Semaglutide’s Surprisingly Unexamined Effects
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Semaglutide’s Surprisingly Big Research Gap
GLP-1 receptor agonists like Ozempic, Wegovy, and other semaglutide drugs. are fast becoming a health industry standard go-to tool in the weight loss toolbox. When it comes to recommending that patients lose weight, “Have you considered Ozempic?” is the common refrain.
Sometimes, this may be a mere case of kicking the can down the road with regard to some other treatment that it can be argued (sometimes even truthfully) would go better after some weight loss:
How weight bias in health care can harm patients with obesity: Research
…which we also covered in fewer words in the second-to-last item here:
But GLP-1 agonists work, right?
Yes, albeit there’s a litany of caveats, top of which are usually:
- there are often adverse gastrointestinal side effects
- if you stop taking them, weight regain generally ensues promptly
For more details on these and more, see:
…but now there’s another thing that’s come to light:
The dark side of semaglutide’s weight loss
In academia, “dark” is often used to describe “stuff we don’t have much (or in some cases, any) direct empirical evidence of, but for reasons of surrounding things, we know it’s there”.
Well-known examples include “dark matter” in physics and the Dark Ages in (European) history.
In the case of semaglutide and weight loss, a review by a team of researchers (Drs. Sandra Christenen, Katie Robinson, Sara Thomas, and Dominique Williams) has discovered how little research has been done into a certain aspect of GLP-1 agonist’s weight loss effects, namely…
Dietary changes!
There’s been a lot of popular talk about “people taking semaglutide eat less”, but it’s mostly anecdotal and/or presumed based on parts of the mechanism of action (increasing insulin production, reducing glucagon secretions, modulating dietary cravings).
Where studies have looked at dietary changes, it’s almost exclusively been a matter of looking at caloric intake (which has been found to be a 16–39% reduction), and observations-in-passing that patients reported reduction in cravings for fatty and sweet foods.
This reduction in caloric intake, by the way, is not significantly different to the reduction brought about by counselling alone (head-to-head studies have been done; these are also discussed in the research review).
However! It gets worse. Very few studies of good quality have been done, even fewer (two studies) actually had a registered dietitian nutritionist on the team, and only one of them used the “gold standard” of nutritional research, the 24-hour dietary recall test. Which, in case you’re curious, you can read about what that is here:
Dietary Assessment Methods: What Is A 24-Hour Recall?
Of the four studies that actually looked at the macros (unlike most studies), they found that on average, protein intake decreased by 17.1%. Which is a big deal!
It’s an especially big deal, because while protein’s obviously important for everyone, it’s especially important for anyone trying to lose weight, because muscle mass is a major factor in metabolic base rate—which in turn is much important for fat loss/maintenance than exercise, when it comes to how many calories we burn by simply existing.
A reasonable hypothesis, therefore, is that one of the numerous reasons people who quit GLP-1 agonists immediately put fat back on, is because they probably lost muscle mass in amongst their weight loss, meaning that their metabolic base rate will have decreased, meaning that they end up more disposed to put on fat than before.
And, that’s just a hypothesis and it’s a hypothesis based on very few studies, so it’s not something to necessarily take as any kind of definitive proof of anything, but it to say—as the researchers of this review do loudly say—more research needs to be done into this, because this has been a major gap in research so far!
Any other bad news?
While we’re talking research gaps, guess how many studies looked into micronutrient intake changes in people taking GLP-1 agonists?
If you guessed zero, you guessed correctly.
You can find the paper itself here:
What’s the main take-away here?
On a broad, scoping level: we need more research!
On a “what this means for individuals who want to lose weight” level: maybe we should be more wary of this still relatively new (less than 10 years old) “wonder drug”. And for most of those 10 years it’s only been for diabetics, with weight loss use really being in just the past few years (2021 onwards).
In other words: not necessarily any need to panic, but caution is probably not a bad idea, and natural weight loss methods remain very reasonable options for most people.
See also: How To Lose Weight (Healthily!)
Take care!
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Cauliflower vs Carrot – Which is Healthier?
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Our Verdict
When comparing cauliflower to carrot, we picked the cauliflower.
Why?
In terms of macros, cauliflower has nearly 2x the protein while carrot has nearly 2x the carbs and slightly more fiber; we’re calling it a tie in this category.
When it comes to vitamins, cauliflower has more of vitamins B2, B5, B6, B9, C, K, and choline, while carrot has more of vitamins A, B1, B3, and E. Thus, a 7:4 win for cauliflower here.
In the category of minerals, cauliflower has more iron, magnesium, manganese, phosphorus, selenium, and zinc, while carrot has more calcium, copper, and potassium. So, a 6:3 win for cauliflower here.
