Water, water, water!!
You've heard it before, but drink those 8 8-ounce glasses of water every day. The energy burning process of metabolism needs water to work effectively.
Get enough B vitamins.
Among supplements, if you are suffering from flagging energy, you need to make sure that you are getting enough B vitamins. Vitamin B-12 in particular is one that is essential for energy. To ensure you're getting enough B vitamins, consider taking a B complex, plus a separate sublingual B-12. Another important vitamin for fatigue isVitamin B-1, also known as thiamine.
Try a supplement for fatigue.
Another type of supplement useful for fatigue is in the area of substances that the body naturally produces for energy production. Supplements in this category include:
Co-enzyme Q10, also known as CoQ10, which supplies energy to muscles
NADH (Nicotinamide Adenine Dinucleotide) which helps cells convert food into energy