Nutritional supplements in sports and exercise second edition presents cutting edge information and is valuable to sports nutritionists exercise physiologists strength and conditioning personal . Nutritional supplements in sports and exercise second edition presents cutting edge information and is valuable to sports nutritionists exercise physiologists strength and conditioning personal trainers athletic trainers athletic coaches registered dietitians and college professional sport affiliates. In contrast the international society of sports nutrition issn concluded from its literature review that beta alanine supplements 4 6 g day consumed for at least 2 4 weeks can improve high intensity exercise performance that lasts over 60 seconds especially in time to exhaustion tasks however performance benefits are more modest . Nutritional supplements in sports and exercise second edition presents cutting edge information and is valuable to sports nutritionists exercise physiologists strength and conditioning personal trainers athletic trainers athletic coaches registered dietitians and college professional sport affiliates