What skin color absorbs the most vitamin D?
Women with light skin color had the highest vitamin D levels in summer and the lowest in winter (18.4 ng/mL (95% CI 15.0–22.7) and 14.6 ng/mL (95% CI 12.3–17.4), respectively).
Does dark skin affect vitamin D absorption?
Among Americans of color, the vitamin D deficiency rate jumps to 70%. Pigment in persons with darker skin blocks sunlight absorption, a key process for vitamin D production.
Does skin color affect vitamin D levels?
Studies have shown that individuals with darker skin pigmentation require longer or more intense ultraviolet radiation exposure to synthesize sufficient levels of vitamin D. In other words, if you have darker skin, you tend to make less vitamin D in the sun than people with lighter skin.
What stops the absorption of vitamin D?
Some factors that may reduce or block its absorption include: Conditions such as celiac disease, chronic pancreatitis, Crohn’s disease, and cystic fibrosis. These can all affect the intestines, preventing them from absorbing vitamin D found in food. BMI (body mass index) higher than 30.
Are Darker skin people more prone to vitamin D deficiency?
The body naturally produces vitamin D in response to the skin’s exposure to sunlight. People with darker skin pigmentation, like African-Americans, are at greater risk for vitamin D deficiency or insufficiency because the higher presence of melanin reduces the body’s ability to produce vitamin D.
How much vitamin D should I take brown skin?
People with darker skin can benefit from consuming 1,000–2,000 IU (25–50 mcg) of vitamin D daily, especially during winter months ( 32 ).