1. The daily calorie requirement of an adult male is 30 calories/kg (the daily calorie requirement of an adult female is 20-25 calories/kg), so the daily calorie requirement of a 70 kg male is 2 100 calories. When the daily calorie intake is less than this value, you can lose fat.

2. The heat required by the fitness crowd is increased by about 3 times when walking, and it can be increased by 10 ~ 20 times when exercising vigorously.

3. You can use the online calculator to calculate the daily total calorie demand when adding meals. Online calculator is more convenient and simple than using mathematical formula to calculate. To choose a reliable website, don't use calculators on blogs or other personal websites.