First of all, spinach and kelp are low-calorie foods. Eating a lot will not lead to excessive calories and reduce the body's intake of calories.

Secondly, spinach and kelp are both foods with strong satiety. After eating, you can feel full for a long time, and you are not easy to get hungry, which reduces the number of times you eat and the amount of food you eat in the next meal, and indirectly reduces the total intake.

Finally, spinach and kelp are foods with high nutritional value. Even if you eat more and reduce the intake of other high-calorie foods appropriately, it will not cause nutritional deficiency and endanger your health.