Raisins are dried fruits extracted from grapes and have the following functions:

1. Improve immunity: raisins are rich in vitamin C, which can improve immunity.

2. Replenish energy: Raisins are rich in carbohydrates, which helps to replenish the energy needed by the body.

3. Improve anemia: Raisins are rich in iron, which helps to increase hemoglobin content and improve anemia symptoms.

4. Promote digestion: Raisins are rich in cellulose, which can promote intestinal peristalsis and help digestion.

5. Antioxidants: Raisins are rich in polyphenols and have good antioxidant effect, which helps to protect body cells from free radical damage.

The nutritional value of raisins mainly comes from carbohydrates, cellulose, vitamin C, iron and polyphenols. Every 100g raisin contains 74.08g of carbohydrate, 3.74g of dietary fiber, 2.55mg of vitamin C, 0.88mg of iron/kloc-0 and 0.25g of polyphenol. Because raisins are high in sugar, they should be eaten in moderation, not in excess.