2. Moreover, the iodine content in kelp is extremely high, which can play a good role in supplementing iodine. Milk is rich in calcium and protein. If milk and kelp are eaten together in daily life, it will not only have any adverse effects on human health, but also help the human body absorb various nutrients needed by the body. So in normal life, you can eat some milk and kelp in moderation, which will help you keep healthy.