Colloidal Gold’s Impressive Claims
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All That Glitters…
Today we’ll be examining colloidal gold supplementation.
This issue of 10almonds brought to you by the writer suddenly getting lots of advertisements for this supplement. It’s not a new thing though, and has been around in one form or another since pretty much forever.
Colloidal gold is…
- Gold, as in the yellow metal
- Colloidal, as in “very tiny insoluble particles dispersed though another substance (such as water)”
What are the claims made for it?
Honestly, just about everything is claimed for it. But to go with some popular claims:
- Reduces inflammation
- Supports skin health
- Boosts immune function
- Combats aging
- Improves cognitive function
So, what does the science say?
Does it do those things?
The short and oversimplified answer is: no
However, there is a little bit of tangential merit, so we’re going to talk about the science of it, and how the leap gets made between what the science says and what the advertisements say.
First… What makes gold so special, in general? Historically, three things:
- It’s quite rare
- It’s quite shiny
- It’s quite unreactive
- The first is about supply and demand, so that’s not very important to us in this article.
- The second is an aesthetic quality, which actually will have a little bit of relevance, but not much.
- The third has been important historically (because it meant that shiny gold stayed shiny, because it didn’t tarnish), and now also important industrially too, as gold can be used in many processes where we basically need for nothing to happen (i.e., a very inert component is needed)
That third quality—its unreactivity—has become important in medicine.
When scientists need a way to deliver something (without the delivering object getting eaten by the body’s “eat everything” tendencies), or otherwise not interact chemically with anything around, gold is an excellent choice.
Hence gold teeth, and gold fillings, by the way. They’re not just for the bling factor; they were developed because of their unreactivity and thus safety.
So, what about those health claims we mentioned above?
Here be science (creative interpretations not included)
The most-backed-by-science claim from that list is “reduces inflammation”.
Websites selling colloidal gold cite studies such as:
Gold nanoparticles reduce inflammation in cerebral microvessels of mice with sepsis
A promising title!The results of the study showed:
❝20 nm cit-AuNP treatment reduced leukocyte and platelet adhesion to cerebral blood vessels, prevented BBB failure, reduced TNF- concentration in brain, and ICAM-1 expression both in circulating polymorphonuclear (PMN) leukocytes and cerebral blood vessels of mice with sepsis. Furthermore, 20 nm cit-AuNP did not interfere with the antibiotic effect on the survival rate of mice with sepsis.❞
That “20 nm cit-AuNP” means “20 nm citrate-covered gold nanoparticles”
So it is not so much the antioxidant powers of gold being tested here, as the antioxidant powers of citrate, a known antioxidant. The gold was the carrying agent, whose mass and unreactivity allowed it to get where it needed to be.
The paper does say the words “Gold nanoparticles have been demonstrated to own important anti-inflammatory properties“ in the abstract, but does not elaborate on that, reference it, or indicate how.
Websites selling colloidal gold also cite papers such as:
Anti-inflammatory effect of gold nanoparticles supported on metal oxides
Another promising title! However the abstract mentions:
❝The effect was dependent on the MOx NPs chemical nature
[…]
The effect of Au/TiO2 NPs was not related to Au NPs size❞
MOx NPs = mineral oxide nanoparticles. In this case, the gold was a little more than a carrying agent, though, because the gold is described and explained as being a catalytic agent (i.e., its presence helps the attached mineral oxides react more quickly).
We said that was the most-backed claim, and as you can see, it has some basis but is rather tenuous since the gold by itself won’t do anything; it just helps the mineral oxides.
Next best-backed claim builds from that, which is “supports skin health”.
Sometimes colloidal gold is sold as a facial tonic. By itself it’ll distribute (inert) gold nanoparticles across your skin, and may “give you a healthy glow”, because that’s what happens when you put shiny wet stuff on your face.
Healthwise, if the facial tonic also contains some of the minerals we mentioned above, then it may have an antioxidant effect. But again, no minerals, no effect.
The claim that it “combats aging” is really a tag-on to the “antioxidant” claim.
As for the “supports immune health” claim… Websites selling colloid gold cite studies such as:
To keep things brief: gold can fight infectious diseases in much the same way that forks can fight hunger. It’s an inert carrying agent.
