Green Coffee Bean Extract: Coffee Benefits Without The Coffee?
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Coffee is, on balance, very good for the health in moderation. We wrote about it here:
The Bitter Truth About Coffee (or is it?)
Some quick facts before moving on:
- Coffee is the world’s biggest source of antioxidants
- 65% reduced risk of Alzheimer’s for coffee-drinkers
- 67% reduced risk of type 2 diabetes for coffee-drinkers
- 43% reduced risk of liver cancer for coffee-drinkers
- 53% reduced suicide risk for coffee-drinkers
Those are some compelling statistics!
But what about the caffeine content?
Assuming one doesn’t have a caffeine sensitivity, caffeine is also healthy in moderation—but it is easy to accidentally become dependent on it, so it can be good to take a “tolerance break” once in a while, and then reintroduce it with more modest moderation:
Caffeine: Cognitive Enhancer Or Brain-Wrecker?
We also, for that matter, have discussed its impact on the gut:
Coffee & Your Gut ← surprise, it’s a positive impact
What if I don’t like coffee?
We suspect that, having seen the title of this article, you know what the answer’s going to be here:
Green coffee bean extract is the extract from green (i.e. unroasted) coffee beans. It has one or two advantages over drinking coffee:
- For those who do not like drinking coffee, this supplement sidesteps that neatly
- Roasting coffee beans destroys a lot (sometimes almost all; it depends on the temperature and duration) of their chlorogenic acid, a highly beneficial polyphenol; using unroasted (i.e. green) coffee beans avoids that
See: Role of roasting conditions in the level of chlorogenic acid content in coffee beans
All about GCE and CGA
That’s “green coffee extract” and “chlorogenic acid”, respectively, bearing in mind that the latter is found generously in the former.
As to what it does:
❝CGA is an important and biologically active dietary polyphenol, playing several important and therapeutic roles such as antioxidant activity, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antipyretic, neuroprotective, anti-obesity, antiviral, anti-microbial, anti-hypertension, free radicals scavenger and a central nervous system (CNS) stimulator. Furthermore, CGA causes hepatoprotective effects.❞
👆 Those are the things we know for sure that it does. And it may do even more things:
❝In addition, it has been found that CGA could modulate lipid metabolism and glucose in both genetically and healthy metabolic related disorders. It is speculated that CGA can perform crucial roles in lipid and glucose metabolism regulation and thus help to treat many disorders such as hepatic steatosis, cardiovascular disease, diabetes, and obesity as well.❞
Read in full: Chlorogenic acid (CGA): A pharmacological review and call for further research
About lipid metabolism…
- Green coffee extract supplementation significantly reduces serum total cholesterol levels.
- Green coffee extract supplementation significantly reduces serum LDL (“bad” cholesterol) levels.
- Increases in HDL (“good” cholesterol) after green coffee bean extract consumption are significant in green coffee bean extract dosages ≥400mg/day.
About blood glucose and insulin…
- Green coffee extract supplementation significantly improved fasting blood sugar levels
- Green coffee extract supplementation at ≥400 mg/day significantly lowered postprandial insulin levels (that’s good)
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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From Cucumbers To Kindles
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You’ve Got Questions? We’ve Got Answers!
Q: Where do I get cucumber extract?
A: You can buy it from BulkSupplements.com (who, despite their name, start at 100g packs)
Alternatively: you want it as a topical ointment (for skin health) rather than as a dietary supplement (for bone and joint health), you can extract it yourself! No, it’s not “just juice cucumbers”, but it’s also not too tricky.
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Healthy sex drive In Our Fifties
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
Q: What’s a healthy sex drive for someone in their 50s?
A: If you’re happy with it, it’s healthy! If you’re not, it’s not.
This means… If you’re not (happy) and thus it’s not (healthy), you have two main options:
- Find a way to be happier without changing it (i.e., change your perspective)
- Find a way to change your sex drive (presumably: “increase it”, but we don’t like to assume)
There are hormonal and pharmaceutical remedies that may help (whatever your sex), so do speak with your doctor/pharmacist.
Additionally, if a boost to sex drive is what’s wanted, then almost anything that is good for your heart will help.
