Following on from my article Serotonin Rich food – and a quick search – Turkey is promoted as a Serotonin Rich food this is in fact FALSE Source
“TRYPTOPHAN IN PROTEIN DO NOT CONVERT TO SEROTONIN For the BRAIN, the Amino Acid in meat cancels out the Tryptophan in meat.
-There is competition between the various amino acids for the transport system, so after the ingestion of a meal containing protein, the rise in the plasma level of the other large neutral amino acids will prevent the rise in plasma tryptophan from increasing brain tryptophan.
Another popular myth that is widespread on the Internet is that bananas improve mood because of their serotonin content. Although it is true that bananas contain serotonin, it does not cross the blood–brain barrier.
But equally the serontin in Bananas are high in 5-hydroxyindoleacetic acid which aids Urinary Tract Health