You can lose weight and improve your immunity by adjusting your diet and strengthening physical exercise. It is suggested that people who are puffy should not eat too much junk food every day and take whole grains as their staple food. You can eat vegetables and fruits properly, and don't overeat. It is recommended to eat every day, half full, but pay attention to balanced nutrition and not excessive dieting. In addition, we must strengthen physical exercise, and suggest aerobic exercise for more than 30 minutes every day.