We wrote about heart health yesterday:
What Matters Most For Your Heart?
That was specifically about dietary considerations, so you might also want to check out:
Take care!
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With all this bird flu around, how safe are eggs, chicken or milk?
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Enzo Palombo, Swinburne University of Technology
Recent outbreaks of bird flu – in US dairy herds, poultry farms in Australia and elsewhere, and isolated cases in humans – have raised the issue of food safety.
So can the virus transfer from infected farm animals to contaminate milk, meat or eggs? How likely is this?
And what do we need to think about to minimise our risk when shopping for or preparing food?
AS Foodstudio/Shutterstock How safe is milk?
Bird flu (or avian influenza) is a bird disease caused by specific types of influenza virus. But the virus can also infect cows. In the US, for instance, to date more than 80 dairy herds in at least nine states have been infected with the H5N1 version of the virus.
Investigations are under way to confirm how this happened. But we do know infected birds can shed the virus in their saliva, nasal secretions and faeces. So bird flu can potentially contaminate animal-derived food products during processing and manufacturing.
Indeed, fragments of bird flu genetic material (RNA) were found in cow’s milk from the dairy herds associated with infected US farmers.
However, the spread of bird flu among cattle, and possibly to humans, is likely to have been caused through contact with contaminated milking equipment, not the milk itself.
The test used to detect the virus in milk – which uses similar PCR technology to lab-based COVID tests – is also highly sensitive. This means it can detect very low levels of the bird flu RNA. But the test does not distinguish between live or inactivated virus, just that the RNA is present. So from this test alone, we cannot tell if the virus found in milk is infectious (and capable of infecting humans).
It’s best to stick with pasteurised milk. Amnixia/Shutterstock Does that mean milk is safe to drink and won’t transmit bird flu? Yes and no.
In Australia, where bird flu has not been reported in dairy cattle, the answer is yes. It is safe to drink milk and milk products made from Australian milk.
In the US, the answer depends on whether the milk is pasteurised. We know pasteurisation is a common and reliable method of destroying concerning microbes, including influenza virus. Like most viruses, influenza virus (including bird flu virus) is inactivated by heat.
Although there is little direct research on whether pasteurisation inactivates H5N1 in milk, we can extrapolate from what we know about heat inactivation of H5N1 in chicken and eggs.
So we can be confident there is no risk of bird flu transmission via pasteurised milk or milk products.
However, it’s another matter for unpasteurised or “raw” US milk or milk products. A recent study showed mice fed raw milk contaminated with bird flu developed signs of illness. So to be on the safe side, it would be advisable to avoid raw milk products.
How about chicken?
Bird flu has caused sporadic outbreaks in wild birds and domestic poultry worldwide, including in Australia. In recent weeks, there have been three reported outbreaks in Victorian poultry farms (two with H7N3 bird flu, one with H7N9). There has been one reported outbreak in Western Australia (H9N2).
The strains of bird flu identified in the Victorian and Western Australia outbreaks can cause human infection, although these are rare and typically result from close contact with infected live birds or contaminated environments.
Therefore, the chance of bird flu transmission in chicken meat is remote.
Nonetheless, it is timely to remind people to handle chicken meat with caution as many dangerous pathogens, such as Salmonella and Campylobacter, can be found on chicken carcasses.
Always handle chicken meat carefully when shopping, transporting it home and storing it in the kitchen. For instance, make sure no meat juices cross-contaminate other items, consider using a cool bag when transporting meat, and refrigerate or freeze the meat within two hours.
Avoid washing your chicken before cooking to prevent the spread of disease-causing microbes around the kitchen.
Finally, cook chicken thoroughly as viruses (including bird flu) cannot survive cooking temperatures.
Are eggs safe?
The recent Australian outbreaks have occurred in egg-laying or mixed poultry flocks, so concerns have been raised about bird flu transmission via contaminated chicken eggs.
Can flu viruses contaminate chicken eggs and potentially spread bird flu? It appears so. A report from 2007 said it was feasible for influenza viruses to enter through the eggshell. This is because influenza virus particles are smaller (100 nanometres) than the pores in eggshells (at least 200 nm).
