First of all, grape juice is diuretic, tonic and tranquilizing, and strengthens the kidneys and liver.

Freshly squeezed fruit and vegetable juice on the human body has a very good help, so many people like to drink a cup of freshly squeezed fruit and vegetable juice in the morning on an empty stomach to promote the metabolism, but some people because of the empty stomach to drink grape juice feet weak, and even triggered gastric ulcers hospitalized, fruits and vegetables are most of the cold food, if you drink the person's physique is cold, the whole body is weak and prone to soft feet. Drinking fruit and vegetable juice after meals is more appropriate, if you want to drink on an empty stomach, it is recommended to use apples, carrots and other non-cold fruits and vegetables.

So it is recommended that grape juice should be consumed after meals to avoid drinking on an empty stomach.