In case you're interested, John takes this formula for mitochondria support. He found it really helped his stamina and strength. Before, he could not sweep the front sidewalk without stopping multiple time to rest. He noticed gradually, that his stamina improved with this. He can now sweep the sidewalk without stopping.

Something to consider.

http://www.lef.org/Vitamins-Suppleme...FeRj7AodmUkAzQ