A Tale Of Two Cinnamons
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Cinnamon’s Health Benefits (But Watch Out!)
Cinnamon is enjoyed for its sweet and punchy flavor. It also has important health properties!
Let’s take a look at the science…
A Tale Of Two Cinnamons
In your local supermarket, there is likely “cinnamon” and if you’re lucky, also “sweet cinnamon”. The difference between these is critical to understand before we continue:
“Cinnamon” = Cinnamomum cassia or Cinnamomum aromaticum. This is cheapest and most readily available. It has a relatively high cinnamaldehyde content, and a high coumarin content.
“Sweet cinnamon” Cinnamomum verum or Cinnamomum zeylanicum. It has a lower cinnamaldehyde content, and/but a much lower (almost undetectable) coumarin content.
You may be wondering: what’s with the “or” in both of those cases? Each simply has two botanical names in use. It’s inconvenient and confusing, but that’s how it is.
Great! What’s cinnamaldehyde and what’s coumarin?
Cinnamaldehyde is what gives cinnamon its “spice” aspect; it’s strong and fragrant. It also gives cinnamon most of its health benefits.
As a quick aside: it’s also used as the flavoring element in cinnamon flavored vapes, and in that form, it can cause health problems. So do eat it, but we recommend not to vape it.
Coumarin is toxic in large quantities.
The recommended safe amount is 0.1mg/kg, so you could easily go over this with a couple of teaspoons of cassia cinnamon:
Toxicology and risk assessment of coumarin: focus on human data
…while in Sweet/True/Ceylon cinnamon, those levels are almost undetectable:
Medicinal properties of ‘true’ cinnamon (Cinnamomum zeylanicum): a systematic review
If you have a cinnamon sensitivity, it is likely, but not necessarily, tied to the coumarin content rather than the cinnamaldehyde content.
Summary of this section before moving on:
“Cinnamon”, or cassia cinnamon, has about 50% stronger health benefits than “Sweet Cinnamon”, also called Ceylon cinnamon.
“Cinnamon”, or cassia cinnamon, has about 250% stronger health risks than “Sweet Cinnamon”, also called Ceylon cinnamon.
The mathematics here is quite simple; sweet cinnamon is the preferred way to go.
The Health Benefits
We spent a lot of time/space today looking at the differences. We think this was not only worth it, but necessary. However, that leaves us with less time/space for discussing the actual benefits. We’ll summarize, with links to supporting science:
“Those three things that almost always go together”:
Heart and blood benefits:
- Reduces triglyceride levels
- Reduces high blood pressure
- Reduces insulin insensitivity
- Reduces fasting blood sugar levels
Neuroprotective benefits:
The science does need more testing in these latter two, though.
Where to get it?
You may be able to find sweet cinnamon in your local supermarket, or if you prefer capsule form, here’s an example product on Amazon
Enjoy!
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Pine Nuts vs Macadamia Nuts – Which is Healthier?
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Our Verdict
When comparing pine nuts to macadamias, we picked the pine nuts.
Why?
In terms of macros, it’s subjective depending on what you want to prioritize; the two nuts are equal in carbs, but pine nuts have more protein and macadamias have more fiber. We’d generally prioritize the fiber, which so far would give macadamias a win in this category, but if you prefer the protein, then consider it pine nuts. Next, we must consider fats; macadamias have slightly more fat, and of which, proportionally more saturated fat, resulting in 3x the total saturated fat compared to pine nuts, gram for gram. With this in mind, we consider this category a tie or a marginal nominal win for pine nuts.
In the category of vitamins, pine nuts have more of vitamins A, B2, B3, B9, E, K, and choline, while macadamias have more of vitamins B1, B5, B6, and C. A clear win for pine nuts this time, especially with pine nuts having more than 17x the vitamin E of macadamias.
When it comes to minerals, pine nuts have more copper, iron, magnesium, manganese, phosphorus, potassium, and zinc, while macadamias have more calcium and selenium. Another easy win for pine nuts.
In short, enjoy either or both (diversity is good), but pine nuts are the healthier by most metrics.
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts
Enjoy!
