Grape contains minerals such as calcium, potassium, phosphorus, iron, vitamins B 1, B2, B6, C, P, etc., and also contains many amino acids needed by human body. Grapes have health care effects on the liver and heart. It is a tonic for neurasthenia, fatigue and anemia. It's best not to spit skin and seeds when eating grapes. Eating grapes won't make you fat.