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Astaxanthin: Super-Antioxidant & Neuroprotectant
Plus: 5 easy back-strengthening exercises (no equipment needed)
The 10almonds Team
January 09, 2024
Sponsored by
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⏰ IN A RUSH?
Today’s 30-Second Summary
If you don’t have time to read the whole email today, here are some key takeaways:
Astaxanthin is a carotenoid found in microalgae, crustaceans that eat the algae, and things that eat the crustaceans.
It’s a super-antioxidant, neuroprotective agent, and appears to assist adult neurogenesis
It most probably is good for joints too (it’s certainly not bad), but we’d like to see more research done in humans, to say for sure on that one
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Read on to learn about these things and more…
👀 WATCH AND LEARN
5 Easy Back-Strengthening Exercises At Home (4:35)
Back-strengthening menu:
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💊 MAIN FEATURE
Think Pink For Brain Health!
Astaxanthin is a carotenoid that’s found in:
certain marine microalgae
tiny crustaceans that eat the algae
fish (and flamingos!) that eat the crustaceans
Yes, it’s the one that makes things pink.
But it does a lot more than that…
Super-antioxidant
Move over, green tea! Astaxanthin has higher antioxidant activity than most carotenoids. For example, it is 2–5 times more effective than alpha-carotene, lutein, beta-carotene, and lycopene:
We can’t claim credit for naming it a super-antioxidant though, because:
Grow new brain cells
Axtaxanthin is a neuroprotectant, but that’s to be expected from something with such a powerful antioxidant ability.
What’s more special to astaxanthin is that it assists continued adult neurogenesis (creation of new brain cells):
❝The unique chemical structure of astaxanthin enables it to cross the blood-brain barrier and easily reach the brain, where it may positively influence adult neurogenesis.
Furthermore, astaxanthin appears to modulate neuroinflammation by suppressing the NF-κB pathway, reducing the production of pro-inflammatory cytokines, and limiting neuroinflammation associated with aging and chronic microglial activation.
By modulating these pathways, along with its potent antioxidant properties, astaxanthin may contribute to the restoration of a healthy neurogenic microenvironment, thereby preserving the activity of neurogenic niches during both normal and pathological aging. ❞
That first part is very important, by the way! There are so many things that our brain needs, and we can eat, but the molecules are unable to pass the blood-brain barrier, meaning they either get wasted, or used elsewhere, or dismantled for their constituent parts. In this case, it zips straight into the brain instead.
See also:
(Probably) good for the joints, too
First, astaxanthin got a glowing report in a study we knew not to trust blindly:
…and breathe. What a title that was! But, did you catch why it’s not to be trusted blindly? It was down at the bottom…
❝Conflict of interest statement
NOVAREX Co., Ltd. funded the study. Valensa International provided the FlexPro MD® ingredients, and NOVAREX Co., Ltd. encapsulated the test products (e.g., both FlexPro MD® and placebo)❞
Studies where a supplement company funded the study are not necessarily corrupt, but they can certainly sway publication bias, i.e. the company funds a bunch of studies and then pulls funding from the ones that aren’t going the way it wants.
So instead let’s look at:
and
…which had no such conflicts of interest.
They agree that astaxanthin indeed does the things (attenuates joint inflammation & ameliorates cartilage damage).
However, they are animal studies (rats), so we’d like to see studies with humans to be able to say for sure how much it helps these things.
Summary of benefits
Based on the available research, astaxanthin…
is indeed a super-antioxidant
is a neuroprotective agent
also assists adult neurogenesis
is probably good for joints too
How much do I take, and is it safe?
A 2019 safety review concluded:
❝Recommended or approved doses varied in different countries and ranged between 2 and 24 mg.
We reviewed 87 human studies, none of which found safety concerns with natural astaxanthin supplementation, 35 with doses ≥12 mg/day.❞
In short: for most people, it’s very safe and well-tolerated. If you consume it to an extreme, you will likely turn pink, much as you would turn orange if you did the same thing with carrots. But aside from that, the risks appear to be minimal.
However! If you have a seafood allergy, please take care to get a supplement that’s made from microalgae, not one that’s made from krill or other crustaceans, or from other creatures that eat those.
Where can I get it?
We don’t sell it, but here’s an example product on Amazon, for your convenience 😎
Enjoy!
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🤫 A WORD TO THE WISE
 | How To Manage Hypertension (Naturally)There are factors that affect our blood pressure far more than salt does: |
📖 ONE-MINUTE BOOK REVIEW
Food for Thought: 50 Nutritious Recipes to Boost Your Memory Power – by Lorraine Perretta
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
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Wishing you the most well-informed start to the week,
The 10almonds Team