Smile L-Glutamine Plus provides a combination of L-Glutamine and vitamin B1 in powder form. Glutamine is an amino acid that occurs naturally in the body, mainly in the muscles. Glutamine has many beneficial effects on the body. It is particularly important for the normal functioning of the intestine, as the cells of the intestinal mucosa regenerate using it as a primary source of energy. In addition, it helps maintain a healthy central nervous system. Inside the brain, glutamine can be converted into glutamic acid, an amino acid that supports brain function. It also increases levels of gamma-aminobutyric acid (GABA), which acts as a neurotransmitter in the body. Vitamin B1 contributes to: normal functioning of metabolic processes aimed at energy production normal functioning of the heart and nervous system normal psychological function Dosage: 5 grams of powder (1 measuring spoon). After intense exercise: 5-10 grams daily. Directions for use: Dissolve in water or fruit juice at least half an hour before any meal or before bedtime. Athletes: Dissolve 5 g of powder in protein drinks, water or fruit juice before exercise. An additional dose of 5 g can be taken before bedtime. Contraindications - Interactions: Do not take in case of hypersensitivity to any of the ingredients. Precautions: Do not exceed the recommended daily dose. Store in a cool, dry place, away from light and out of reach of children. Composition / Content per 5g: L-Glutamine: 4.99 g Vitamin B1 (thiamine): 2.2 mg