15 minutes is too little. It usually takes 30 minutes to achieve the fat burning effect. It is recommended to walk quickly or jog (I am insisting on walking fast, 1 hour a day, it is easy to stick to it). You can also jump rope for 15 minutes. Stop it soon! You also eat too little. The body's caloric intake is less than 1,000, which will affect metabolism. When you resume eating, you will rebound quickly. I eat a piece of whole wheat bread and a box of yogurt every morning, a fruit at 10 o'clock, 80 grams of rice and a plate of vegetables and fish or meat at noon, a fruit at 3 o'clock, the same as at noon in the evening, and I take a break after eating I go for a brisk walk when I’m young. I’m usually thirsty when I come back, so I drink yogurt (100 grams, medium-fat). In this way, I lost 1 kilogram in two days. I’m now 170, 55 kilograms, and the goal is 50 kilograms. Let’s work hard together