Trehalose

Trehalose is a sugar. it appears to have therapeutic mechanisms by regulating protein unfolding and might be helpful to protect against Alzheimer's. It is not clear whether its low oral absorption in its intact form could negate any benefits of oral intake.

Also known as: -

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https://www.anti-agingfirewalls.com/2014/06/18/trehelose-a-natural-sugar-that-could-possibly-be-consumed-for-health-and-longevity/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3389826/