Xiaoyan said to lose weight healthily.

Overnutrition means that the intake of carbohydrates and fats exceeds the consumption for a long time, which may include overnutrition caused by overeating or excessive intake of specific nutrients. It is converted into triglycerides by endocrine and stored in visceral surface and subcutaneous tissue, which leads to obesity. Due to the imbalance of modern people's dietary structure, increased calorie intake and overnutrition, coupled with the decrease of modern people's physical activity, the human body is too obese. Can not affect the normal intake of nutrition. Eating less or skipping meals will lead to the lack of other nutrients, and diet pills will have certain side effects. High-intensity physical exercise needs professional guidance, otherwise it may cause damage to the body and affect human health, so it is not suitable. We should take part in more appropriate sports activities and eat a normal and reasonable diet, so as to eat more fat and lose weight without affecting our health. It can be seen that D meets the meaning of the question.