Kelp's calorie per 100g is only half that of apple, and its fat content is extremely low. If you have a plate of sesame mixed with kelp or tofu mixed with kelp in front of you, don't be afraid. Put down the cucumbers and apples boldly, and you will be full and lose weight. The biggest function of laver is to eliminate leg edema. Porphyra is low in calories and fat, but rich in vitamins and protein. Porphyra and kelp make soup together, which is best for losing weight.