So viruses could enter eggs and be protected from cleaning procedures designed to remove microbes from the egg surface.
Therefore, like the advice about milk and meat, cooking eggs is best.
The US Food and Drug Administration recommends cooking poultry, eggs and other animal products to the proper temperature and preventing cross-contamination between raw and cooked food.
In a nutshell
If you consume pasteurised milk products and thoroughly cook your chicken and eggs, there is nothing to worry about as bird flu is inactivated by heat.
The real fear is that the virus will evolve into highly pathogenic versions that can be transmitted from human to human.
That scenario is much more frightening than any potential spread though food.
Enzo Palombo, Professor of Microbiology, Swinburne University of Technology
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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10 Ways To Delay Aging
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This is Dr. Colin Rose; he is a Senior Associate of the Royal Society of Medicine. He’s also a main contributor to EduScience, a program funded by the E.U. which is designed to enhance the teaching and learning of science in schools in Europe.
His most recent work has been about aging—and how to delay it. We also reviewed his latest book, here:
Delay Ageing – by Dr. Colin Rose
So, what does he want us to know? The key lies in his compilation of ten ways in which we age on a cellular level, and what we can to do slow each one of those:
Damage to DNA accumulates
While DNA can get damaged without any external stimulus to cause that, there are a lot of modifiable factors that we can do to reduce DNA damage. The list is easy: if it causes cancer, it causes aging.
Thus, check out: Stop Cancer 20 Years Ago
Cells become senescent
Our cells are replaced all the time; some sooner than others, but all of them at some point. The problem occurs when cells are outliving their usefulness. If a cell becomes completely immortal, that is cancer, but happily most don’t. Nevertheless, having senescent (aging) cells in the body means that those senescent cells are what get copied forwards by mitosis, and our DNA becomes like a photocopy of a tattered old photocopy of a tattered old photocopy. Which, needless to say, is not good for our health. So, the best thing to do is to kill them earlier:
Yes, really: Fisetin: The Anti-Aging Assassin
Mitochondria become dysfunctional
Without properly functional mitochondria, no living human cell can do its job properly.
Options: 7 Ways To Boost Mitochondrial Health To Fight Disease
Beneficial genes are switched off, harmful genes are on
It’s easy to think of our genes as being immutable, but epigenetics means that our environment (amongst other factors) can mean that our gene expression changes.
Imagine it this way: your genes are a set of instructions for your body. However, your body will act or not on those instructions, depending on other factors. Hormones often play a big part in this; for example sex hormones tell the body which set of genetic instructions to read (and thus what kind of body to build/rebuild), and cortisol or oxytocin can tell the body which set of contingency plans to activate or suppress (respectively). A milder example is gray hair; genes have the program for it, but many other factors inform the body when, if, and how to do it.
Of more concern when it comes to aging is what goes on with more critical systems, such as the brain, in which the aforementioned DNA damage can cause unhelpful instructions to get interpreted, resulting in epigenetic changes that in turn facilitate age-related degeneration.
As to what can be done, see : Klotho: Unzipping The Genes Of Aging?
Stem cells become exhausted
Stem cells can become different kinds of cells, and thus they’re very useful for maintaining a healthy body. However, they get depleted with age. We can slow down the rate of loss, though; for example, intermittent fasting can help:
Per Dr. Li’s 5 Ways To Beat Cancer (And Other Diseases)
And for more detail, see:
Doctor’s Tip: Regeneration (stem cells) — one of your body’s five defense systems
(complete with lists of foods to eat or avoid for stem cell health)
Cells fail to communicate properly
Cells need to talk to each other constantly, to continue doing their jobs. We are one big organism, after all, and not a haphazard colony of the countless cells that constitute such. However, cell signalling gets worse with age, which in turn precipitates others age-related problems. Fortunately, there are nutrients that can improve cellular communication.
For example: PS, We Love You ← this is about phosphatidylserine, also called “PS”
Telomeres become shorter
These protective caps on our DNA suffer the wear-and-tear so that our DNA doesn’t have to. However, as they get shorter, the DNA can start suffering damage. For this reason, telomere length is considered one of the most “Gold Standard” markers of cellular aging.
