Recent clinical studies show: The naturally occurring polyamine spermidine protects our brain
Spermidine, also known chemically as N-(3-aminopropyl) butane-1,4-diamine, is one of the naturally occurring polyamines. It occurs as a natural substance in amino acid metabolism of all living organisms and in all cells, and therefore also in a variety of plant and animal foods. Particularly rich food sources are wheat germ, but hard cheese, dried soybeans and some other foods also provide good amounts of spermidine. Recently, it was shown in mice that spermidine from food actually reaches the brain, thus crossing the blood-brain barrier.