A Brain Serotonin Percursor Product Info: Serotonin, an important brain neurotransmitter, is key in the regulation of appetite, mood, and melatonin production. The presence of serotonin in the brain is associated with a balanced emotional state. By decreasing the activity of certain excitatory hormones, including dopamine and noradrenaline. Serotonin also acts as a satiety signal in the brain, thereby naturally regulating food intake. Additionally, as a precursor of melatonin, serotonin is involved in regulating sleep patterns. Serotonin is unable to cross the blood-brain barrier and is therefore synthesized in the brain. Tryptophan, an essential amino acid, is a precursor for the synthesis of serotonin. Tryptophan crosses the blood-brain barrier and is converted to L-5-Hydroxytryptophan (5-HTP), which in turn is converted into serotonin. Unfortunately, tryptophan faces many obstacles during its journey into brain tissue. First, dietary intake directly affects body levels of tryptophan, as the body cannot produce it endogenously. High protein diets often provide greater amounts of tryptophan, yet higher carbohydrate diets appear to enhance tryptophan uptake into the brain. Secondly, tryptophan must compete with other amino acids for entry into the brain. Finally, tryptophan may be taken up by other tissues for protein or niacin synthesis, and is not exclusively for use by the brain. Nutritional Facts:
Serving Size: One (1) Vegetarian Capsule
Servings Per Container: 100
Amount Per Serving %DV: L-5-Hydroxytryptophan (L-5-HTP) 50 mg **
** Daily Value Not Established. Percent Daily Values are based on a 2,000 calorie diet. Ingredients: Cellulose and Vegetable Stearate. Directions: As a dietary supplement, adults take One (1) to Two (2) capsules daily, or as directed by physician. Store in a cool, dry place. KEEP OUT OF REACH OF CHILDREN.