1. Sunbathing

Solam, a researcher of vitamin D and a former professor of Southwest Medical College in the United States, revealed that if the skin turns red in the sun, the human body will synthesize 2, IU of vitamin D. However, the skin becomes red and swollen in the sun, which is not conducive to skin health.

Therefore, while protecting the skin, if you want to get vitamin D safely by sunbathing, you should go outdoors from 1 am to 2 pm every week, and let your hands, feet, arms and legs (about 25% of all skin) bask in the sun for 2-3 times, and the time should be controlled at 25-5% of the time needed to make your skin red, so that you can get 8-15 IU of vitamin D..

2. Salmon and egg yolk are rich in vitamin D

The higher the concentration of vitamin D in blood, the higher the intake frequency of vitamin D-rich foods such as mackerel, fish, seafood, milk and dairy products for adults. The early intake frequency of the elderly is higher. If you want to get 1IU of vitamin D through food, you need to ingest 1 egg yolks, 3g of salmon or 1 cups of milk respectively.

if vitamin d is only supplemented by food, you need to eat a lot of food. The combination of sun exposure and intake of seafood, eggs and dairy products can fully supplement vitamin D.

/iknow-pic.cdn.bcebos.com/e1fe9925bc315c6f6b1953383b1cb13485477c2"target="_blank"title=""class="ikqb_img_alink"> /iknow-pic.cdn.bcebos.com/e1fe9925bc315c6f6b1953383b1cb13485477c2? X-BCE-process = image% 2fresize% 2cm _ lfit% 2cw _ 6% 2ch _ 8% 2climit _ 1% 2fquality% 2cq _ 85% 2fformat% 2cf _ auto "esrc ="/n4/217/42/C167. People's Daily Online-There are three things that need to be done correctly to supplement the lack of vitamin D.