Does black skin produce vitamin D?

The body makes vitamin D when the skin is exposed to the sun. The process is less efficient in darker-skinned people, which is why blacks typically have low total levels of vitamin D. Fatty fish such as mackerel and salmon are the main sources of natural vitamin D.

Does darker skin produce more vitamin D?

Melanin is the pigment that provides skin color, and individuals with darker skin have more of it than those with lighter skin. Having more melanin reduces your ability to synthesize vitamin D from the sun, resulting in lower 25-hydroxyvitamin D levels, according to the ODS.

Do Africans get more vitamin D?

Individuals of African ancestry living in temperate regions have a poorer vitamin D status than do other ethnicities, which has been associated with higher prevalence of cardiovascular disease, diabetes, and some cancers observed among African–American people.

Do dark skin people have trouble absorbing vitamin D?

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?

Skin pigmentation, i.e., melanin, absorbs the UVR that initiates vitamin D synthesis, and hence decreases the vitamin D that is made for a given exposure compared to less pigmented skin.

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Can you get vitamin D through clothes?

Certain rays in the light spectrum activate a chemical reaction that leads to vitamin D production. … Wearing sunscreen or even a light shirt can limit your skin’s ability to produce vitamin D, although the type of fabric seems to be more of a factor when it comes to absorbing ultraviolet rays.

How much vitamin D do I need dark 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 ).

Which country is the most vitamin D deficiency?

Prevalence of vitamin D deficiency worldwide

Worldwide, many countries report very high prevalences of low vitamin D status. 25(OH)D levels <30 nmol/L (or 12 ng/ml) in >20% of the population are common in India, Tunisia, Pakistan, and Afghanistan.

Which country has the most vitamin D deficiency?

The highest prevalence of vitamin D deficiency was found in Pakistan (73%;95% CI: 63 to 83%) followed by Bangladesh (67%; 95% CI: 50 to 83%), India (67%; 95% CI: 61 to 73%), Nepal (57%; 95% CI: 53 to 60%) and Sri Lanka (48%; 95% CI: 41 to 55%), respectively.

How many minutes of sun do you need for vitamin D?

Regular sun exposure is the most natural way to get enough vitamin D. To maintain healthy blood levels, aim to get 10–30 minutes of midday sunlight, several times per week. People with darker skin may need a little more than this. Your exposure time should depend on how sensitive your skin is to sunlight.

How do you know if you have low vitamin D?

Symptoms of vitamin D deficiency can include muscle weakness, pain, fatigue and depression. To get enough D, look to certain foods, supplements, and carefully planned sunlight.

Signs and symptoms might include:

  1. Fatigue.
  2. Bone pain.
  3. Muscle weakness, muscle aches, or muscle cramps.
  4. Mood changes, like depression.
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