It will gain weight. Low-fat milk is only low in fat, but it still has energy. After drinking it, you will replenish energy, and you will gain weight if you replenish energy.

Extended data:

The fat content of low-fat milk is about half that of fresh milk, and the range is 1.0%- 1.5%.

For adults, low-fat milk does not only rely on milk to supply energy, but often pays more attention to the high-quality protein contained in milk. Therefore, it is more desirable that milk has less fat and becomes low-fat skim milk. Recently, various low-fat and skim milk products have been put on the shelves of shopping malls and supermarkets.

Scientists have found that drinking at least four cups of low-fat milk a day can reduce the risk of heart disease. But Mark A Pereira says that not all dairy products are good for heart health.

Dairy products with high fat content, such as whole milk, will increase low-density lipoprotein cholesterol in the human body. In an interview with Reuters, he said that beneficial dairy products refer to those products whose fat content is below 2%, while the fat content in whole milk is around 4%. He also said that those who drink four cups of dairy products a day are on average 40% to 60% less likely to be obese.

Low-fat milk-Baidu encyclopedia