Here’s what can be done for that: The Stress Prescription (Against Aging!)
The body fails to sense nutritional intake properly
This is mostly about insulin signalling (though problems can occur in other systems too, but we only have so much room here), so it’s important to take care of that.
See: Turn Back The Clock On Insulin Resistance
Proteins accumulate errors
This is due to DNA damage, of course, but there are specific things that can reduce protein error accumulation; see for example:
A quick fix – preventing protein errors extends lifespan
See also: Rapamycin Can Slow Aging By 20% (But Watch Out)
The microbiome becomes unbalanced
We at 10almonds often mention that gut health affects pretty much every other kind of health, and it’s true for aging as well. So, take care of that microbiome!
Here’s a primer: Gut Health 101
Want to know more about delaying aging beyond the cellular level?
Check out: Age & Aging: What Can (And Can’t) We Do About It?
Take care!
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Yes, blue light from your phone can harm your skin. A dermatologist explains
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Social media is full of claims that everyday habits can harm your skin. It’s also full of recommendations or advertisements for products that can protect you.
Now social media has blue light from our devices in its sights.
So can scrolling on our phones really damage your skin? And will applying creams or lotions help?
Here’s what the evidence says and what we should really be focusing on.
Max kegfire/Shutterstock Remind me, what actually is blue light?
Blue light is part of the visible light spectrum. Sunlight is the strongest source. But our electronic devices – such as our phones, laptops and TVs – also emit it, albeit at levels 100-1,000 times lower.
Seeing as we spend so much time using these devices, there has been some concern about the impact of blue light on our health, including on our eyes and sleep.
Now, we’re learning more about the impact of blue light on our skin.
How does blue light affect the skin?
The evidence for blue light’s impact on skin is still emerging. But there are some interesting findings.
1. Blue light can increase pigmentation
Studies suggest exposure to blue light can stimulate production of melanin, the natural skin pigment that gives skin its colour.
So too much blue light can potentially worsen hyperpigmentation – overproduction of melanin leading to dark spots on the skin – especially in people with darker skin.
Blue light can worsen dark spots on the skin caused by overproduction of melanin. DUANGJAN J/Shutterstock 2. Blue light can give you wrinkles
Some research suggests blue light might damage collagen, a protein essential for skin structure, potentially accelerating the formation of wrinkles.
A laboratory study suggests this can happen if you hold your device one centimetre from your skin for as little as an hour.
However, for most people, if you hold your device more than 10cm away from your skin, that would reduce your exposure 100-fold. So this is much less likely to be significant.
3. Blue light can disrupt your sleep, affecting your skin
If the skin around your eyes looks dull or puffy, it’s easy to blame this directly on blue light. But as we know blue light affects sleep, what you’re probably seeing are some of the visible signs of sleep deprivation.
We know blue light is particularly good at suppressing production of melatonin. This natural hormone normally signals to our bodies when it’s time for sleep and helps regulate our sleep-wake cycle.
By suppressing melatonin, blue light exposure before bed disrupts this natural process, making it harder to fall asleep and potentially reducing the quality of your sleep.
The stimulating nature of screen content further disrupts sleep. Social media feeds, news articles, video games, or even work emails can keep our brains active and alert, hindering the transition into a sleep state.
Long-term sleep problems can also worsen existing skin conditions, such as acne, eczema and rosacea.
Sleep deprivation can elevate cortisol levels, a stress hormone that breaks down collagen, the protein responsible for skin’s firmness. Lack of sleep can also weaken the skin’s natural barrier, making it more susceptible to environmental damage and dryness.
Can skincare protect me?
The beauty industry has capitalised on concerns about blue light and offers a range of protective products such as mists, serums and lip glosses.
From a practical perspective, probably only those with the more troublesome hyperpigmentation known as melasma need to be concerned about blue light from devices.
This condition requires the skin to be well protected from all visible light at all times. The only products that are totally effective are those that block all light, namely mineral-based suncreens or some cosmetics. If you can’t see the skin through them they are going to be effective.
But there is a lack of rigorous testing for non-opaque products outside laboratories. This makes it difficult to assess if they work and if it’s worth adding them to your skincare routine.
