When you feel your energy levels hit a slump, you'll want a 'pick me up'. After extended periods of exercise, the energy reserves in your muscle tissue will be depleted. This is where an endurance orintated supplement can help out.

Your own endurance level will determine how long you can maintain exercise without getting fatigued to the point that you have to stop. So wether your goal be better endurance for lifting heavy weights or running a marathon, you'll need to have the right nutrition, exercise and supplement plan in place.

Endurance supplements may:

• Improve blood flow to muscle tissue
• Help clear away the build up of lactic acid, that can cause fatigue
• Support efficient oxygen intake

 Whereas protein is good for post workout recovery, carbohydrates are great for refueling your energy stores.