-Weakened resistance, because dieting will lead to unbalanced nutrition or insufficient nutrition intake in the body, resulting in poor physical strength and decreased resistance, which will make it very easy to catch a cold.

-For women, the most common cause of sudden weight loss in a short period of time is menstrual cycle disorder, and in severe cases, there will be no menstruation. Because of the improper way to lose weight, it will affect hormone metabolism and directly lead to menopause.

-Rapid weight loss will lead to insufficient nutrition intake, abnormal metabolism in the body, serious hair loss, yellow hair color, dry hair and so on. And the skin will deteriorate due to insufficient nutrition or abnormal hormone metabolism, become rough and prone to acne.