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Why is Jiangjin the hometown of longevity?
China is a selenium-deficient country, but Jiangjin is a selenium-enriched area. The selenium content in the soil above moderate selenium is 90.2 1%, tea 63.64%, pepper 63.3%, rice 56%, beans 76.4% are selenium-enriched agricultural products, and 100% of fresh chickens, ducks and aquatic products are basically selenium-enriched. Shengken agriculture is located in Jiangjin, where selenium content is relatively high.