Spermidine

The longevity finding is men who ate more of it dying later, never anyone swallowing a pill.

Also called Spermidine Trihydrochloride, Spermidine 3HCl, N-(3-aminopropyl)butane-1,4-diamine

The item

Three squares: proven in human trials. Two: a strong signal. One: early human data. Striped: the trials disagree.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.