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Red Bell Peppers vs Tomatoes – Which is Healthier?
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Our Verdict
When comparing red bell peppers to tomatoes, we picked the peppers.
Why?
In terms of macronutrients, these two fruits-that-get-used-as-vegetables are similar in most respects; they’re mostly water, negligible protein and fat, similar amounts of carbs, even a similar carb breakdown (mostly fructose and glucose). One thing that does set them apart is that peppers* have about 2x the fiber, which difference results in peppers having the lower Glycemic Index—though tomatoes are quite low in GI too.
*for brevity we’re just going to write “peppers”, but we are still talking about sweet red bell peppers throughout. This is important, as different color peppers have different nutrient profiles.
In the category of vitamins, peppers have much more of vitamins A, B1, B2, B3, B5, B6, B9, C, and E. In contrast, tomatoes have more vitamin K. An easy win for peppers.
When it comes to minerals, the margins are narrower, but peppers have more iron, zinc, and selenium, while tomatoes have more calcium and copper. They’re approximately equal on other minerals they both contain, making this category a slight (3:2) win for peppers.
As for phytochemical benefits, both are good sources of lycopene (both better when cooked) and other carotenes (for example lutein), and both have an array of assorted flavonoids.
All in all, a win for peppers, but both are great!
Want to learn more?
You might like to read:
- Brain Food? The Eyes Have It!
- Bell Peppers: A Spectrum Of Specialties
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
Take care!
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From straight to curly, thick to thin: here’s how hormones and chemotherapy can change your hair
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Head hair comes in many colours, shapes and sizes, and hairstyles are often an expression of personal style or cultural identity.
Many different genes determine our hair texture, thickness and colour. But some people’s hair changes around the time of puberty, pregnancy or after chemotherapy.
So, what can cause hair to become curlier, thicker, thinner or grey?
Curly or straight? How hair follicle shape plays a role
Hair is made of keratin, a strong and insoluble protein. Each hair strand grows from its own hair follicle that extends deep into the skin.
Curly hair forms due to asymmetry of both the hair follicle and the keratin in the hair.
Follicles that produce curly hair are asymmetrical and curved and lie at an angle to the surface of the skin. This kinks the hair as it first grows.
The asymmetry of the hair follicle also causes the keratin to bunch up on one side of the hair strand. This pulls parts of the hair strand closer together into a curl, which maintains the curl as the hair continues to grow.
Follicles that are symmetrical, round and perpendicular to the skin surface produce straight hair.
Each hair strand grows from its own hair follicle.
Mosterpiece/ShutterstockLife changes, hair changes
Our hair undergoes repeated cycles throughout life, with different stages of growth and loss.
Each hair follicle contains stem cells, which multiply and grow into a hair strand.
Head hairs spend most of their time in the growth phase, which can last for several years. This is why head hair can grow so long.
Let’s look at the life of a single hair strand. After the growth phase is a transitional phase of about two weeks, where the hair strand stops growing. This is followed by a resting phase where the hair remains in the follicle for a few months before it naturally falls out.
The hair follicle remains in the skin and the stems cells grow a new hair to repeat the cycle.
Each hair on the scalp is replaced every three to five years.
Each hair on the scalp is replaced every three to five years.
Just Life/ShutterstockHormone changes during and after pregnancy alter the usual hair cycle
Many women notice their hair is thicker during pregnancy.
During pregnancy, high levels of oestrogen, progesterone and prolactin prolong the resting phase of the hair cycle. This means the hair stays in the hair follicle for longer, with less hair loss.
A drop in hormones a few months after delivery causes increased hair loss. This is due to all the hairs that remained in the resting phase during pregnancy falling out in a fairly synchronised way.
Hair can change around puberty, pregnancy or after chemotherapy
This is related to the genetics of hair shape, which is an example of incomplete dominance.
Incomplete dominance is when there is a middle version of a trait. For hair, we have curly hair and straight hair genes. But when someone has one curly hair gene and one straight hair gene, they can have wavy hair.
Hormonal changes that occur around puberty and pregnancy can affect the function of genes. This can cause the curly hair gene of someone with wavy hair to become more active. This can change their hair from wavy to curly.
