What's cool about Astaxanthin is that it was never really available as a supplement until recently thanks to advancements in science so it's relatively new in terms of supplements or vitamins and it's a source of what one would find in crabs, salmon, red lobster or other fish and food with high antioxidant properties for the Heart and Liver..
Remember the advice to eat a variety of colours when it comes to fruit and veg?
That covers it.
Of course they're always gonna prioritise mentioning food sources that involve big money, like dairy and seafood.
When you look at say the diet of some who live in Greece in mountains, some people live to 100+ years and many attribute that to their diet and goat cheese being one of those factors.....
I'd put that down to cleaner livin' bro'.
Japan has one of the oldest population on average compared to other countries that get to live long and healthy lives and cognitive abilities ...... When you look at Japanese diet a lot of the food is heavy in Astaxanthin...
I don't know what "the intermanet" says, but back in the day we put that down to the fact that Okinawa's hills / mountains were rich in coral skeletons, which, as the rain worked its way down through them, imparted a broad spectrum of minerals into the water.
Not sure what other populations have longer lives on average than Greeks in Mountains or Japanese Rural folks on average but there has to be something in the diet as well as exercise I imagine that explains for it aside from genetic factors too
Consider the Hunzas. Again, this is from pre-internet days:
Lived on-average to over 130.
Smoked home-made cigars and drank tea with a blob of butter in it all day.
Critically (see the pattern here?), the water they drank was known as glacial milk. Literally white-coloured due to all the minerals imparted by the rocks (they lived in the mountains).
Also consider Dr. Joel Wallach. He post-mortem dissected 430 species of animals back in the day and claimed that the common denominator AFA cause-of-death was concerned was, you guessed it, mineral deficiency.
I was all over diet by the time I was 15 and if I've learned one thing it's that peeps don't wanna know about it. Absolutely-true diet as-per our design is NOT convenient and peeps want to pop pills instead, hence why I gave up issuing dietary advice decades ago.
Make of all this what you will. I'll say this 'though, and I didn't know this 'til a long time after I figured it all out, the 29th verse of the Bible, which was the most-comprehensive manual of how to live according to design that I know of, written by the designer (duh), deemed it important-enough to provide the instructions on the first page.
Food(!) for thought.