Foods rich in vitamin D: cod liver oil, deep-sea fish oil, animal liver, salmon and milk;

Fruits and vegetables: cherry, guava, red pepper, yellow pepper, persimmon, strawberry, orange, cabbage, cauliflower, kiwi, egg, mushroom and shrimp.

Plant food contains almost no vitamin D, and VD can also come from its own synthesis.

Get more sunshine and receive ultraviolet radiation.