Milk Thistle For The Brain, Bones, & More
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“Thistle Do Nicely”
Milk thistle is a popular supplement; it comes from the milk thistle plant (Silybum marianum), commonly just called thistles. There are other kinds of thistle too, but these are one of the most common.
So, what does it do?
Liver health
Milk thistle enjoys popular use to support liver health; the liver is a remarkably self-regenerative organ if given the chance, but sometimes it can use a helping hand.
See for example: How To Undo Liver Damage
As for milk thistle’s beneficence, it is very well established:
- Milk thistle in liver diseases: past, present, future
- Hepatoprotective effect of silymarin
- Silybum Marianum and Chronic Liver Disease: A Marriage of Many Years
Brain health
For this one the science is less well-established, as studies so far have been on non-human animals, or have been in vitro studies.
Nevertheless, the results so far are promising, and the mechanism of action seems to be a combination of reducing oxidative stress and neuroinflammation, as well as suppressing amyloid β-protein (Aβ) fibril formation, in other words, reducing amyloid plaques.
General overview: A Mini Review on the Chemistry and Neuroprotective Effects of Silymarin
All about the plaques, but these are non-human animal studies:
- Mouse model: Silymarin attenuated the amyloid β plaque burden and improved behavioral abnormalities in an Alzheimer’s disease mouse model
- Rat model: Silymarin effect on amyloid-β plaque accumulation and gene expression of APP in an Alzheimer’s disease rat model
Against diabetes
Milk thistle improves insulin sensitivity, and reduces fasting blood sugar levels and HbA1c levels. The research so far is mostly in type 2 diabetes, however (at least, so far as we could find). For example:
Studies we could find for T1D were very far from translatable to human usefulness, for example, “we poisoned these rats with streptozotocin then gave them megadoses of silymarin (10–15 times the dose usually recommended for humans) and found very small benefits to the lenses of their eyes” (source).
Against osteoporosis
In this case, milk thistle’s estrogenic effects may be of merit to those at risk of menopause-induced osteoporosis:
If you’d like a quick primer about such things as what antiosteoclastic activity is, here’s a quick recap:
Which Osteoporosis Medication, If Any, Is Right For You?
Is it safe?
It is “Generally Recognized As Safe”, and even when taken at high doses for long periods, side effects are very rare.
Contraindications include if you’re pregnant, nursing, or allergic.
Potential reasons for caution (but not necessarily contraindication) include if you’re diabetic (its blood-sugar lowering effects will decrease the risk of hyperglycemia while increasing the risk of hypoglycemia), or have a condition that could be exacerbated by its estrogenic effects—including if you are on HRT, because it’s an estrogen receptor agonist in some ways (for example those bone benefits we mentioned before) but an estrogen antagonist in others (for example, in the uterus, if you have one, or in nearby flat muscles, if you don’t).
As ever, speak with your doctor/pharmacist to be sure.
Want to try it?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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Green Paneer Flatbreads
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These are versatile little snacks that can be eaten alone or served as part of a buffet; great for warm summer nights!
You will need
- 1 lb block of paneer (you can also use our plant-based high-protein paneer recipe)
- 7 oz unsweetened yogurt (your choice what kind; plant-based is fine; live cultured is best)
- 1 tomato, thinly sliced
- ½ red onion, thinly sliced
- 2 oz spinach leaves
- 1 tbsp lime juice
- 1 tsp red chili powder
- 4 wholewheat flatbreads
And then the marinade:
- 3 oz spinach
- ½ bulb garlic
- 1 tsp cumin seeds
- 1 tsp coriander seeds
- 1 tsp chili flakes
- ½ tsp MSG or 1 tsp low-sodium salt (MSG being the preferable and healthier option)
- 2 tbsp extra virgin olive oil
- Juice of ½ lime
Method
(we suggest you read everything at least once before doing anything)
1) Blend the marinade ingredients in a blender.
2) Cut the paneer into long cuboid chapes (similar to fish fingers) and put them in a bowl. Pour ⅔ of the marinade over them, and gently mix to coat evenly.
