Good question! It does not for one reason. Energy needs vary by individual. David's Fibro-Q10 is designed to be taken 1-3 times per day for a max dose of 300 mg per the research done by Dr. Cordero on fibromyalgia patients. Even if you do not have fibro, 100 mg a day is a good starting dose. Plus CoQ10 is a great antioxidant!