Eating watermelon seeds without spitting is easy to cause disease. Watermelon seeds are hard and difficult to digest. Eating a large number of watermelon seeds will gradually gather together with intestinal peristalsis, leading to constipation, abdominal distension and even intestinal obstruction and appendicitis. The hardness of watermelon seeds is similar to that of cruciferous roots, and also similar to that of relatively tough red meat. So the effect of swallowing on the stomach is probably not great. It seems that I read from a fashion magazine that watermelon seeds are cool and clear.
It seems that the vitamin content is also very rich.
Watermelon seeds have the effect of clearing away lung heat and resolving phlegm, and have an auxiliary effect on coughing up phlegm and hemoptysis.
Watermelon seeds are rich in oil and have the function of invigorating stomach and relaxing bowels. When you have no appetite or constipation, you might as well eat some melon seeds and the like.
It contains unsaturated fatty acids, which can lower blood pressure and help prevent arteriosclerosis. It is a snack suitable for patients with hypertension.