Mythbusting Moldy Food
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Most Food Should Not Be Fuzzy
In yesterday’s newsletter, we asked you for your policy when it comes to mold on food (aside from intentional mold, e.g. blue cheese etc), and the responses were interesting:
- About 49% said “throw the whole thing away no matter what it is; it is dangerous”
- About 24% said “cut the mold off and eat the rest of whatever it is”
- The remainder were divided equally between “eat it all; keep the immune system on its toes” and “cut the mold off bread, but moldy animal products are dangerous”
So what does the science say?
Some molds are safe to eat: True or False?
True! We don’t think this is contentious so we’ll not spend much time on it, but just for the sake of being methodical: foods that are supposed to have mold on, including many kinds of cheese and even some kinds of cured meat (salami is an example; that powdery coating is mold).
We could give a big list of safe and unsafe molds, but that would be a list of names and let’s face it, they don’t introduce themselves by name.
However! The litmus test of “is it safe to eat” is:
Did you acquire it with this mold already in place and exactly as expected and advertised?
- If so, it is safe to eat (unless you have an allergy or such)
- If not, it is almost certainly not safe to eat
(more on why, later)
The “sniff test” is a good way to tell if moldy food is bad: True or False?
False. Very false. Because of how the sense of smell works.
You may feel like smell is a way of knowing about something at a distance, but the only way you can smell something is if particles of it are physically connecting with your olfactory receptors inside you. Yes, that has unfortunate implications about bathroom smells, but for now, let’s keep our attention in the kitchen.
If you sniff a moldy item of food, you will now have its mold spores inside your respiratory system. You absolutely do not want them there.
If we cut off the mold, the rest is safe to eat: True or False?
True or False, depending on what it is:
- Hard vegetables (e.g carrots, cabbage), and hard cheeses (e.g. Gruyère, Gouda) – cut off with an inch margin, and it should be safe
- Soft vegetables (e.g. tomatoes, and any vegetables that were hard but are now soft after cooking) – discard entirely; it is unsafe
- Anything else – discard entirely; it is unsafe
The reason for this is because in the case of the hard products mentioned, the mycelium roots of the mold cannot penetrate far.
In the case of the soft products mentioned, the surface mold is “the tip of the iceberg”, and the mycelium roots, which you will not usually be able to see, will penetrate the rest of it.
“Anything else” seems like quite a sweeping statement, but fruits, soft cheeses, yogurt, liquids, jams and jellies, cooked grains and pasta, meats, and yes, bread, are all things where the roots can penetrate deeply and easily. Regardless of you only being able to see a small amount, the whole thing is probably moldy.
The USDA has a handy downloadable factsheet:
Molds On Food: Are They Dangerous?
Eating a little mold is good for the immune system: True or False?
False, generally. There are of course countless types of mold, but not only are many of them pathogenic (mycotoxins), but also, a food that has mold will usually also have pathogenic bacteria along with the mold.
See for example: Occurrence, Toxicity, and Analysis of Major Mycotoxins in Food
Food poisoning will never make you healthier.
But penicillin is safe to eat: True or False?
False, and also penicillin is not the mold on your bread (or other foods).
Penicillin, an antibiotic* molecule, is produced by some species of Penicillium sp., a mold. There are hundreds of known species of Penicillium sp., and most of them are toxic, usually in multiple ways. Take for example:
Penicillium roqueforti PR toxin gene cluster characterization
*it is also not healthy to consume antibiotics unless it is seriously necessary. Antibiotics will wipe out most of your gut’s “good bacteria”, leaving you vulnerable. People have died from C. diff infections for this reason. So obviously, if you really need to take antibiotics, take them as directed, but if not, don’t.
See also: Four Ways Antibiotics Can Kill You
One last thing…
It may be that someone reading this is thinking “I’ve eaten plenty of mold, and I’m fine”. Or perhaps someone you tell about this will say that.
But there are two reasons this logic is flawed:
- Survivorship bias (like people who smoke and live to 102; we just didn’t hear from the 99.9% of people who smoke and die early)
- Being unaware of illness is not being absent of illness. Anyone who’s had an alarming diagnosis of something that started a while ago will know this, of course. It’s also possible to be “low-level ill” often and get used to it as a baseline for health. It doesn’t mean it’s not harmful for you.
Stay safe!
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Huperzine A: A Natural Nootropic
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Huperzine A: A Natural Nootropic
Huperzine A is a compound, specifically a naturally occurring sesquiterpene alkaloid, that functions as an acetylcholinesterase inhibitor. If that seems like a bunch of big words, don’t worry, we’ll translate in a moment.
