Soak pot roast in vinegar and water for ... onions in the roast bag along with the roast. Cook for 1 hour or until meat is tender and thoroughly cooked.
1 Foods that are high in protein are often high in lysine. 2  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 (i.e., serotonin). Almost 90% of your bodyâs serotonin supply is located in the digestive system and blood platelets.
Although serotonin is manufactured in the brain, where it performs its primary functions, some 90% of our serotonin supply is found in the digestive tract and in blood platelets. 2. How is serotonin made? Serotonin is made via a unique biochemical conversion process. It begins with tryptophan, a building block to proteins.