The choice of a glass of water in the morning:
1. Plain water: the best choice for people with average physique to detoxify and slim down the lower abdomen
2. Salt water: suitable for those with constipation. It can speed up gastrointestinal motility and expel toxins
3. Lemonade: fashionable but impractical
4. Honey water: not suitable for drinking in the morning, more suitable before going to bed
5. Milk: Drinking milk on an empty stomach will pass through the intestines and cause nutrient loss
6. Juice, cola, etc.: the worst choice for the first glass of water in the morning
