Professor Kobayashi of Hokkaido University had six benign tumors grow on his colon when he was 43 years old, and after they were removed by surgery, tumors grew again and again in his body. It occurred to Prof. Kobayashi that kelp might be good for preventing colorectal tumors because it contains a lot of water-soluble food fiber. With a ray of hope, he tried to eat kelp cooked in wine. After eating the kelp for about a month, the laxative effect became very good, and after half a year, he no longer had bloody stools. He went to the hospital for a checkup, and to his surprise, the colon tumor disappeared completely.

How to make: about 200 grams of kelp (dry), 1 cup of sake (about 50 milliliters), 1 tablespoon of sugar, 1 tsp. of soy sauce. Wash and cut the kelp into inch pieces, add water and sake, and simmer slowly over low heat. After the kelp is softened, add granulated sugar and soy sauce. Eat about 20 grams a day.

According to recent research results, the food fiber contained in kelp has the effect of making "cancer cells commit suicide. Eating 3g-5g of dried kelp a day can effectively inhibit the development of cancer. It is also important to pay attention to the iodine content of kelp, as excessive iodine intake can reduce the function of the thyroid gland. Therefore, the intake of kelp should not exceed 20 grams a day.