Exercise is very important to burn off the extra calories and prevent tiredness. Go for a walk for about two hours after Iftar.
It is preferred to delay Suhour till before dawn, to make sure your body gets the maximum benefits from the nutrients of the Suhour meal and to also supply the body with energy and ease tiredness.
Eating Healthy during Ramadan: For you to get all the nutrients needed by the body, your meals should contain all the basic food groups (bread and grains, fruits and vegetables, meat and beans, milk and dairy products).
Drinking iced water to break your fast does not replenish your thirst but causes your blood vessels to contract and cause indigestion. For this reason, it is recommended to drink water at room temperature or slightly cold.
Water plays a significant role in weight reduction, because it helps to get rid of toxins and reduces the feeling of hunger. So try to drink small quantities of water throughout the night during Ramdan.
Eating sweets immediately after Iftar will increase the size of your stomach and cause a delay in digestion. It will also cause a fluctuation in the blood glucose level, which will lead to you craving for more sweets. That’s why, it is recommended to have it 2-3 hours after Iftar (after Taraweeh prayer).
(source Nestlé site)