Goji Berries: Which Benefits Do They Really Have?
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Are Goji Berries Really A Superfood?
Goji berries are popularly considered a superfood, and sold for everything from anti-aging effects, to exciting benefits* that would get this email directed to your spam folder if we described them.
*We searched so you don’t have to: there doesn’t seem to be much research to back [that claim that we can’t mention], but we did find one paper on its “invigorating” benefits for elderly male rats. We prefer to stick to human studies where we can!
So how does the science stack up for the more mainstream claims?
Antioxidant effects
First and most obvious for this fruit that’s full of helpful polysaccharides, carotenoids, phenolic acids, and flavonoids, yes, they really do have strong antioxidant properties:
Immune benefits
Things that are antioxidant are generally also anti-inflammatory, and often have knock-on benefits for the immune system. That appears to be the case here.
For example, in this small-but-statistically-significant study (n=60) in healthy adults (aged 55–72 years)
❝The GoChi group showed a statistically significant increase in the number of lymphocytes and levels of interleukin-2 and immunoglobulin G compared to pre-intervention and the placebo group, whereas the number of CD4, CD8, and natural killer cells or levels of interleukin-4 and immunoglobulin A were not significantly altered. The placebo group showed no significant changes in any immune measures.
Whereas the GoChi group showed a significant increase in general feelings of well-being, such as fatigue and sleep, and showed a tendency for increased short-term memory and focus between pre- and post-intervention, the placebo group showed no significant positive changes in these measures.❞
“GoChi” here is a brand name for goji berries, and it’s not clear from the abstract whether the company funded the study:
Here’s another study, this time n=150, and ages 65–70 years old. This time it’s with a different brand (“Lacto-Wolfberry”, a milk-with-goji supplement drink) and it’s also unclear whether the company funded the study. However, taking the data at face value:
❝In conclusion, long-term dietary supplementation with Lacto-Wolfberry in elderly subjects enhances their capacity to respond to antigenic challenge without overaffecting their immune system, supporting a contribution to reinforcing immune defense in this population. ❞
In other words: it allowed those who took it to get measurably more benefit from the flu vaccinations that they received, without any ill effects.
Anticancer potential
This one’s less contentious (the immune benefits seemed very credible; we’d just like to see more transparent research to say for sure), so in the more clearly-evidenced case against cancer we’ll just drop a few quick studies, clipped for brevity:
- Goji berry (Lycium barbarum) inhibits the proliferation, adhesion, and migration of oral cancer cells
- A closer look at immunomodulatory properties of goji berries extract in human colon cancer cells
- Lycium barbarum polysaccharides induce apoptosis in human prostate cancer cells and inhibits prostate cancer growth
- Identification of goji berry cyclic peptides and anticervical carcinoma activity
- Antiproliferative effects of Lycium barbarum’s (goji berry) fractions on breast cancer Cell Lines
You get the idea: it helps!
Bonus benefit for the eyes
Goji berries also help against age-related macular degeneration. The research for this is in large part secondary, i.e. goji berries contain things x, y, and z, and then separate studies say that those things help against age-related macular degeneration.
We did find some goji-specific studies though! One of them was for our old friends the “Lacto-Wolfberry” people and again, wasn’t very transparent, so we’ll not take up extra time/space with that one here.
Instead, here’s a much clearer, transparent, and well-referenced study with no conflicts of interest, that found:
❝Overall, daily supplementation with Goji berry for 90d improves MPOD by increasing serum Z levels rather than serum L levels in early AMD patients. Goji berry may be an effective therapeutic intervention for preventing the progression of early AMD.❞
- MPOD = Macular Pigment Optical Density, a standard diagnostic tool for age-related macular degeneration
- AMD = Age-related Macular Degeneration
(that whole paper is very compelling reading, if you have time)
If you want a quicker read, we offer:
How To Avoid Age-Related Macular Degeneration
and also…
Where to get goji berries?
You can probably find them at your local health food store, if not the supermarket. However, if you’d like to buy them online, here’s an example product on Amazon for your convenience
Enjoy!
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Caffeine: Cognitive Enhancer Or Brain-Wrecker?
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The Two Sides Of Caffeine
We asked you for your health-related opinions on caffeine itself, not necessarily the coffee, tea, energy drinks, etc that might contain it.
We have, by the way previously written about the health effects of coffee and tea specifically:
As for our question about caffeine itself, though, we got the above-depicted, below-described, set of results:
- About 59% said “caffeine is a safe stimulant and cognitive enhancer”
- About 31% said “caffeine is a moderately safe recreational drug”
- About 8% said “caffeine’s addictive properties make it de facto bad”
- One (1) person said “caffeine will leave you a trembling exhausted wreck”
But what does the science say?
