Applied Nutrition Carb X improves the absorption of carbohydrates and other nutrients in the digestive tract. It increases the absorption of amino acids, glucose, creatine and essential fatty acids. AstraGin also helps promote gut health and improve immune system function. Features of Applied Nutrition Carb X A carbohydrate-rich product that fuels during exercise and aids in post-workout recovery. It also contains 50mg of AstraGin which is a quick source of energy. Carb-X can be used before, during, and after exercise and is suitable for vegans, vegetarians, and gluten-free.