1. Foods with high selenium content include lobster, fish and some crustacean aquatic products. Followed by the heart, liver and kidney of animals.

2. Shepherd's purse, asparagus, peas, Chinese cabbage, pumpkin, onion, tomato and other vegetables also contain a certain amount of selenium.

3. Common flour, brown rice, seaweed, garlic, onion, asparagus and carrot all contain selenium.

4. Especially those that can enrich selenium, such as wheat malt, astragalus root, sedge, Zi Yuan, atriplex and alfalfa.

Selenium can also prevent human immunity from being low. Studies have also shown that some elderly people's immunity has returned to the level of young people after taking enzyme preparations containing 100 micrograms of selenium every day for 6 months. Researchers advise people to eat selenium-rich foods in moderation, such as sesame, spinach and garlic, asparagus, mushrooms, prawns, tuna and sardines.