Cordyceps: Friend Or Foe?
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Cordyceps: friend or foe?
Cordyceps is a famously frightening fungus. It’s the one responsible for “zombie ants” and other zombie creatures, and it’s the basis for the existential threat to humanity in the TV show The Last of Us.
It’s a parasitic fungus that controls the central and peripheral nervous systems of its host, slowly replacing the host’s body, as well as growing distinctive spines that erupt out of the host’s body. Taking over motor functions, it compels the host to do two main things, which are to eat more food, and climb to a position that will be good to release spores from.
Fortunately, none of that matters to humans. Cordyceps does not (unlike in the TV show) affect humans that way.
What does Cordyceps do in humans?
Cordyceps (in various strains) is enjoyed as a health supplement, based on a long history of use in Traditional Chinese Medicine, and nowadays it’s coming under a scientific spotlight too.
The main health claims for it are:
- Against inflammation
- Against aging
- Against cancer
- For blood sugar management
- For heart health
- For exercise performance
Sounds great! What does the science say?
There’s a lot more science for the first three (which are all closely related to each other, and often overlapping in mechanism and effect).
So let’s take a look:
Against inflammation
The science looks promising for this, but studies so far have either been in vitro (cell cultures in petri dishes), or else murine in vivo (mouse studies), for example:
- Anti-inflammatory effects of Cordyceps mycelium in murine macrophages
- Cordyceps sinensis as an immunomodulatory agent
- Immunomodulatory functions of extracts from Cordyceps cicadae
- Cordyceps pruinosa inhibits in vitro and in vivo inflammatory mediators
In summary: we can see that it has anti-inflammatory properties for mice and in the lab; we’d love to see the results of studies done on humans, though. Also, while it has anti-inflammatory properties, it performed less well than commonly-prescribed anti-inflammatory drugs, for example:
❝C. militaris can modulate airway inflammation in asthma, but it is less effective than prednisolone or montelukast.❞
Against aging
Because examining the anti-aging effects of a substance requires measuring lifespans and repeating the experiment, anti-aging studies do not tend to be done on humans, because they would take lifetimes to perform. To this end, it’s inconvenient, but not a criticism of Cordyceps, that studies have been either mouse studies (short lifespan, mammals like us) or fruit fly studies (very short lifespan, genetically surprisingly similar to us).
The studies have had positive results, with typical lifespan extensions of 15–20%:
- The lifespan-extending effect of Cordyceps sinensis in normal mice
- Cordyceps sinensis oral liquid prolongs the lifespan of the fruit fly, Drosophila melanogaster
- Anti-aging activity of polysaccharides from Cordyceps militaris
- Anti-aging effect of Cordyceps sinensis extract
Against cancer
Once again, the studies here have been in vitro, or murine in vivo. They do look good though:
In vitro (human cell cultures in a lab):
In vivo (mouse studies):
Summary of these is: Cordyceps quite reliably inhibits tumor growth in vitro (human cell cultures) and in vivo (mouse studies). However, trials in human cancer patients are so far conspicuous by their absence.
For blood sugar management
Cordyceps appears to mimic the action of insulin, without triggering insulin sensitivity. For example:
The anti-hyperglycemic activity of the fruiting body of Cordyceps in diabetic rats
There were some other rat/mouse studies with similar results. No studies in humans yet.
For heart health
Cordyceps contains adenosine. You may remember that caffeine owes part of its stimulant effect to blocking adenosine, the hormone that makes us feel sleepy. So in this way, Cordyceps partially does the opposite of what caffeine does, and may be useful against arrhythmia:
Cardiovascular protection of Cordyceps sinensis act partially via adenosine receptors
For exercise performance
A small (30 elderly participants) study found that Cordyceps supplementation improved VO2 max by 7% over the course of six weeks:
However, another small study (22 young athletes) failed to reproduce those results:
Cordyceps Sinensis supplementation does not improve endurance exercise performance
In summary…
Cordyceps almost certainly has anti-inflammation, anti-aging, and anti-cancer benefits.
Cordyceps may have other benefits too, but the evidence is thinner on the ground for those, so far.
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Make Your Vegetables Work Better Nutritionally
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Most people know that boiling vegetables to death is generally not best for them, but raw isn’t always best either, and if we want to not sabotage our food, then there’s more to bear in mind than “just steam them, then”.