Researchers have identified that activating specific genes can change hair in pigs from straight to curly.
Chemotherapy has very visible effects on hair. Chemotherapy kills rapidly dividing cells, including hair follicles, which causes hair loss. Chemotherapy can also have genetic effects that influence hair follicle shape. This can cause hair to regrow with a different shape for the first few cycles of hair regrowth.
Your hair can change at different stages of your life.
Igor Ivakhno/ShutterstockHormonal changes as we age also affect our hair
Throughout life, thyroid hormones are essential for production of keratin. Low levels of thyroid hormones can cause dry and brittle hair.
Oestrogen and androgens also regulate hair growth and loss, particularly as we age.
Balding in males is due to higher levels of androgens. In particular, high dihydrotestosterone (sometimes shortened to DHT), which is produced in the body from testosterone, has a role in male pattern baldness.
Some women experience female pattern hair loss. This is caused by a combination of genetic factors plus lower levels of oestrogen and higher androgens after menopause. The hair follicles become smaller and smaller until they no longer produce hairs.
Reduced function of the cells that produce melanin (the pigment that gives our hair colour) is what causes greying.
Theresa Larkin, Associate professor of Medical Sciences, University of Wollongong
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Reishi Mushrooms: Which Benefits Do They Really Have?
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Reishi Mushrooms
Another Monday Research Review, another mushroom! If we keep this up, we’ll have to rename it “Mushroom Monday”.
But, there’s so much room for things to say, and these are fun guys to write about, as we check the science for any spore’ious claims…
Why do people take reishi?
Popular health claims for the reishi mushroom include:
- Immune health
- Cardiovascular health
- Protection against cancer
- Antioxidant qualities
- Reduced fatigue and anxiety
And does the science agree?
Let’s take a look, claim by claim:
Immune health
A lot of research for this has been in vitro (ie, with cell cultures in labs), but promising, for example:
Immunomodulating Effect of Ganoderma lucidum (Lingzhi) and Possible Mechanism
(that is the botanical name for reishi, and the Chinese name for it, by the way)
That’s not to say there are no human studies though; here it was found to boost T-cell production in stressed athletes:
Cardiovascular health
Here we found a stack of evidence for statistically insignificant improvements in assorted measures of cardiovascular health, and some studies where reishi did not outperform placebo.
Because the studies were really not that compelling, instead of taking up room (and your time) with them, we’re going to move onto more compelling, exciting science, such as…
Protection against cancer
There’s a lot of high quality research for this, and a lot of good results. The body of evidence here is so large that even back as far as 2005, the question was no longer “does it work” or even “how does it work”, but rather “we need more clinical studies to find the best doses”. Researchers even added:
❝At present, lingzhi is a health food supplement to support cancer patients, yet the evidence supporting the potential of direct in vivo anticancer effects should not be underestimated.❞
Check it out:
Anticancer effects of Ganoderma lucidum: a review of scientific evidence
Just so you know we’re not kidding about the weight of evidence, let’s drop a few extra sources:
- Ganoderma lucidum: a rational pharmacological approach to surmount cancer
- Ganoderma lucidum as an anti-cancer agent
- Extract from Ganoderma lucidum suppresses cervical cancer cell malignancy
- Ganoderma lucidum spore oil induces apoptosis of breast cancer cells
- Ganoderma lucidum enhances carboplatin chemotherapy effect
- Ganoderma lucidum inhibits prostate cancer cell migration
- Ganoderma lucidum fruiting body extracts inhibit colorectal cancer
- Inhibitory activity of medicinal mushroom Ganoderma lucidum on colorectal cancer
- Ganoderma lucidum (reishi mushroom) for cancer treatment
By the way, we shortened most of those titles for brevity, but almost all of the continued with “by” followed by a one-liner of how it does it.
So it’s not a “mysterious action” thing, it’s a “this is a very potent medicine and we know how it works” thing.
Antioxidant qualities
Here we literally only found studies to say no change was found, one that found a slight increase of antioxidant levels in urine. It’s worth noting that levels of a given thing (or its metabolites, in the case of some things) in urine are often quite unhelpful regards knowing what’s going on in the body, because we get to measure only what the body lost, not what it gained/kept.