3) Heat a ridged griddle pan, and when hot, add the paneer and cook for 1–2 minutes each side without stirring, jiggling, or doing anything other than turning once per uncooked side.
4) Combine the onion, tomato, spinach leaves, lime choice, and chili powder to make the salad.
5) Add the remaining marinade to the yogurt to make a green dip.
6) Toast your flatbreads under the grill.
5) Assemble, putting the paneer and salad with a spoonful of the dip on the flatbread, and serve:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- High-Protein Plant-Based Paneer
- Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
- Our Top 5 Spices: How Much Is Enough For Benefits?
- Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk?
Take care!
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Nicotine pouches are being marketed to young people on social media. But are they safe, or even legal?
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.
Flavoured nicotine pouches are being promoted to young people on social media platforms such as TikTok and Instagram.
Although some viral videos have been taken down following a series of reports in The Guardian, clips featuring Australian influencers have claimed nicotine pouches are a safe and effective way to quit vaping. A number of the videos have included links to websites selling these products.
With the rapid rise in youth vaping and the subsequent implementation of several reforms to restrict access to vaping products, it’s not entirely surprising the tobacco industry is introducing more products to maintain its future revenue stream.
The major trans-national tobacco companies, including Philip Morris International and British American Tobacco, all manufacture nicotine pouches. British American Tobacco’s brand of nicotine pouches, Velo, is a leading sponsor of the McLaren Formula 1 team.
But what are nicotine pouches, and are they even legal in Australia?
Like snus, but different
Nicotine pouches are available in many countries around the world, and their sales are increasing rapidly, especially among young people.
Nicotine pouches look a bit like small tea bags and are placed between the lip and gum. They’re typically sold in small, colourful tins of about 15 to 20 pouches. While the pouches don’t contain tobacco, they do contain nicotine that is either extracted from tobacco plants or made synthetically. The pouches come in a wide range of strengths.
As well as nicotine, the pouches commonly contain plant fibres (in place of tobacco, plant fibres serve as a filler and give the pouches shape), sweeteners and flavours. Just like for vaping products, there’s a vast array of pouch flavours available including different varieties of fruit, confectionery, spices and drinks.
The range of appealing flavours, as well as the fact they can be used discreetly, may make nicotine pouches particularity attractive to young people.
Vaping has recently been subject to tighter regulation in Australia.
Aleksandr Yu/ShutterstockUsers absorb the nicotine in their mouths and simply replace the pouch when all the nicotine has been absorbed. Tobacco-free nicotine pouches are a relatively recent product, but similar style products that do contain tobacco, known as snus, have been popular in Scandinavian countries, particularly Sweden, for decades.
Snus and nicotine pouches are however different products. And given snus contains tobacco and nicotine pouches don’t, the products are subject to quite different regulations in Australia.
What does the law say?
Pouches that contain tobacco, like snus, have been banned in Australia since 1991, as part of a consumer product ban on all forms of smokeless tobacco products. This means other smokeless tobacco products such as chewing tobacco, snuff, and dissolvable tobacco sticks or tablets, are also banned from sale in Australia.
Tobacco-free nicotine pouches cannot legally be sold by general retailers, like tobacconists and convenience stores, in Australia either. But the reasons for this are more complex.
In Australia, under the Poisons Standard, nicotine is a prescription-only medicine, with two exceptions. Nicotine can be used in tobacco prepared and packed for smoking, such as cigarettes, roll-your-own tobacco, and cigars, as well as in preparations for therapeutic use as a smoking cessation aid, such as nicotine patches, gum, mouth spray and lozenges.
If a nicotine-containing product does not meet either of these two exceptions, it cannot be legally sold by general retailers. No nicotine pouches have currently been approved by the Therapeutic Goods Administration as a therapeutic aid in smoking cessation, so in short they’re not legal to sell in Australia.
However, nicotine pouches can be legally imported for personal use only if users have a prescription from a medical professional who can assess if the product is appropriate for individual use.
We only have anecdotal reports of nicotine pouch use, not hard data, as these products are very new in Australia. But we do know authorities are increasingly seizing these products from retailers. It’s highly unlikely any young people using nicotine pouches are accessing them through legal channels.
