Hydrate your body. Drink at least 8-10 glasses of water a day. Water is the best drink as it doesn't contain any sugars that can add up to unnecessary calories. For a change, a lemon and honey drink can also instantly replenish your body's lost fluids and work as an energizer. Drink fluids even if you are not yet thirsty. Once you have the feeling of being thirsty means you are already dehydrated.