Although fruit can provide a lot of nutrition, we should also pay attention to the amount of fruit. An apple a day is ok, but eating too much will lead to excess energy, because for example, a medium-sized red Fuji apple weighs about 250 grams, and the edible part accounts for 85%. It provides about 20 grams of sugar and 96 kilocalories, which is roughly equivalent to the energy provided by a bowl of rice.

Considering the types and contents of energy and nutrients, eating apples should reduce the amount of other snacks. If it is a cake or a small pile of French fries, it is most helpful for weight control.

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The greater the moisture content in food, the lower the calorie value. Conversely, the more dry goods, the higher the calorie value. For example, compared with different vegetables, vegetables with high moisture content have the lowest calories, such as wax gourd, cucumber and lettuce. And the heat is only 10~20 kcal/100g.

Comparatively speaking, sweet peas and beans are also considered as high-moisture foods, but they are a little more "dry", with a calorie of 30~50 kcal/100g; Starch-containing potatoes and yam have higher calories, reaching the level of 60-80 kcal/100g.

For fruits, vegetables, fruit juice, sweet drinks and other foods, the higher the carbohydrate, the higher the calorie. This kind of food is usually low in fat (except durian and avocado) and low in protein. Their main source of heat is carbohydrates (including sugar and starch), especially sugar. Therefore, the same kind of fruit, sweet varieties have higher calories than non-sweet varieties.

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