Sunbathing 12 hours at noon to absorb the most vitamin D

The body absorbs vitamin D best when the sun is standing, about 12pm and sunbathing at 9-10am.

Sharing the day of the World D vitamin 2 November , Dr. Ho Pham Thuc Lan, Head of the Joint Hospital of 115 People's Hospital in Ho Chi Minh City, said the time when the body absorbs vitamin D is most effective when the sun stands. . The longer the shadow falls under the sun, the less effective it is to absorb vitamin D. Therefore sunbathing should be done at 12pm. However, if you are exposed to the sun this time frame will increase the rate of skin cancer. Therefore the latest recommendation is to sunbathe on 9-10am and 15-16pm.

" Every day, just need 5-10 minutes of sun exposure to ensure enough vitamin D, so long-term exposure will harm the skin," the female doctor received the UNESCO award with many international publications in the field. joint bones said. If you are in the sun without the recommended time, you should choose the time when the ball is shorter than your body length and dry for about 15 minutes.

The time of vitamin D absorption is best at 12 noon.(Photo: heath fitness).

Dr. Vo Xuan Son, who specializes in spinal column - spinal cord, said that this point of view may initially be a concern, but has been verified and published by leading scientists. Previously doctors always advised sunbathing as soon as possible to avoid the harmful effects of ultraviolet rays.The current view is that you should take a late sunbathing and just a few minutes is enough. "This discovery needs more time to update doctors and make adjustments in the community," Dr. Son said.

An estimated one-third of the world's population lacks vitamin D. Dr. Lan said Vietnam is a tropical country but the rate of vitamin D deficiency is still very high. Adequate vitamin D supplementation can reduce the risk of death from colorectal cancer, a 30% reduction in the risk of high blood pressure and diseases such as diabetes, heart disease, infection .

Vitamin D deficiency can easily lead to risk of osteoporosis and fracture, risk of cardiovascular disease, diabetes, cancer, premature aging, infertility, and pregnant women who are prone to premature birth, low birth weight . Many establishments Vietnamese health has tested to assess the lack or sufficient vitamin D of each person. In case of vitamin D deficiency less than 20 ng / ml, treatment must be done. Obese, older people with a history of falls, less exposure to the sun, a habit of covering when going out, using sunscreen, using prolonged corticosteroids, kidney failure, liver failure, pregnant women, Breastfeeding . are recommended for screening for vitamin D.

Vitamin D is a fat-soluble steroid hormone precursor, with two important forms: vitamin D2 and D3. Vitamin D2 is supplemented from foods such as milk, orange juice, yogurt, some cereals or functional foods. Vitamin D3 is produced from the skin when exposed to sunlight, from supplements such as salmon, cod, liver .