From Newsgroup: sci.misc

Cheap Daily Supplement Appears to Boost Brain Functions in Older
People

What's good for your aging gut may also be good for your aging brain.

A first-of-its-kind study in twins found that taking daily protein and prebiotic supplements can improve memory test scores in people over
age 60.
...
The double-blind trial tested two inexpensive plant-fiber prebiotics
that are available over the counter in many countries.

One of the supplements was inulin, a dietary fiber in the fructan
class. The other, fructooligosaccharide (FOS), is a plant carbohydrate
often used as a natural low-calorie sweetener.

https://www.sciencealert.com/cheap-daily-supplement-appears-to-boost-brain-functions-in-older-people

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