In short, for overall nutritional density, adding up the sections makes for a clear win for cauliflower, but of course, enjoy either or (preferably) both; diversity is good!
Want to learn more?
You might like to read:
What’s Your Plant Diversity Score?
Take care!
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Spoon-Fed – by Dr. Tim Spector
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Dr. Spector looks at widespread beliefs about food, and where those often scientifically disproven beliefs come from. Hint, there’s usually some manner of “follow the money”.
From calorie-counting to cholesterol content, from fish to bottled water, to why of all the people who self-report having an allergy, only around half turn out to actually have one when tested, Dr. Spector sets the record straight.
The style is as very down-to-earth and not at all self-aggrandizing; the author acknowledges his own mistakes and limitations along the way. In terms of pushing any particular agenda, his only agenda is clear: inform the public about bad science, so that we demand better science going forwards. Along the way, he gives us lots of information that can inform our personal health choices based on better science than indiscriminate headlines wildly (and sometimes intentionally) misinterpreting results.
Read this book, and you may find yourself clicking through to read the studies for yourself, next time you see a bold headline.
Bottom line: this book looks at a lot of what’s wrong with what a lot of people believe about healthy eating. Regular 10almonds readers might not find a lot that’s new here, but it could be a great gift for a would-be health-conscious friend or relative
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The Humor Habit – by Paul Osincup
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Ask not for whom the bell tolls… It could be tolling for anyone. Don’t worry about it.It’s probably fine.
More seriously (heh), laughter is good for healthy lifespan, also called healthspan. It eases stress and anxiety, gives our brains neurochemicals they need to function well, and is very pro-social too, which in turn has knock-on positive effects for our own mental health as well as those around us.
This book is a guide to cultivating that humor, finding the funny side in difficult times, and bringing a light-hearted silliness to moments where it helps.
The title suggests it’s about habit-building (and it is!) but it’s also about knowing where to look in your daily life for humorous potential and how to find it, and how to bring that into being in the moment.
The style is that of an instruction manual with a healthy dose of pop-science; first and foremost this is a practical guide, not a several-hundred page exhortation on “find things funny!”, but rather a “hey, psst, here are many sneaky insider tricks for finding the funny“.
Bottom line: this book is not only a very enjoyable read, but also very much the gift that keeps on giving, so treat yourself!
Click here to check out The Humor Habit, and strength your funny-bones!
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The Path To Revenue – by Theresa Marcroft
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So many books about start-ups skip right over the elephant in the room: survivorship bias. Not so for Marcroft! This book contains the most comprehensive and unapologetic treatment of it we’ve seen.
Less “here’s what Steve Jobs did right and here’s what Chocolate-Teapots-For-Dogs-R-Us did wrong; don’t mess up that badly and you’ll be fine”… and more realism. Marcroft gives us a many-angled critical analytic approach. In it, she examines why many things can seem similar in both content and presentation… but can cause growth or failure (and how and why), based on more than anecdotes and luck.
The book is information-dense (taking a marketing-centric approach) and/but well-presented in a very readable format.
If we can find any criticism of the book, it’s less about what’s in it and more about what’s not in it. This can never be a “your start-up bible!” book because it’s not comprehensive. It doesn’t cover assembling your team, for example. Nor does it give a lot of attention to management, preferring to focus on strategy.
But no single book can be all things, and we highly recommend this one—the marketing advice alone is more than worth the cost of the book!
Take Your First Step Along The Path To Revenue By Checking It Out On Amazon!
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‘Sleep tourism’ promises the trip of your dreams. Beyond the hype plus 5 tips for a holiday at home
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Imagine arriving at your hotel after a long flight and being greeted by your own personal sleep butler. They present you with a pillow menu and invite you to a sleep meditation session later that day.
You unpack in a room kitted with an AI-powered smart bed, blackout shades, blue light-blocking glasses and weighted blankets.
Holidays are traditionally for activities or sightseeing – eating Parisian pastry under the Eiffel tower, ice skating at New York City’s Rockefeller Centre, lying by the pool in Bali or sipping limoncello in Sicily. But “sleep tourism” offers vacations for the sole purpose of getting good sleep.
The emerging trend extends out of the global wellness tourism industry – reportedly worth more than US$800 billion globally (A$1.2 trillion) and expected to boom.
Luxurious sleep retreats and sleep suites at hotels are popping up all over the world for tourists to get some much-needed rest, relaxation and recovery. But do you really need to leave home for some shuteye?
Not getting enough
The rise of sleep tourism may be a sign of just how chronically sleep deprived we all are.
