Method for increasing muscle mass and strength through administration of adenosine triphosphate

The present invention is directed to compositions having an effective amount of Adenosine Triphosphate ("ATP") sufficient to effect intracellular and extracellular concentrations of ATP in a mammal to improve anaerobic exercise capacity by increasing muscle size and/or strength and methods for using the same. Preferably, a gastric acid secretion inhibitory coating is applied to the effective amount of ATP in a manner that protects the ATP from degradation by gastric juices. ATP compositions of the present invention may be administered in nutraceutical or functional food dosage forms, including oral and non-oral delivery forms. In addition, the effective amount of ATP maybe combined with amino acids, botanicals, functional foods, herbals, nucleotides, nutraceuticals, nutrients, pharmaceuticals, proteins, and/or vitamins in an effort to enhance the targeted activity of the composition.