Caffeine is addictive: True or False?
True, though one will find occasional academics quibbling the definition. Most of the studies into the mechanisms of caffeine addiction have been conducted on rats, but human studies exist too and caffeine is generally considered addictive for humans, for example:
See also:
Notwithstanding its addictive status, caffeine is otherwise safe: True or False?
True-ish, for most people. Some people with heart conditions or a hypersensitivity to caffeine may find it is not safe for them at all, and for the rest of us, the dose makes the poison. For example:
❝Can too much caffeine kill you? Although quite rare, caffeine can be fatal in cases of overdose; such circumstances are generally not applicable to healthy individuals who typically consume caffeine via beverages such as tea or coffee.❞
this paper, by the way, also includes a good example of academics quibbling the definition of addiction!
Caffeine is a cognitive enhancer: True or False?
True, but only in the case of occasional use. If you are using it all the time, your physiology will normalize it and you will require caffeine in order to function at your normal level. To attain higher than that, once addicted to caffeine, would now require something else.
Read more: Caffeine: benefits and drawbacks for technical performance
Caffeine will leave you a trembling exhausted wreck: True or False?
True or False depending on usage:
- The famously moderate 3–5 cups per day will not, for most people, cause any such problems.
- Using/abusing it to make up for lost sleep (or some other source of fatigue, such as physical exhaustion from exertion), however, is much more likely to run into problems.
In the latter case, caffeine really is the “payday loan” of energy! It’ll give you an adrenal boost now (in return, you must suffer the adrenal dumping later, along with lost energy expended in the adrenaline surge), and also, the tiredness that you thought was gone, was just caffeine’s adenosine-blocking activities temporarily preventing you from being able to perceive the tiredness. So you’ll have to pay that back later, with interest, because of the extra time/exertion too.
Want to make caffeine a little more gentle on your system?
Taking l-theanine alongside caffeine can ameliorate some of caffeine’s less wonderful effects—and as a bonus, l-theanine has some nifty benefits of its own, too:
Enjoy!
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Cabbage vs Kale – Which is Healthier?
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Our Verdict
When comparing cabbage to kale, we picked the kale.
Why?
Here we go again, pitting Brassica oleracea vs Brassica oleracea. One species, many cultivars! Notwithstanding being the same species, there are important nutritional differences:
In terms of macros, kale has more protein, carbs, and fiber, and even has the lower glycemic index, not that cabbage is bad at all, of course. But nominally, kale gets the win on all counts in this category.
In the category of vitamins, cabbage has more of vitamins B5 and choline, while kale has more of vitamins A, B1, B2, B3, B6, B7, B9, C, E, and K. An easy win for kale!
When it comes to minerals, it’s even more decisive: cabbage is not higher in any minerals, while kale has more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, and zinc. Another clear win for kale.
Adding up the sections makes it very clear that kale wins the day, but we’d like to mention that cabbage was good in all of these metrics too; kale was just better!
Want to learn more?
You might like to read:
21 Most Beneficial Polyphenols & What Foods Have Them
Enjoy!
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52 Weeks to Better Mental Health – by Dr. Tina Tessina
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We’ve written before about the health benefits of journaling, but how to get started, and how to make it a habit, and what even to write about?
Dr. Tessina presents a year’s worth of journaling prompts with explanations and exercises, and no, they’re not your standard CBT flowchart things, either. Rather, they not only prompt genuine introspection, but also are crafted to be consistently uplifting—yes, even if you are usually the most disinclined to such positivity, and approach such exercises with cynicism.
There’s an element of guidance beyond that, too, and as such, this book is as much a therapist-in-a-book as you might find. Of course, no book can ever replace a competent and compatible therapist, but then, competent and compatible therapists are often harder to find and can’t usually be ordered for a few dollars with next-day shipping.
Bottom line: if undertaken with seriousness, this book will be an excellent investment in your mental health and general wellbeing.
Click here to check out 52 Weeks to Better Mental Health, and get on the best path for you!
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High-Protein Paneer
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Paneer (a kind of Desi cheese used in many recipes from that region) is traditionally very high in fat, mostly saturated. Which is delicious, but not exactly the most healthy.
Today we’ll be making a plant-based paneer that does exactly the same jobs (has a similar texture and gentle flavor, takes on the flavors of dishes in the same way, etc) but with a fraction of the fat (of which only a trace amount is saturated, in this plant-based version), and even more protein. We’ll use this paneer in some recipes in the future, but it can be enjoyed by itself already, so let’s get going…
You will need
- ½ cup gram flour (unwhitened chickpea flour)
- Optional: 1 tsp low-sodium salt
Method
(we suggest you read everything at least once before doing anything)
1) Whisk the flour (and salt, if using) with 2 cups water in a big bowl, whisking until the texture is smooth.
