Sometimes, getting an energy boost during the day is necessary. A lot of people look to a snack or drink to give it to them. Sugar, or carbohydrates give only short bursts of energy, and then there’s a downward, draining backlash.

Try some alternative energy sources like these: Go for a five minute walk. 
If you don’t have even 5 minutes to spare, just step outside and take a
minute to really look around and savor the day. Drink a large glass of
water. Do three minutes of deep breathing. Dance to a tune on the
radio. Take a short nap.

These are all non-caloric, but I warn you,
they may be habit forming!