L-tryptophan is an essential amino acid that plays a critical role in various biological processes. It is a precursor to several important molecules in the body, including serotonin, a neurotransmitter that regulates mood, sleep, and appetite, and melatonin, a hormone that controls sleep-wake cycles. L-tryptophan is also involved in the synthesis of niacin, also known as vitamin B3, which is important for energy metabolism. Since the human body cannot produce L-tryptophan on its own, it must be obtained through the diet. Common dietary sources include turkey, chicken, milk, cheese, yogurt, eggs, fish, peanuts, and soy products. Due to its role in serotonin production, L-tryptophan is often studied for its potential benefits in managing conditions like depression, anxiety, and sleep disorders. However, it is important to consume it in balanced amounts, as excessive intake can lead to adverse effects.