Health concerns
Nicotine exposure may induce effects including dizziness, headache, nausea and abdominal cramps, especially among people who don’t normally smoke or vape.
Although we don’t yet have much evidence on the long term health effects of nicotine pouches, we know nicotine is addictive and harmful to health. For example, it can cause problems in the cardiovascular system (such as heart arrhythmia), particularly at high doses. It may also have negative effects on adolescent brain development.
The nicotine contents of some of the nicotine pouches on the market is alarmingly high. Certain brands offer pouches containing more than 10mg of nicotine, which is similar to a cigarette. According to a World Health Organization (WHO) report, pouches deliver enough nicotine to induce and sustain nicotine addiction.
Pouches are also being marketed as a product to use when it’s not possible to vape or smoke, such as on a plane. So instead of helping a person quit they may be used in addition to smoking and vaping. And importantly, there’s no clear evidence pouches are an effective smoking or vaping cessation aid.
A Velo product display at Dubai airport in October 2022. Nicotine pouches are marketed as safe to use on planes.
Becky FreemanFurther, some nicotine pouches, despite being tobacco-free, still contain tobacco-specific nitrosamines. These compounds can damage DNA, and with long term exposure, can cause cancer.
Overall, there’s limited data on the harms of nicotine pouches because they’ve been on the market for only a short time. But the WHO recommends a cautious approach given their similarities to smokeless tobacco products.
For anyone wanting advice and support to quit smoking or vaping, it’s best to talk to your doctor or pharmacist, or access trusted sources such as Quitline or the iCanQuit website.
Becky Freeman, Associate Professor, School of Public Health, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Painkilling Power Of Opioids, Without The Harm?
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When it comes to painkilling medications, they can generally be categorized into two kinds:
- non-opioids (e.g. ibuprofen, paracetamol/acetaminophen, aspirin)
- ones that actually work for something more serious than a headache
That’s an oversimplification, but broadly speaking, when there is serious painkilling to be done, that’s when doctors consider it’s time to break out the opioids.
Nor are all opioids created equal—there’s a noteworthy difference between codeine and morphine, for instance—but the problems of opioids are typically the same (tolerance, addiction, and eventual likelihood of overdose when one tries to take enough to make it work after developing a tolerance), and it becomes simply a matter of degree.
See also: I’ve been given opioids after surgery to take at home. What do I need to know?
So, what’s the new development?
A team of researchers have found that the body can effectively produce its own targetted painkilling peptides, similar in function to benzodiazepines (an opioid drug), but—and which is a big difference—confined to the peripheral nervous system (PNS), meaning that it doesn’t enter the brain.
- The peptides killing the pain before it can reach the brain is obviously good because that means the pain is simply not experienced
- The peptides not having any effect on the brain, however, means that the mechanism of addiction of opioids simply does not apply here
- The peptides not having any effect on the brain also means that the CNS can’t be “put to sleep” by these peptides in the same way it can if a high dose of opioids is taken (this is what typically causes death in opioid overdoses; the heart simply beats too slowly to maintain life)
The hope, therefore, is to now create medications that target the spinal ganglia that produce these peptides, to “switch them on” at will.
Obviously, this won’t happen overnight; there will need to be first a lot of research to find a drug that does that (likely this will involve a lot of trial and error and so many mice/rats), and then multiple rounds of testing to ascertain that the drug is safe and effective for humans, before it can then be rolled out commercially.
But, this is still a big breakthrough; there arguably hasn’t been a breakthrough this big in pain research since various opioid-related breakthroughs in the 70s and 80s.
You can see a pop-science article about it here:
And you can see the previous research (from earlier this year) that this is now building from, about the glial cells in the spinal ganglia, here:
Peripheral gating of mechanosensation by glial diazepam binding inhibitor
But wait, there’s more!
Remember what we said about affecting the PNS without affecting the CNS, to kill the pain without killing the brain?