As for “improves cognitive function”? The only paper we could find cited was that mouse sepsis study again, this time with the website saying “researchers found that rats treated with colloidal gold showed improved spatial memory and learning ability“ whereas the paper cited absolutely did not claim that, not remotely, not even anything close to that. It wasn’t even rats, it was mice, and they did not test their memory or learning.
Is it safe?
Colloidal gold supplementation is considered very safe, precisely because gold is one of the least chemically reactive substances you could possibly consume. It is special precisely because it so rarely does anything.
However, impurities could be introduced in the production process, and the production process often involves incredibly harsh reagents to get the gold ions, and if any of those reagents are left in the solution, well, gold is safe but sodium borohydride and chloroauric acid aren’t!
Where can I get some?
In the unlikely event that our research review has given you an urge to try it, here’s an example product on Amazon
Take care!
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What To Do If Having A Stroke Alone?
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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 😎
❝Thank you for the video about what to do if you have a heart attack alone, what about what to do if you have a stroke alone?❞
(for anyone who missed that video, here it is)
That’s a good question, especially as stroke risk is rising in the industrialized world in general, and the US in particular.
However, let’s start with the caveat that if you are having a stroke, there’s a good chance you will forget what we are about to say, what with the immediate effects it has on the brain. That said…
The general advice when it comes to looking after someone else who is experiencing a stroke, is, “don’t”.
In other words, call emergency services, and don’t do anything else, e.g:
- don’t give them anything to eat or drink
- don’t give them any medications
- don’t let them go to sleep
- don’t let them talk you out of calling emergency services
- don’t let them drive themselves to hospital
- don’t drive them to hospital yourself either*
*This is for two reasons:
- an ambulance crew has skills and resources that you don’t, and can begin treatment en-route, and also,
- not all hospitals have appropriate resources to treat stroke, so the ambulance crew will know to drive to one that does, instead of driving to a random hospital and hoping for the best
So, flipping this for if it’s you having the stroke, and you’re cognizant enough to remember this:
- do call an ambulance; stay on the line and don’t do anything else unless instructed by the emergency services.
In order to do that, of course it’s important to recognize the symptoms; you probably know these but just in case, the mnemonic is “FAST”:
- Face: is there weakness on one side of their face?
- Arms: if they raise both arms, does one drift downwards?
- Speech: if they speak, is their speech slurred or otherwise unusual?
- Time: to call emergency services
It’s great to not get caught out by surprise, so you might also want to check out:
6 Signs Of Stroke (One Month In Advance)
Take care!
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Sweet Potato vs Cassava – Which is Healthier?
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Our Verdict
When comparing sweet potato to cassava, we picked the sweet potato.
Why?
For any unfamiliar with cassava, it’s also called manioc or yuca/yucca, and it’s a tuber that can be used a lot like sweet potato. It’s popular in S. America, often in recipes that aren’t the healthiest (deep-fried chunky “cassava chips” are popular in Brazil, for example, and farofa, a flour made from cassava, is less healthy even than refined white flour from wheat), but today we’re going to judge it on its own merit—since after all, almost anything can be deep-fried and many things can be turned into flour, but it doesn’t mean we have to do that.
Let’s talk macros first: sweet potato has nearly 2x the protein, while cassava has nearly 2x the carbs. As for fiber to soften those carbs’ impact on our blood sugars, well, sweet potato has about 2x the fiber. All in all for macros, a clear and easy win for sweet potato.
Important note: as for the impact that has on glycemic index: the exact glycemic index will depend on what you do with it (different cooking methods change the GI), but broadly speaking, sweet potatoes are considered a medium GI food, while cassava is a very high GI food, to the point that it’s higher than sucrose, and nearly equal to pure glucose. Which is impressive, for a tuber.
In terms of vitamins, sweet potato’s famously high vitamin A content raises the bar, but it’s not all it has to offer: sweet potato has more of vitamins A, B1, B2, B3, B5, B6, E, and K, while cassava has more of vitamins B9 and choline. Just for amusement’s sake, let’s note that the sweet potato has over 1,478x the vitamin A content. In any case, the vitamins category is another clear win for sweet potato.