First, a nod to its origins: it is found in certain kinds of firmoss, especially the “toothed clubmoss”, Huperzia serrata, which grows in many Asian countries.
What’s an acetylcholinesterase inhibitor?
Let’s do this step-by-step:
- An acetylcholinesterase inhibitor is a compound that inhibits acetylcholinesterase.
- Acetylcholinesterase is an enzyme that catalyzes (speeds up) the breakdown of acetylcholine.
- Acetylcholine is a neurotransmitter; it’s an ester of acetic acid and choline.
- This is the main neurotransmitter of the parasympathetic nervous system, and is also heavily involved in cognitive functions including memory and creative thinking.
What this means: if you take an acetylcholinesterase inhibitor like huperzine A, it will inhibit acetylcholinesterase, meaning you will have more acetylcholine to work with. That’s good.
What can I expect from it?
Huperzine A has been well-studied for a while, mostly for the prevention and treatment of Alzheimer’s disease:
- New insights into huperzine A for the treatment of Alzheimer’s disease
- Huperzine A: Is it an Effective Disease-Modifying Drug for Alzheimer’s Disease?
- Huperzine A and Its Neuroprotective Molecular Signaling in Alzheimer’s Disease
However, research has suggested that huperzine A is much better as a prevention than a treatment:
❝A central event in the pathogenesis of Alzheimer’s disease (AD) is the accumulation of senile plaques composed of aggregated amyloid-β (Aβ) peptides.
Ex vivo electrophysiological experiments showed that 10 μM of Aβ1-40 significantly decreased the effect of the AChE inhibitor huperzine A on the synaptic potential parameters. ❞
~ Dr. Irina Zueva
In other words: the answer to the titular question is “Yes, yes it can”
And, to translate Dr. Zueva’s words into simple English:
- People with Alzheimer’s have amyloid-β plaque in their brains
- That plaque reduces the effectiveness of huperzine A
So, what if we take it in advance? That works much better:
❝Pre-treatment with [huperzine A] at concentrations of 50, 100, and 150 µg/mL completely inhibited the secretion of PGE2, TNF-α, IL-6, and IL-1β compared to post-treatment with [huperzine A].
This suggests that prophylactic treatment is better than post-inflammation treatment. ❞
~ Dr. Thu Kim Dang
Source: Anti-neuroinflammatory effects of alkaloid-enriched extract from Huperzia serrata
As you may know, neuroinflammation is a big part of Alzheimer’s pathology, so we want to keep that down. The above research suggests we should do that sooner rather than later.
Aside from holding off dementia, can it improve memory now, too?
There’s been a lot less research done into this (medicine is generally more concerned with preventing/treating disease, than improving the health of healthy people), but there is some:
^This is a small (n=68) old (1999) study for which the full paper has mysteriously disappeared and we only get to see the abstract. It gave favorable results, though.
The effects of huperzine A and IDRA 21 on visual recognition memory in young macaques
^This, like most non-dementia research into HupA, is an animal study. But we chose to spotlight this one because, unlike most of the studies, it did not chemically lobotomize the animals first; they were and remained healthy. That said, huperzine A improved the memory scores most for the monkeys that performed worst without it initially.
Where can I get it?
As ever, we don’t sell it, but here’s an example product on Amazon for your convenience
Enjoy!
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Science of Yoga – by Ann Swanson
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There are a lot of yoga books out there to say “bend this way, hold this that way” and so forth, but few that really explain what is going on, how, and why. And understanding those things is of course key to motivation and adherence. So that’s what this book provides!
The book is divided into sections, and in the first part we have a tour of human anatomy and physiology. This may seem almost unrelated to yoga, but is valuable necessary-knowledge to get the most out of the next section:
The next few parts are given over to yoga asanas (stretches, positions, poses, call them what you will in English) and now we are given a clear idea of what it is doing: we get to understand exactly what’s being stretched, what blood flow is being increased and how, what organs are being settled into their correct place, and many other such things.
Importantly, this means we also understand why certain things are the way they are, and why they can’t be done in some other slightly different but perhaps superficially easier way.
The style of the book is like a school textbook, really, but without patronizing the reader. The illustrations, of which there are many, are simple enough to be clear while being detailed enough to be informative.
Bottom line: if you’re ever doing yoga at home and wondering if you should cut a certain corner, this is the book that will tell you why you shouldn’t.
Click here to check out Science of Yoga, and optimize your practice!
