How do you  naturally produce serotonin?
 Foods that are high in protein are often high in lysine. However, too much protein may interfere with tryptophan in the bloodstream, an important precursor to serotonin. 3 Lysine-rich foods include meat, cheese, fish, nuts, eggs, soybeans, spirulina, and fenugreek.erotonin is a neurotransmitter, or chemical in your body that relays messages to your brain. The brain produces serotonin by combining tryptophan hydroxylase and tryptophan to form 5-hydroxytryptamine (serotonin). 