More researchers are already approaching the same idea to deal with the same problem, but from the angle of gene therapy, and have already had some very promising results with mice:
Structure-guided design of a peripherally restricted chemogenetic system
…which you can read about in pop-science terms (with diagrams!) here:
New gene therapy could alleviate chronic pain, researchers find
While you’re waiting…
In the meantime, approaches that are already available include:
- The 7 Approaches To Pain Management
- Managing Chronic Pain (Realistically!)
- Science-Based Alternative Pain Relief ← when painkillers aren’t helping, these things might!
Take care!
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The Smartest Way To Get To 20% Body Fat (Or 10% For Men)
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.
20% body fat for women, or 10% for men, are suggested in this video as ideal levels of adiposity for most people. While we certainly do have wiggle-room in either direction, going much higher than that can create a metabolic strain, and going much lower than that can cause immune dysfunction, organ damage, brittle bones, and more.
This video assumes you want to get down to those figures. If you want to go up to those figures because you are currently underweight, check out: How To Gain Weight (Healthily!)
Look at the small picture
The main trick, we are told, is to focus on small, incremental changes rather than obsessing over long-term weight loss goals (e.g. 20% body fat for women, 10% for men).
Next, throw out what science shows doesn’t work, such as restrictive or extreme dieting:
- Restrictive dieting doesn’t work as the body will try to save you from starvation by storing extra fat and slowing your metabolism to make your fat reserves last longer
- Extreme dieting doesn’t work because no matter how compelling it is to believe “I’ll just lose it in this extreme way, then maintain my new lower weight”, the vast body of research shows that weight loss in this way will be regained quickly afterwards, and for a significant minority, may even end up putting more back on than was originally lost. In either case, you’ll have put your mind and body through the wringer for no long-term gain.
The recommendation comes in three parts:
- Shift your mindset: detach motivation from timelines and vanity goals; focus instead on lifelong health and sustainable habits.
- Use an analytical approach: apply engineering principles: collect honest data and identify bottlenecks. Track food intake consistently, even during slip-ups, to identify areas for improvement. You remember the whole “it doesn’t count if it’s from someone else’s plate” thing? These days with food trackers, a lot of people fall into “it doesn’t count if I don’t record it”, but a head-in-the-sand approach will not get you where you want to be.
- Tackle bottlenecks incrementally: focus on one small, impactful change at a time (e.g. reducing soda intake). This way, you can build habits gradually to prevent willpower burnout and sustain your progress.
As an example of how this looked for Viva (in the video):
- > 30% body fat stage: she focused on reducing processed foods and portion sizes.
- 29–25% body fat stage: she prioritized nutrient-dense foods and reduced dining out.
- 24–20% body fat stage: she added strength training, improved sleep, and addressed her cravings and energy levels.
In short: look at the small picture; adjust your habits mindfully, keep a track of things, see what needs improvement and improve it, and don’t try to speedrun weight loss; just focus on what you are tangibly doing to keep things heading in the right direction, and you’ll get there 1% at a time.
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Lose Weight, But Healthily ← our own guide, which is also consistent with the advice above, and talks about some specific things to pay attention to that weren’t mentioned in the video
Take care!
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Our blood-brain barrier stops bugs and toxins getting to our brain. Here’s how it works
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Our brain is an extremely complex and delicate organ. Our body fiercely protects it by holding onto things that help it and keeping harmful things out, such as bugs that can cause infection and toxins.
It does that though a protective layer called the blood-brain barrier. Here’s how it works, and what it means for drug design.
The Conversation, Rattiya Thongdumhyu/Shutterstock, Petr Ganaj/Pexels First, let’s look at the circulatory system
Adults have roughly 30 trillion cells in their body. Every cell needs a variety of nutrients and oxygen, and they produce waste, which needs to be taken away.
Our circulatory system provides this service, delivering nutrients and removing waste.
Fenestrated capillaries let nutrients and waste pass through. Vectormine/Shutterstock Where the circulatory system meets your cells, it branches down to tiny tubes called capillaries. These tiny tubes, about one-tenth the width of a human hair, are also made of cells.
But in most capillaries, there are some special features (known as fenestrations) that allow relatively free exchange of nutrients and waste between the blood and the cells of your tissues.
