Sustained release of nutrients in vivo

A method of improving athletic performance and endurance comprising

• administering to an individual a composition comprising nutritional supplements and, compounds for sustained release of the nutritional supplements in vivo, wherein the nutritional supplements comprise carbohydrates, amino acids, and electrolytes;
• and,
• consuming the composition wherein the compounds for sustained release of the nutritional supplements in vivo release the nutritional supplements in effective amounts and concentrations over extended periods of time to increase exercise duration and cumulative power output potential by at least about 1% to about 50%, about 50% to about 100%, about 100% to about 500% or about 500% to about 1000%, increase burst energy duration and power output by at least about 1% to about 50%, about 50% to about 100%, about 100% to about 500% or about 500% to about 1000%, increase the number of effective burst events from about 1% to about 50%, about 50% to about 100%, about 100% to about 500% or about 500% to about 1000%, decreases the duration of recovery time between burst events by at least about 1% to about 50%, about 50% to about 100%, about 100% to about 500% or about 500% to about 1000%, when compared to a control with no nutritional supplement ingestion pre and during exercise;
• and,
• improving athletic performance and endurance.