So again, let’s press on:
Reduced fatigue and anxiety
Most of the studies for this that we could find pertained to health-related quality of life for cancer patients specifically, so (while they universally give glowing reports of reishi’s benefits to health and happiness of cancer patients), that’s a confounding factor when it comes to isolating its effects on reduction of fatigue and anxiety in people without cancer.
Here’s one that looked at it in the case of reduction of fatigue, anxiety, and other factors, in patients without cancer (but with neurathenia), in which they found it was “significantly superior to placebo with respect to the clinical improvement of symptoms”.
Summary:
- Reishi mushroom’s anti-cancer properties are very, very clear
- There is also good science to back immune health claims
- It also has been found to significantly reduce fatigue and anxiety in unwell patients (we’d love to see more studies on its benefits in otherwise healthy people, though)
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How Not to Age – by Dr. Michael Greger
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First things first: it’s a great book, and it’s this reviewer’s favorite of Dr. Greger’s so far (for posterity: it’s just been published and this reviewer has just finished reading the copy she got on pre-order)
Unlike many popular physician authors, Dr. Greger doesn’t rehash a lot of old material, and instead favours prioritizing new material in each work. Where appropriate, he’ll send the reader to other books for more specific information (e.g: you want to know how to avoid premature death? Go read How Not To Die. You want to know how to lose weight? How Not To Diet. Etc).
In the category of new information, he has a lot to offer here. And with over 8,000 references, it’s information, not conjecture. On which note, we recommend the e-book version if that’s possible for you, for three reasons:
- It’s possible to just click the references and be taken straight to the cited paper itself online
- To try to keep the book’s size down, Dr. Greger has linked to other external resources too
- The only negative reviews on Amazon, so far, are people complaining that the print copy’s text is smaller than they’d like
For all its information-density (those 8,000+ references are packed into 600ish pages), the book is very readable even to a lay reader; the author is a very skilled writer.
As for the content, we can’t fit more than a few sentences here so forgive the brevity, but we’ll mention that he covers:
- Slowing 11 pathways of aging
- The optimal anti-aging regimen according to current best science
- Preserving function (specific individual aspects of aging, e.g. hearing, sight, cognitive function, sexual function, hair, bones, etc)
- “Dr. Greger’s Anti-Aging Eight”
In terms of “flavor” of anti-aging science, his approach can be summed up as: diet and lifestyle as foundation; specific supplements and interventions as cornerstones.
Bottom line: this is now the anti-aging book.
Click here to check out How Not To Age, and look after yourself with the best modern science!
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How Are You, Really? And How Old Is Your Heart?
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How Are You, Really? The Free NHS Health Test
We took this surprisingly incisive 10-minute test from the UK’s famous National Health Service—the test is part of the “Better Health” programme, a free-to-all (yes, even those from/in other countries) initiative aimed at keeping people healthy enough to have less need of medical attention.
As one person who took the test wrote:
❝I didn’t expect that a government initiative would have me talking about how I need to keep myself going to be there for the people I love, let alone that a rapid-pace multiple-choice test would elicit these responses and give personalized replies in turn, but here we are❞
It goes beyond covering the usual bases, in that it also looks at what’s most important to you, and why, and what might keep you from doing the things you want/need to do for your health, AND how those obstacles can be overcome.
Pretty impressive for a 10-minute test!
Is Your Health Above Average Already? Take the Free 10-minute NHS test now!
How old are you, in your heart?
Poetic answers notwithstanding (this writer sometimes feels so old, and yet also much younger than she is), there’s a biological answer here, too.
Again free for the use of all*, here’s a heart age calculator.
*It is suitable for you if you are aged 30–95, and do not have a known complicating cardiovascular disease.
It will ask you your (UK) postcode; just leave that field blank if you’re not in the UK; it’ll be fine.
How Old Are You, In Your Heart? Take the Free 10-minute NHS test now!
(Neither test requires logging into anything, and they do not ask for your email address. The tests are right there on the page, and they give the answers right there on the page, immediately)
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