Should amino acids be taken before or after meals

Amino acid supplements are usually recommended to be taken after meals to help reduce gastrointestinal irritation and increase absorption rate. The specific time of taking should be adjusted according to the product type, personal physique, and doctor's advice. Amino acid supplements contain various essential nutrients for the human body, and taking them on an empty stomach may irritate the gastric mucosa and cause discomfort. After meals, gastric acid secretion increases, and the buffering effect of food can reduce the direct stimulation of amino acids on the gastrointestinal tract. Protein supplements mixed with food can delay gastric emptying time and allow amino acids to more fully contact the surface of the small intestine for absorption. Some special formula amino acids, such as branched chain amino acids, can promote muscle repair when taken within half an hour of exercise, but it is still recommended to take them with meals for the general population. For patients with digestive system diseases such as gastric ulcers or chronic gastritis, taking amino acids on an empty stomach may worsen mucosal damage. Patients with liver and kidney dysfunction need to strictly control the total amount of protein intake to avoid excessive metabolic burden. Some amino acids such as tryptophan have sedative effects, and taking them before bedtime may be more suitable for improving sleep problems. Antibiotics or specific medications should be taken at least two hours apart to prevent interactions from affecting their efficacy. When choosing amino acid supplements, attention should be paid to the ingredient list to avoid excessive intake of a single amino acid, which can lead to nutritional imbalance. Priority should be given to obtaining protein from natural foods such as fish, poultry, eggs, and milk in daily diet, and supplements should only be used as an auxiliary means when the diet is insufficient. Long term users are advised to regularly monitor liver and kidney function indicators, and adjust the dosage or discontinue use in a timely manner if discomfort such as bloating and diarrhea occurs. Special populations such as pregnant women, children, and postoperative patients must consult professional physicians before use.