When it comes to minerals, it’s again quite one-sided: sweet potato has more calcium, copper, iron, magnesium, manganese, phosphorus, and potassium, while cassava has more selenium. So, sweet potato wins yet again.
In short: definitely a case of “the less widely-available option is not necessarily the healthier”!
Want to learn more?
You might like to read:
Glycemic Index vs Glycemic Load vs Insulin Index
Take care!
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Insights into Osteoporosis
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
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 would like to see some articles on osteoporosis❞
You might enjoy this mythbusting main feature we did a few weeks ago!
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The BAT-pause!
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When Cold Weather & The Menopause Battle It Out
You may know that (moderate, safe) exposure to the cold allows our body to convert our white and yellow fat into the much healthier brown fat—also called brown adipose tissue, or “BAT” to its friends.
If you didn’t already know that, then well, neither did scientists until about 15 years ago:
The Changed Metabolic World with Human Brown Adipose Tissue: Therapeutic Visions
You can read more about it here:
Cool Temperature Alters Human Fat and Metabolism
This is important, especially because the white fat that gets converted is the kind that makes up most visceral fat—the kind most associated with all-cause mortality:
Visceral Belly Fat & How To Lose It ← this is not the same as your subcutaneous fat, the kind that sits directly under your skin and keeps you warm; this is the fat that goes between your organs and of which we should only have a small amount!
The BAT-pause
It’s been known (since before the above discovery) that BAT production slows considerably as we get older. Not too shocking—after all, many metabolic functions slow as we get older, so why should fat regulation be any different?
But! Rodent studies found that this was tied less to age, but to ovarian function: rats who underwent ovariectomies suffered reduced BAT production, regardless of their age.
Naturally, it’s been difficult to recreate such studies in humans, because it’s difficult to find a large sample of young adults willing to have their ovaries whipped out (or even suppressed chemically) to see how badly their metabolism suffers as a result.
Nor can an observational study (for example, of people who incidentally have ovaries removed due to ovarian cancer) usefully be undertaken, because then the cancer itself and any additional cancer treatments would be confounding factors.
Perimenopausal study to the rescue!
A recent (published last month, at time of writing!) study looked at women around the age of menopause, but specifically in cohorts before and after, measuring BAT metabolism.
By dividing the participants into groups based on age and menopausal status, and dividing the post-menopausal group into “takes HRT” and “no HRT” groups, and dividing the pre-menopausal group into “normal ovarian function” and “ovarian production of estrogen suppressed to mimic slightly early menopause” groups (there’s a drug for that), and then having groups exposed to warm and cold temperatures, and measuring BAT metabolism in all cases, they were able to find…
It is about estrogen, not age!
You can read more about the study here:
“Good” fat metabolism changes tied to estrogen loss, not necessarily to aging, shows study
…and the study itself, here:
Brown adipose tissue metabolism in women is dependent on ovarian status
What does this mean for men?
This means nothing directly for (cis) men, sorry.
But to satisfy your likely curiosity: yes, testosterone does at least moderately suppress BAT metabolism—based on rodent studies, anyway, because again it’s difficult to find enough human volunteers willing to have their testicles removed for science (without there being other confounding variables in play, anyway):
Testosterone reduces metabolic brown fat activity in male mice
So, that’s bad per se, but there isn’t much to be done about it, since the rest of your (addressing our male readers here) metabolism runs on testosterone, as do many of your bodily functions, and you would suffer many unwanted effects without it.
However, as men do typically have notably less body fat in general than women (this is regulated by hormones), the effects of changes in BAT metabolism are rather less pronounced in men (per testosterone level changes) than in women (per estrogen level changes), because there’s less overall fat to convert.
In summary…
While menopausal HRT is not necessarily a silver bullet to all metabolic problems, its BAT-maintaining ability is certainly one more thing in its favor.
See also:
Dr. Jen Gunter | What You Should Have Been Told About The Menopause Beforehand
Take care!
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Undoing The Damage Of Life’s Hard Knocks
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Sometimes, What Doesn’t Kill Us Makes Us Insecure
We’ve written before about Complex PTSD, which is much more common than the more popularly understood kind:
Given that C-PTSD affects so many people (around 1 in 5, but really, do read the article above! It explains it better than we have room to repeat today), it seems like a good idea to share tips for managing it.
