Zinc supplementation hugely reduces infection rates in the elderly.

But, is this from correcting a poor diet, or offsetting aging, or both?
As we age, our thymus gland, which is critical to immunity, shrinks dramatically.

But in old mice, zinc supplementation can regrow the thymus, with a full recovery of thymus function.

This could be why zinc helps human immunity in the elderly. sciencedirect.com/science/articl…
A number of different experimental treatments that regrow the thymus are all thought to involve zinc.

So it would appear that zinc supplementation as you get older could help maintain immune function and resistance to infections and cancer.

Zinc supplementation in "elderly" - average age 64 lol - men doubled their testosterone levels.
Zinc abolishes alcohol-induced leaky gut. Therefor zinc could be useful against autoimmune diseases, chronic fatigue, IBS, etc. journals.physiology.org/doi/full/10.11…

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