



Melatonin is a hormone secreted by the pineal gland. As a supplement, it helps regulate sleep and the body's daily rhythmic cycle, making it ideal for jet lag. Melatonin is also an important antioxidant that acts as an effective scavenger of free radicals. Various factors can lower melatonin levels, such as inadequate dietary intake of its precursor tryptophan, low levels of serotonin, normal aging, insufficient exposure to natural light, and certain medications. Melatonin can support a healthy immune and stress response.