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Come As You Are – by Dr. Emily Nagoski
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We’ve all heard the jokes, things like: Q: “Why is the clitoris like Antarctica?” A: “Most men know it’s there; most don’t give a damn”
But… How much do people, in general, really know about the anatomy and physiology of sexual function? Usually very little, but often without knowing how little we know.
This book looks to change that. Geared to a female audience, but almost everyone will gain useful knowledge from this.
The writing style is very easy-to-read, and there are “tl;dr” summaries for those who prefer to skim for relevant information in this rather sizeable (400 pages) tome.
Yes, that’s “what most people don’t know”. Four. Hundred. Pages.
We recommend reading it. You can thank us later!
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How to Change – by Katy Milkman
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Sometimes it seems that we know everything we should be doing… We have systems and goals and principles, we know about the importance of habits, and we do our best to live them. Yet, somehow, life has other plans for us and things don’t quite come together they way they did in our genius masterplan.
So, what happened? And more importantly, what are we supposed to do about this? Katy Milkman has answers, right from the start.
Sometimes, it can be as simple as when we try to implement a change. It’s not that there’s a “wrong time” for a good change, so much that there are times that are much more likely to succeed than others… and those times can be identified and used.
Sometimes we’re falling prey to vices—which she explains how to overcome—such as:
- Impulsivity
- Procrastination
- Forgetfulness
- Laziness
We also learn some counterintuitive truths about what can boost or sabotage our confidence along the way!
Milkman writes in a compelling, almost narrative style, that makes for very easy reading. The key ideas, built up to by little (ostensibly true) stories and then revealed, become both clear and memorable. Most importantly, applicable.
Bottom line: this is a great troubleshooting guide for when you know how everything should be working, but somehow, it just doesn’t—and you’d like to fix that.
Click here to check out “How To Change” on Amazon, and get those changes rolling!
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MSG vs. Salt: Sodium Comparison
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It’s Q&A Day at 10almonds!
Q: Is MSG healthier than salt in terms of sodium content or is it the same or worse?
Great question, and for that matter, MSG itself is a great topic for another day. But your actual question, we can readily answer here and now:
- Firstly, by “salt” we’re assuming from context that you mean sodium chloride.
- Both salt and MSG do contain sodium. However…
- MSG contains only about a third of the sodium that salt does, gram-for-gram.
- It’s still wise to be mindful of it, though. Same with sodium in other ingredients!
- Baking soda contains about twice as much sodium, gram for gram, as MSG.
Wondering why this happens?
Salt (sodium chloride, NaCl) is equal parts sodium and chlorine, by atom count, but sodium’s atomic mass is lower than chlorine’s, so 100g of salt contains only 39.34g of sodium.
Baking soda (sodium bicarbonate, NaHCO₃) is one part sodium for one part hydrogen, one part carbon, and three parts oxygen. Taking each of their diverse atomic masses into account, we see that 100g of baking soda contains 27.4g sodium.
MSG (monosodium glutamate, C₅H₈NO₄Na) is only one part sodium for 5 parts carbon, 8 parts hydrogen, 1 part nitrogen, and 4 parts oxygen… And all those other atoms put together weigh a lot (comparatively), so 100g of MSG contains only 12.28g sodium.
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The China Study – by Dr. T Colin Campbell and Dr. Thomas M. Campbell
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This is not the newest book we’ve reviewed (originally published 2005; this revised and expanded edition 2016), but it is a seminal one.
You’ve probably heard it referenced, and maybe you’ve wondered what the fuss is about. Now you can know!
The titular study itself was huge. We tend to think “oh there was one study” and look to discount it, but it literally looked at the population of China. That’s a large study.
And because China is relatively ethnically homogenous, especially per region, it was easier to isolate what dietary factors made what differences to health. Of course, that did also create a limitation: follow-up studies would be needed to see if the results were the same for non-Chinese people. But even for the rest of us (this reviewer is not Chinese), it already pointed science in the right direction. And sure enough, smaller follow-up studies elsewhere found the same.
But enough about the research; what about the book? This is a book review, not a research review, after all.
The book itself is easy for a lay reader to understand. It explains how the study was conducted (no small feat), and how the data was examined. It also discusses the results, and the conclusions drawn from those results.
In light of all this, it also offers simple actionable advices, on how to eat to avoid disease in general, and cancer in particular. In especially that latter case, one take-home conclusion was: get more of your protein from plants for a big reduction in cancer risk, for example.
Bottom line: this book is an incredible blend of “comprehensive” and “readable” that we don’t often find in the same book! It contains not just a lot of science, but also an insight into how the science works, on a research level. And, of course, its results and conclusions have strong implications for all our lives.
Click here to check out The China Study, to know more about it!
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