So, what should we keep in mind?
Water solubility
Many nutrients are water-soluble, including vitamin C, vitamin B-complex (as in, the collection of B-vitamins), and flavonoids, as well as many other polyphenols.
This means that if you cook your vegetables (which includes beans, lentils, etc) in water, a lot of the nutrients will go into the water, and be lost if you then drain that.
There are, thus, options;
- Steaming, yes
- Use just enough water to slow-cook or pressure-cook things that are suitable for slow-cooking, or pressure-cooking such as those beans and lentils. That way, when it’s done, there’s no excess water to drain, and all the nutrients are still in situ.
- Use as much water as you like, but then keep the excess water to make a soup, sauce, or broth.
- Use a cooking method other than water, where appropriate. For example, roasting peppers is a much better idea than roasting dried pulses.
- Consume raw, where appropriate.
Fat solubility
Many nutrients are fat-soluble, including vitamins A, D, E, and K, as well as a lot of carotenoids (including heavy-hitters lycopene and β-carotene) and many other polyphenols.
We’re now going to offer almost the opposite advice to that we had about water solubility. This is because unless they are dried, vegetables already contain water, whereas many contain only trace amounts of fat. Consequently, the advice this time is to add fat.
There are options:
- Cook with a modest amount of your favorite healthy cooking oil (our general go-to is extra-virgin olive oil, but avocado oil is great especially for higher temperature cooking, and an argument can be made for coconut oil sometimes)
- Remember that this goes for roasting, too. Brush those vegetables with a touch of olive oil, and not only will they be delicious, they’ll be more nutritious, too.
- Drizzle some the the above, if you’re serving things raw and it’s appropriate. This goes also for things like salads, so dress them!
- Enjoy your vegetables alongside healthy fatty foods such as nuts and seeds (or fatty animal products, if you eat those; fatty fish is a fine option here, in moderation, as are eggs, or fermented dairy products).
For a deeper understanding: Can Saturated Fats Be Healthy?
Do not, however, deep-fry your foods unless it’s really necessary and then only for an occasional indulgence that you simply accept will be unhealthy. Not only is deep-frying terrible for the health in a host of ways (ranging from an excess of oil in the resultant food, to acrylamide, to creating Advanced Glycation End-products*), but also those fat-soluble nutrients? Guess where they’ll go. And unlike with the excess vegetable-cooking water that you can turn into soup or whatever, we obviously can’t recommend doing that with deep-fryer oil.
*see also: Are You Eating AGEs?
Temperature sensitivity
Many nutrients are sensitive to temperature, including vitamin C (breaks down when exposed to high temperatures) and carotenoids (are released when exposed to higher temperatures). Another special case is ergothioneine, “the longevity vitamin” that’s not a vitamin, found in mushrooms, which is also much more bioavailable when cooked.
So, if you’re eating something for vitamin C, then raw is best if that’s a reasonable option.
And if it’s not a reasonable option? Well, then you can either a) just cope with the fact it’s going to have less vitamin C in it, or b) cook it as gently and briefly as reasonably possible.
On the other hand, if you’re eating something for carotenoids (especially including lycopene and β-carotene), or ergothioneine, then cooked is best.
Additionally, if your food is high in oxalates (such as spinach), and you don’t want it to be (for example because you have kidney problems, which oxalates can exacerbate, or would like to get more calcium out of the spinach and into your body, which which oxalic acid would inhibit), then cooked is best, as it breaks down the oxalates.
Same goes for phytates, another “anti-nutrient” found in some whole grains (such as rice and wheat); cooking breaks it down, therefore cooked is best.
This latter is not, however, applicable in the case of brown rice protein powder, for those who enjoy that—because phytates aren’t found in the part of the rice that’s extracted to make that.
And as for brown rice itself? Does contain phytates… Which can be reduced by soaking and heating, preferably both, to the point that the nutritional value is better than it would have been had there not been phytic acid present in the first place; in other words: cooked is best.
You may be wondering: “who is eating rice raw?” and the answer is: people using rice flour.
See: Brown Rice Protein: Strengths & Weaknesses
Want to know more?
