Usually, you can slice the sweet potato as a dish when eating, so as to reduce the intake of staple food. But you can't eat too many sweet potatoes, and the starch content of sweet potatoes is also very high. When starch is converted into sugar after digestion, it will get fat. The sweet potato diet requires that you must eat sweet potatoes at breakfast, and if you eat sweet potatoes at night, you will gain weight.
In addition, when you use the sweet potato diet, you should give up protein foods at the same time, which is commonly known as the separate eating method: you can lose weight easily by eating protein and starch separately.
Suggestions: reasonable diet and scientific exercise.