In Australia more than one-third of adults are not achieving the recommended 7–9 hours of sleep per night, and the estimated cost of this inadequate sleep is A$45 billion each year.
Inadequate sleep is linked to long-term health problems including poor mental health, heart disease, metabolic disease and deaths from any cause.
Can a fancy hotel give you a better sleep?
Many of the sleep services available in the sleep tourism industry aim to optimise the bedroom for sleep. This is a core component of sleep hygiene – a series of healthy sleep practices that facilitate good sleep including sleeping in a comfortable bedroom with a good mattress and pillow, sleeping in a quiet environment and relaxing before bed.
The more people follow sleep hygiene practices, the better their sleep quality and quantity.
When we are staying in a hotel we are also likely away from any stressors we encounter in everyday life (such as work pressure or caring responsibilities). And we’re away from potential nighttime disruptions to sleep we might experience at home (the construction work next door, restless pets, unsettled children). So regardless of the sleep features hotels offer, it is likely we will experience improved sleep when we are away.
What the science says about catching up on sleep
In the short-term, we can catch up on sleep. This can happen, for example, after a short night of sleep when our brain accumulates “sleep pressure”. This term describes how strong the biological drive for sleep is. More sleep pressure makes it easier to sleep the next night and to sleep for longer.
But while a longer sleep the next night can relieve the sleep pressure, it does not reverse the effects of the short sleep on our brain and body. Every night’s sleep is important for our body to recover and for our brain to process the events of that day. Spending a holiday “catching up” on sleep could help you feel more rested, but it is not a substitute for prioritising regular healthy sleep at home.
All good things, including holidays, must come to an end. Unfortunately the perks of sleep tourism may end too.
Our bodies do not like variability in the time of day that we sleep. The most common example of this is called “social jet lag”, where weekday sleep (getting up early to get to work or school) is vastly different to weekend sleep (late nights and sleep ins). This can result in a sleepy, grouchy start to the week on Monday. Sleep tourism may be similar, if you do not come back home with the intention to prioritise sleep.
So we should be mindful that as well as sleeping well on holiday, it is important to optimise conditions at home to get consistent, adequate sleep every night.
5 tips for having a sleep holiday at home
An AI-powered mattress and a sleep butler at home might be the dream. But these features are not the only way we can optimise our sleep environment and give ourselves the best chance to get a good night’s sleep. Here are five ideas to start the night right:
1. avoid bright artificial light in the evening (such as bright overhead lights, phones, laptops)
2. make your bed as comfortable as possible with fresh pillows and a supportive mattress
3. use black-out window coverings and maintain a cool room temperature for the ideal sleeping environment
4. establish an evening wind-down routine, such as a warm shower and reading a book before bed or even a “sleepy girl mocktail”
5. use consistency as the key to a good sleep routine. Aim for a similar bedtime and wake time – even on weekends.
Charlotte Gupta, Senior postdoctoral research fellow, Appleton Institute, HealthWise research group, CQUniversity Australia and Dean J. Miller, Adjunct Research Fellow, Appleton Institute of Behavioural Science, CQUniversity Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Resveratrol & Healthy Aging
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Resveratrol & Healthy Aging
Resveratrol is the compound found in red grapes, and thus in red wine, that have resulted in red wine being sometimes touted as a heart-healthy drink.
However, at the levels contained in red wine, you’d need to drink 100–1000 glasses of wine per day (depending on the wine) to get the dose of resveratrol that were associated with heart health benefits in mouse studies.
(if you are not a mouse, you might need to drink even more than that)
Further reading: can we drink to good health?
Resveratrol supplementation
Happily, resveratrol supplements exist. But what does resveratrol do?
It lowers blood pressure:
Effect of resveratrol on blood pressure: a meta-analysis of randomized controlled trials
It improves blood lipid levels:
It improves insulin sensitivity:
It has neuroprotective effects too:
Resveratrol promotes clearance of Alzheimer’s disease amyloid-beta peptides
Is it safe?
For most people, it is generally recognized as safe. However, if you are on blood-thinners or otherwise have a bleeding disorder, you might want to skip it:
Antiplatelet activity of synthetic and natural resveratrol in red wine
You also might want to check with your pharmacist/doctor, if you’re on blood pressure meds, anxiety meds, or immunosuppressants, as it can increase the amount of these drugs that will then stay in your system:
Resveratrol modulates drug- and carcinogen-metabolizing enzymes in a healthy volunteer study
And as ever, of course, if unsure just check with your pharmacist/doctor, to be on the safe side.
Where to get it?
We don’t sell it, but here’s an example product on Amazon for your convenience
Enjoy!
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