Black sesame seeds are good for preventing and relieving constipation. Black sesame seeds are rich in oil, which is good for lubricating the gastrointestinal tract and promoting peristalsis, so they are good for preventing and relieving constipation. Black sesame can also promote the improvement of kidney function, because from the point of view of Chinese medicine, black sesame into the kidney meridian, by nourishing the kidney meridian, for some waist and knee weakness, hair graying people have good effect to relieve the above symptoms. Black sesame is rich in oil and fat, so in terms of contraindications to consumption should be careful not to consume too much, otherwise it will cause excessive energy intake, resulting in a high incidence of overweight and obesity.