2) Transfer to a large saucepan on a low-to-medium heat; you want it hot, but not quite a simmer. Keep whisking until the mixture becomes thick like polenta. This should take 10–15 minutes, so consider having someone else to take shifts if the idea of whisking continually for that long isn’t reasonable to you.
3) Transfer to a non-stick baking tin that will allow you to pour it about ½” deep. If the tin’s too large, you can always use a spatula to push it up against two or three sides, so that it’s the right depth
3) Refrigerate for at least 10 minutes, but longer is better if you have the time.
4) When ready to serve/use, cut it into ½” cubes. These can be served/used now, or kept for about a week in the fridge.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
Take care!
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Food for Thought – by Lorraine Perretta
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What are “brain foods”? If you think for a moment, you can probably list a few. What this book does is better.
As well as providing the promised 50 recipes (which themselves are varied, good, and easy), Perretta explains the science of very many brain-healthy ingredients. Not just that, but also the science of a lot of brain-unhealthy ingredients. In the latter case, probably things you already knew to stay away from, but still, it’s a good reminder of one more reason why.
Nor does she merely sort things into brain-healthy (or brain-unhealthy, or brain-neutral), but rather she gives lists of “this for memory” and “this against depression” and “this for cognition” and “this against stress” and so forth.
Perhaps the greatest value of this book is in that; her clear explanations with science that’s simplified but not dumbed down. The recipes are definitely great too, though!
Bottom line: if you’d like to eat more for brain health, this book will give you many ways of doing so
Click here to check out Food for Thought, and upgrade your recipes!
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Good Health From Head To Toe
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It’s Q&A Day!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
This newsletter has been growing a lot lately, and so have the questions/requests, and we love that! 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: I am now in the “aging” population. A great concern for me is Alzheimers. My father had it and I am so worried. What is the latest research on prevention?
Very important stuff! We wrote about this not long back:
- See: How To Reduce Your Alzheimer’s Risk
- See also: Brain Food? The Eyes Have It!
(one good thing to note is that while Alzheimer’s has a genetic component, it doesn’t appear to be hereditary per se. Still, good to be on top of these things, and it’s never too early to start with preventive measures!)
Q: Foods that help build stronger bones and cut inflammation? Thank you!
We’ve got you…
For stronger bones / To cut inflammation
That “stronger bones” article is about the benefits of collagen supplementation for bones, but there’s definitely more to say on the topic of stronger bones, so we’ll do a main feature on it sometime soon!
Q: Veganism, staying mentally sharp, best exercises for weight gain?
All great stuff! Let’s do a run-down:
- Veganism? As a health and productivity newsletter, we’ll only be focusing veganism’s health considerations, but it does crop up from time to time! For example:
- Which Plant Milk? (entirely about such)
- Plant vs Animal Protein (mostly about such)
- Making Friends With Your Gut (You Can Thank Us Later) (discusses one benefit of such)
- Staying mentally sharp? You might like the things-against-dementia pieces we linked to in the previous response!
- It’s also worth noting that some kinds of dementia, such as Alzheimer’s, can begin the neurodegenerative process 20 years before symptoms show, and can be influenced by lifestyle choices 20 years before that, so it’s definitely never too early be on top of these things!
- Best exercises for weight gain? We’ll do a main feature one of these days (filled with good science and evidence), but in few words meanwhile: core exercises, large muscle groups, heavy weights, few reps, build up slowly. Squats are King.
Q: I am interested in the following: Aging, Exercise, Diet, Relationships, Purpose, Lowering Stress
You’re going to love our Psychology Sunday editions of 10almonds! You might like some of these…
- Relationships: Seriously Useful Communication Skills!
- Purpose: Are You Flourishing? (There’s a Scale)
- Managing stress: Lower Your Cortisol! (Here’s Why & How)
- Also about managing stress: Sunday Stress-Buster
- Also applicable to stress: How To Set Your Anxiety Aside
Q: I’d like to know more about type 2 diabetic foot problems
You probably know that the “foot problems” thing has less to do with the feet and more to do with blood and nerves. So, why the feet?
The reason feet often get something like the worst of it, is because they are extremities, and in the case of blood sugars being too high for too long too often, they’re getting more damage as blood has to fight its way back up your body. Diabetic neuropathy happens when nerves are malnourished because the blood that should be keeping them healthy, is instead syrupy and sluggish.
We’ll definitely do a main feature sometime soon on keeping blood sugars healthy, for both types of diabetes plus pre-diabetes and just general advice for all.
In the meantime, here’s some very good advice on keeping your feet healthy in the context of diabetes. This one’s focussed on Type 1 Diabetes, but the advice goes for both:
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