It’s kind of like pizza delivery
One way to think about the way the circulation works is like a pizza delivery person in a big city. On the really big roads (vessels) there are walls and you can’t walk up to the door of the house and pass someone the pizza.
But once you get down to the little suburban streets (capillaries), the design of the streets means you can stop, get off your scooter and walk up to the door to deliver the pizza (nutrients).
We often think of the brain as a spongy mass without much blood in it. In reality, the average brain has about 600 kilometres of blood vessels.
The difference between the capillaries in most of the brain and those elsewhere is that these capillaries are made of specialised cells that are very tightly joined together and limit the free exchange of anything dissolved in your blood. These are sometimes called continuous capillaries.
Continuous capillaries limit the free exchange of anything dissolved in your blood. Vectormine/Shutterstock This is the blood brain barrier. It’s not so much a bag around your brain stopping things from getting in and out but more like walls on all the streets, even the very small ones.
The only way pizza can get in is through special slots and these are just the right shape for the pizza box.
The blood brain barrier is set up so there are specialised transporters (like pizza box slots) for all the required nutrients. So mostly, the only things that can get in are things that there are transporters for or things that look very similar (on a molecular scale).
The analogy does fall down a little bit because the pizza box slot applies to nutrients that dissolve in water. Things that are highly soluble in fat can often bypass the slots in the wall.
Why do we have a blood-brain barrier?
The blood brain barrier is thought to exist for a few reasons.
First, it protects the brain from toxins you might eat (think chemicals that plants make) and viruses that often can infect the rest of your body but usually don’t make it to your brain.
It also provides protection by tightly regulating the movement of nutrients and waste in and out, providing a more stable environment than in the rest of the body.
Lastly, it serves to regulate passage of immune cells, preventing unnecessary inflammation which could damage cells in the brain.
What it means for medicines
One consequence of this tight regulation across the blood brain barrier is that if you want a medicine that gets to the brain, you need to consider how it will get in.
There are a few approaches. Highly fat-soluble molecules can often pass into the brain, so you might design your drug so it is a bit greasy.
The blood-brain barrier stops many medicines getting into the brain. Ron Lach/Pexels Another option is to link your medicine to another molecule that is normally taken up into the brain so it can hitch a ride, or a “pro-drug”, which looks like a molecule that is normally transported.
Using it to our advantage
You can also take advantage of the blood brain barrier.
Opioids used for pain relief often cause constipation. They do this because their target (opioid receptors) are also present in the nervous system of the intestines, where they act to slow movement of the intestinal contents.
Imodium (Loperamide), which is used to treat diarrhoea, is actually an opioid, but it has been specifically designed so it can’t cross the blood brain barrier.
This design means it can act on opioid receptors in the gastrointestinal tract, slowing down the movement of contents, but does not act on brain opioid receptors.
In contrast to Imodium, Ozempic and Victoza (originally designed for type 2 diabetes, but now popular for weight-loss) both have a long fat attached, to improve the length of time they stay in the body.
A consequence of having this long fat attached is that they can cross the blood-brain barrier, where they act to suppress appetite. This is part of the reason they are so effective as weight-loss drugs.
So while the blood brain barrier is important for protecting the brain it presents both a challenge and an opportunity for development of new medicines.
Sebastian Furness, ARC Future Fellow, School of Biomedical Sciences, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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HBD: The Human Being Diet – by Petronella Ravenshear
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We don’t often review diet books, so why did this one catch our attention? The answer lies in its comprehensive nature without being excessively long and complex.
Ravenshear (a nutritionist) brings a focus on metabolic balance, and what will and won’t work for keeping it healthy.
The first part of the book is mostly informational; covering such things as blood sugar balance, gut health, hormones, and circadian rhythm considerations, amongst others.
The second, larger part of the book is mostly instructional; do this and that, don’t do the other, guidelines on quantities and timings, and what things may be different for some people, and what to do about those.
The style is conversational and light, but well-grounded in good science.
Bottom line: if you’d like a “one-stop shop” for giving your diet an overhaul, this book is a fine choice.
Click here to check out the Human Being Diet, and enjoy the best of health!
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