Here’s a great rundown from Dr. Rosalind Gibson, Dr. Leah Perlas, and Dr. Christine Hotz:
Improving the bioavailability of nutrients in plant foods at the household level
Enjoy!
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Almond Butter vs Cashew Butter – Which is Healthier?
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Our Verdict
When comparing almond butter to cashew butter, we picked the almond.
Why?
They’re both good! But, our inherent pro-almond bias notwithstanding, the almond butter does have a slightly better spread of nutrients.
In terms of macros, almond butter has more protein while cashew butter has more carbs, and of their fats, they’re broadly healthy in both cases, but almond butter does have less saturated fat.
In the category of vitamins, both are good sources of vitamin E, but almond butter has about 4x more. The rest of the vitamins they both contain aren’t too dissimilar, aside from some different weightings of various different B-vitamins, that pretty much balance out across the two nut butters. The only noteworthy point in cashew butter’s favor here is that it is a good source of vitamin K, which almond butter doesn’t have.
When it comes to minerals, both are good sources of lots of minerals, but most significantly, almond butter has a lot more calcium and quite a bit more potassium. In contrast, cashew butter has more selenium.
In short, they’re both great, but almond butter has more relative points in its favor than cashew butter.
Here are the two we depicted today, by the way, in case you’d like to try them:
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts
Take care!
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The Uses of Delusion – by Dr. Stuart Vyse
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Most of us try to live rational lives. We try to make the best decisions we can based on the information we have… And if we’re thoughtful, we even try to be aware of common logical fallacies, and overcome our personal biases too. But is self-delusion ever useful?
Dr. Stuart Vyse, psychologist and Fellow for the Committee for Skeptical Inquiry, argues that it can be.
From self-fulfilling prophecies of optimism and pessimism, to the role of delusion in love and loss, Dr. Vyse explores what separates useful delusion from dangerous irrationality.
We also read about such questions as (and proposed answers to):
- Why is placebo effect stronger if we attach a ritual to it?
- Why are negative superstitions harder to shake than positive ones?
- Why do we tend to hold to the notion of free will, despite so much evidence for determinism?
The style of the book is conversational, and captivating from the start; a highly compelling read.
Bottom line: if you’ve ever felt yourself wondering if you are deluding yourself and if so, whether that’s useful or counterproductive, this is the book for you!
Click here to check out The Uses of Delusion, and optimize yours!
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‘Free birthing’ and planned home births might sound similar but the risks are very different
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The death of premature twins in Byron Bay in an apparent “wild birth”, or free birth, last week has prompted fresh concerns about giving birth without a midwife or medical assistance.
This follows another case from Victoria this year, where a baby was born in a critical condition following a reported free birth.
It’s unclear how common free birthing is, as data is not collected, but there is some evidence free births increased during the COVID pandemic.
Planned home births also became more popular during the pandemic, as women preferred to stay away from hospitals and wanted their support people with them.
But while free births and home births might sound similar, they are a very different practice, with free births much riskier. So what’s the difference, and why might people opt for a free birth?
What are home births?
Planned home births involve care from midwives, who are registered experts in childbirth, in a woman’s home.
These registered midwives work privately, or are part of around 20 publicly funded home birth programs nationally that are attached to hospitals.
They provide care during the pregnancy, labour and birth, and in the first six weeks following the birth.
The research shows that for women with low risk pregnancies, planned home births attended by competent midwives (with links to a responsive mainstream maternity system) are safe.
Home births result in less intervention than hospital births and women perceive their experience more positively.
What are free births?
A free birth is when a woman chooses to have a baby, usually at home, without a registered health professional such as a midwife or doctor in attendance.
Different terms such as unassisted birth or wild pregnancy or birth are also used to refer to free birth.
The parents may hire an unregulated birth worker or doula to be a support at the birth but they do not have the training or medical equipment needed to manage emergencies.
Women may have limited or no health care antenatally, meaning risk factors such as twins and breech presentations (the baby coming bottom first) are not detected beforehand and given the right kind of specialist care.
Why do some people choose to free birth?
We have been studying the reasons women and their partners choose to free birth for more than a decade. We found a previous traumatic birth and/or feeling coerced into choices that are not what the woman wants were the main drivers for avoiding mainstream maternity care.
Australia’s childbirth intervention rates – for induction or augmentation of labour, episiotomy (cutting the tissue between the vaginal opening and the anus) and caesarean section – are comparatively high.
