted U.S. sepsis deaths could increase 18- to 46-fold within five years of its emergence.
The study calls for urgent action, including stricter antibiotic stewardship, new drug development, and monitoring technologies, emphasizing that without intervention, the global impact could be catastrophic:
Read in full: A public health emergency is waiting at the bottom of the antibiotic resistance cliff
Related: Stop Sabotaging Your Immune System ← see also (linked therein), 4 ways antibiotics can kill you
Take care!
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Fitness Freedom for Seniors – by Jackie Jacobs
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Exercise books often assume that either we are training for the Olympics, and most likely also that we are 20 years old. This one doesn’t.
Instead, we see a well-researched, well-organized, clearly-illustrated fitness plan with age in mind. Author Jackie Jacobs offers tips and advice for all levels, and a progressive week-by-week plan of 15-minute sessions. This way, we’re neither overdoing it nor slacking off; it’s a perfect balance.
The exercises are aimed at “all areas”, that is to say, improving cardiovascular fitness, balance, flexibility, and strength. It also gives some supplementary advice with regard to diet and suchlike, but the workouts are the real meat of the book.
Bottom line: if you’d like a robust, science-based exercise regime that’s tailored to seniors, this is the book for you.
Click here to check out Fitness Freedom for Seniors, and get yours!
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Feeding You Lies – by Vani Hari
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When it comes to advertising, we know that companies will often be as misleading as they can get away with. But just how misleading is it?
Vani Hari, of “Food Babe” fame, is here to unravel it all.
The book covers many areas of food and drink advertising and marketing, and gives particular attention to:
- Sodas (with and without sugar), and how deleterious they are to the health—as well as not even helping people lose weight, but actively hindering
- Nutritionally fortified foods, and what we may or may not actually get from them by the time the processing is done
- Organic food, and what that may or may not mean
She also covers a lot of what happens outside of supermarkets, way back in universities and corporate boardrooms. In short, who is crossing whose palms with silver for a seal of approval… And what that means for us as consumers.
A strength of this book that sets it apart from many of its genre, by the way, is that while being deeply critical of certain institutions’ practices, it doesn‘t digress into tinfoil-hat pseudoscientific scaremongering, either. Here at 10almonds we love actual science, so that was good to see too.
Bottom line: is you’d like to know “can they say that and get away with it if it’s not true?” and make decisions based on the actual nutritional value of things, this is a great book for you.
Click here to check out “Feeding You Lies” on Amazon and make your shopping healthier!
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