It is best to take 45 minutes to 1 hour, and properly replenish water before exercise, preferably 5 mouthfuls (normal mouth). Try not to replenish water during exercise, and then replenish water when the heart rate returns to normal after exercise. Don't feel too much.
Suggest the fastest and healthiest diet: eat a normal diet for breakfast and lunch (insist on not eating rice for a while, eat less staple food and more vegetables, focus on lean meat, and try not to eat yellow eggs), and don't eat a cucumber or only a fruit with less sugar for dinner, and don't be too full! (Avoid fried food and carbonated drinks)
I want to know what your goal is. This method must wish you success, not hungry! Does not affect your health!