One in ten women report disrespectful or abusive care in childbirth and some decide to make different choices for future births.
Lack of options for a natural birth and birth choices such as home birth or birth centre birth also played a major role in women’s decision to free birth.
Publicly funded home birth programs have very strict criteria around who can be accepted into the program, excluding many women.
In other countries such as the United Kingdom, Netherlands and New Zealand, publicly funded home births are easier to access.
It can be difficult to access home birth services in Australia.
Ink Drop/ShutterstockOnly around 200 midwives provide private midwifery services for home births nationally. Private midwives are yet to obtain insurance for home births, which means they are risking their livelihoods if something goes wrong and they are sued.
The cost of a home birth with a private midwife is not covered by Medicare and only some health funds rebate some of the cost. This means women can be out of pocket A$6-8,000.
Access to home birth is an even greater issue in rural and remote Australia.
How to make mainstream care more inclusive
Many women feel constrained by their birth choices in Australia. After years of research and listening to thousands of women, it’s clear more can be done to reduce the desire to free birth.
As my co-authors and I outline in our book, Birthing Outside the System: The Canary in the Coal Mine, this can be achieved by:
- making respectful care a reality so women aren’t traumatised and alienated by maternity care and want to engage with it
- supporting midwifery care. Women are seeking more physiological and social ways of birthing, minimising birth interventions, and midwives are the experts in this space
- supporting women’s access to their chosen place of birth and model of care and not limiting choice with high out-of-pocket expenses
- providing more flexible, acceptable options for women experiencing risk factors during pregnancy and/or birth, such as having a previous caesarean birth, having twins or having a baby in breech position. Women experiencing these complications experience pressure to have a caesarean section
- getting the framework right with policies, guidelines, education, research, regulation and professional leadership.
Ensuring women’s rights and choices are informed and respected means they’re less likely to feel they’re left with no other option.
Hannah Dahlen, Professor of Midwifery, Associate Dean Research and HDR, Midwifery Discipline Leader, Western Sydney University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Sesame Seeds vs Poppy Seeds – Which is Healthier?
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Our Verdict
When comparing sesame seeds to poppy seeds, we picked the poppy seeds.
Why?
It’s close, and they’re both very respectable seeds!
In terms of macros, their protein content is the same, while poppy seeds have a little less fat and more carbs, as well as slightly more fiber. A moderate win for poppy seeds on this one.
About that fat… The lipid profiles here see poppy seeds with (as a percentage of total fat, so notwithstanding that poppy seeds have a little less fat overall) more polyunsaturated fat and less saturated fat. Another win for poppy seeds in this case.
In the category of vitamins, poppy seeds contain a lot more vitamins B5 & E while sesame seeds contain notably more vitamins B3, B6 and choline. Marginal win for sesame this time.
When it comes to minerals, poppy seeds contain rather more calcium, phosphorus, potassium, and manganese, while sesame seeds contain more copper, iron, and selenium. Marginal win for poppies here.
Note: it is reasonable to wonder about poppy seeds’ (especially unwashed poppy seeds’) opiate content. Indeed, they do contain opiates, and levels do vary, but to give you an idea: you’d need to eat, on average, 1kg (2.2lbs) of poppy seeds to get the same opiate content as a 30mg codeine tablet.
All in all, adding up the wins in each section, this one’s a moderate win for poppy seeds, but of course, enjoy both in moderation!
Want to learn more?
You might like to read:
- Chia Seeds vs Flax Seeds – Which is Healthier?
- Sunflower Seeds vs Pumpkin Seeds – Which is Healthier?
- Hemp Seeds vs Flax Seeds – Which is Healthier?
Take care!
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Simple, 10-Minute Hip Opening Routine
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Hips Feeling Stiff?
If so, Flow with Adee’s video (below) has just the solution with a quick 10-minute hip-opening routine. Designed for intermediates but open to all, we love Adee’s work and recommend that you reach out to her to tell her what you’d like to see next.
Other Methods
If you’re a book lover, we’ve reviewed a fantastic book on reducing hip pain. Alternatively, learn stretching from a ballerina with Jasmine McDonald’s ballet stretching routine.
Otherwise, enjoy today’s video:
How was the video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!
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