Disclosed are shelf-stable nutritional liquids comprising beta alanine, protein, and a carbohydrate system, wherein the shelf-stable nutritional liquid includes a molar ratio of the DE of the carbohydrate system to the lysine amino nitrogen of the protein of less than about 1.0 and or a molar ratio of the DE of the carbohydrate system to the beta alanine of less than about 3.0. The nutritional liquids are surprisingly stable over extended periods of time and exhibit minimal reduction in the concentration of beta alanine over shelf life.本發明揭示一種包含β丙胺酸、蛋白質及碳水化合物系統之儲藏穩定營養液，其中該儲藏穩定營養液包含小於約1.0的碳水化合物系統之DE對蛋白質之離胺酸胺基氮之莫耳比及/或小於約3.0的碳水化合物系統之DE對β丙胺酸之莫耳比。該等營養液在長時間內具有令人驚訝的穩定性且在儲藏期限內顯示最小的β丙胺酸濃度之降低。
