1 g protein, 4 kcal carbohydrate and 9 kcal fat.

Fat calorie is the total calorie of fat, including saturated fat, unsaturated fat and so on.

But if both calories and fat calories are 300kcal, in fact, the amount absorbed by the body is similar. As long as they don't absorb too many calories, that is, eat in moderation, it won't have any bad influence on a person who is losing weight. Reference: Food and Environmental Hygiene Department, calories refer to the energy we take from food. Fat calories are calories from fat. In our diet, food contains fat, such as saturated fat, trans fat and monosaturated fat. When we eat food, we inevitably have to eat a certain amount of food. This fat also contains energy, so it generates heat. Besides fat, we can also get energy from carbohydrates (rice, noodles, pasta, bread), sugar and other foods. It usually writes down the total calories of each serving, which is the energy we get from one serving (for example, 100 kcal). Then the label will also indicate that the food contains 20 kilocalories of fat. That is, out of every 100 kcal of energy, 20 kcal comes from fat.

In order to lose weight, people should reduce their fat intake. However, our bodies also need fat (such as oil). I think it is more appropriate to distinguish different types of fat in food. Avoid foods containing tr fat, because these fats are very unhealthy and may even lead to heart disease.

Eat everything in moderation, and regular exercise should be the right way to lose weight. Excessive dieting can damage health and immune system. ,