What can I do to minimise blue light then?
Here are some simple steps you can take to minimise your exposure to blue light, especially at night when it can disrupt your sleep:
- use the “night mode” setting on your device or use a blue-light filter app to reduce your exposure to blue light in the evening
- minimise screen time before bed and create a relaxing bedtime routine to avoid the types of sleep disturbances that can affect the health of your skin
- hold your phone or device away from your skin to minimise exposure to blue light
- use sunscreen. Mineral and physical sunscreens containing titanium dioxide and iron oxides offer broad protection, including from blue light.
In a nutshell
Blue light exposure has been linked with some skin concerns, particularly pigmentation for people with darker skin. However, research is ongoing.
While skincare to protect against blue light shows promise, more testing is needed to determine if it works.
For now, prioritise good sun protection with a broad-spectrum sunscreen, which not only protects against UV, but also light.
Michael Freeman, Associate Professor of Dermatology, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Do We Need Sunscreen In Winter, Really?
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small 😎
❝I keep seeing advice that we shoudl wear sunscreen out in winter even if it’s not hot or sunny, but is there actually any real benefit to this?❞
Short answer: yes (but it’s indeed not as critical as it is during summer’s hot/sunny days)
Longer answer: first, let’s examine the physics of summer vs winter when it comes to the sun…
In summer (assuming we live far enough from the equator to have this kind of seasonal variation), the part of the planet where we live is tilted more towards the sun. This makes it closer, and more importantly, it’s more directly overhead during the day. The difference in distance through space isn’t as big a deal as the difference in distance through the atmosphere. When the sun is more directly overhead, its rays have a shorter path through our atmosphere, and thus less chance of being blocked by cloud cover / refracted elsewhere / bounced back off into space before it even gets that far.
In winter, the opposite of all that is true.
Morning/evening also somewhat replicate this compared to midday, because the sun being lower in the sky has a similar effect to seasonal variation causing it to be less directly overhead.
For this reason, even though visually the sun may be just as bright on a winter morning as it is on a summer midday, the rays have been filtered very differently by the time they get to us.
This is one reason why you’re much less likely to get sunburned in the winter, compared to the summer (others include the actual temperature difference, your likely better hydration, and your likely more modest attire protecting you).
However…
The reason it is advisable to wear sunscreen in winter is not generally about sunburn, and is rather more about long-term cumulative skin damage (ranging from accelerated aging to cancer) caused by the UV rays—specifically, mostly UVA rays, since UVB rays (with their higher energy but shorter wavelength) have nearly all been blocked by the atmosphere.
Here’s a good explainer of that from the American Cancer Society:
UV (Ultraviolet) Radiation and Cancer Risk
👆 this may seem like a no-brainer, but there’s a lot explained here that demystifies a lot of things, covering ionizing vs non-ionizing radiation, x-rays and gamma-rays, the very different kinds of cancer caused by different things, and what things are dangerous vs which there’s no need to worry about (so far as best current science can say, at least).
Consequently: yes, if you value your skin health and avoidance of cancer, wearing sunscreen when out even in the winter is a good idea. Especially if your phone’s weather app says the UV index is “moderate” or above, but even if it’s “low”, it doesn’t hurt to include it as part of your skincare routine.
But what if sunscreens are dangerous?
Firstly, not all sunscreens are created equal:
Learn more: Who Screens The Sunscreens?
Secondly: consider putting on a protective layer of moisturizer first, and then the sunscreen on top. Bear in mind, this is winter we’re talking about, so you’re probably not going out in a bikini, so this is likely a face-neck-hands job and you’re done.
What about vitamin D?
Humans evolved to have more or less melanin in our skin depending on where we lived, and white people evolved to wring the most vitamin D possible out of the meagre sun far from the equator. Black people’s greater melanin, on the other hand, offers some initial protection against the sun (but any resultant skin cancer is then more dangerous than it would be for white people if it does occur, so please do use sunscreen whatever your skintone).
Nowadays many people live in many places which may or may not be the places we evolved for, and so we have to take that into account when it comes to sun exposure.
Here’s a deeper dive into that, for those who want to learn:
Take care!
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