You can eat kelp for gastritis, but you should not consume too much of it. Many cases of gastritis are caused by excessive secretion of gastric acid, so eating kelp is good for the treatment of the disease. However, since kelp is a cold food, you should not consume too much of it at once, otherwise it will lead to a cold spleen and stomach, and even cause indigestion. When eating kelp with gastritis, make sure to cook and boil the kelp so that it will be more easily digested and absorbed by the body without adding to the burden on the digestive system. You can also stew the kelp with big bones, which can eliminate the coldness of the kelp and at the same time is more nutritious, which can achieve the effect of water and swelling, nourishing Yin and moistening dryness, which is helpful for the treatment of gastritis.