(Last time, we took all the space for explaining it, so we just linked to some external resources at the end)
What happened to you?
PTSD has (as a necessity, as part of its diagnostic criteria) a clear event that caused it, which makes the above question easy to answer.
C-PTSD often takes more examination to figure out what tapestry of circumstances (and likely but not necessarily: treatment by other people) caused it.
Often it will feel like “but it can’t be that; that’s not that bad”, or “everyone has things like that” (in which case, you’re probably one of the one in five).
The deeper questions
Start by asking yourself: what are you most afraid of, and why? What are you most ashamed of? What do you fear that other people might say about you?
Often there is a core pattern of insecurity that can be summed up in a simple, harmful, I-message, e.g:
- I am a bad person
- I am unloveable
- I am a fake
- I am easy to hurt
- I cannot keep my loved ones safe
…and so forth.
For a bigger list of common insecurities to see what resonates, check out:
Basic Fears/Insecurities, And Their Corresponding Needs/Desires
Find where they came from
You probably learned bad beliefs, and consequently bad coping strategies, because of bad circumstances, and/or bad advice.
- When a parent exclaimed in anger about how stupid you are
- When a partner exclaimed in frustration that always mess everything up
- When an employer told you you weren’t good enough
…or maybe they told you one thing, and showed you the opposite. Or maybe it was entirely non-verbal circumstances:
- When you gambled on a good idea and lost everything
- When you tried so hard at some important endeavour and failed
- When you thought someone could be trusted, and learned the hard way that you were wrong
These are “life’s difficult bits”, but when we’ve lived through a whole stack of them, it’s less like a single shattering hammer-blow of PTSD, and more like the consistent non-stop tap tap tap that ends up doing just as much damage in the long run.
Resolve them
That may sound a bit like a “and quickly create world peace” level of task, but we have tools:
Ask yourself: what if…
…it had been different? Take some time and indulge in a full-blown fantasy of a life that was better. Explore it. How would those different life lessons, different messages, have impacted who you are, your personality, your behaviour?
This is useful, because the brain is famously bad at telling real memories from false ones. Consciously, you’ll know that one was an exploratory fantasy, but to your brain, it’s still doing the appropriate rewiring. So, little by little, neuroplasticity will do its thing.
Tell yourself a better lie
We borrowed this one from the title of a very good book which we’ve reviewed previously.
This idea is not about self-delusion, but rather that we already express our own experiences as a sort of narrative, and that narrative tends to contain value judgements that are often not useful, e.g. “I am stupid”, “I am useless”, and all the other insecurities we mentioned earlier. Some simple examples might be:
- “I had a terrible childhood” → “I have come so far”
- “I should have known better” → “I am wiser now”
- “I have lost so much” → “I have experienced so much”
So, replacing that self-talk can go a long way to re-writing how secure we feel, and therefore how much trauma-response (ideally: none!) we have to stimuli that are not really as threatening as we sometimes feel they are (a hallmark of PTSD in general).
Here’s a guide to more ways:
How To Get Your Brain On A More Positive Track (Without Toxic Positivity)
Take care!
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Apple vs Apricot – Which is Healthier?
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Our Verdict
When comparing apple to apricot, we picked the apricot.
Why?
In terms of macros, there’s not too much between them; apples are higher in carbs and only a little higher in fiber, which disparity makes for a slightly higher glycemic index, but it’s not a big difference and they are both low GI foods.
Micronutrients, however, set these two fruits apart:
In the category of vitamins, apple is a tiny bit higher in choline, while apricots are higher in vitamins A, B1, B2, B3, B5, B6, B9, C, E, and K—in most cases, by quite large margins, too. All in all, a clear and easy win for apricots.
When it comes to minerals, apples are not higher in any minerals, while apricots are higher in calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. There’s simply no contest here.
In short, if an apple a day keeps the doctor away, then an apricot will give the doctor a nice weekend break somewhere.
Want to learn more?
You might like to read:
Top 8 Fruits That Prevent & Kill Cancer
Take care!
Don’t Forget…
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