"The next new treatment for Alzheimer’s disease may be an already-existing drug, according to a team of researchers in Japan.

In a series of experiments, administering an oral dose of an amino acid called arginine, which is already prescribed to treat high blood pressure, was able to suppress the buildup of a protein associated with Alzheimer’s in mice, the scientists report in a new study published in the journal Neurochemistry International."

So what food has significant amounts of arginine?