Vitamin D production depends on exposure to sunlight. Humans living at latitudes far from the equator developed light skin in order to help absorb more vitamin D. People with light (type II) skin can produce previtamin D3 in their skin at rates 5–10 times faster than dark-skinned (type V) people.
Does skin color affect vitamin D absorption?
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.
Does lighter skin produce more vitamin D?
Circulating vitamin D concentrations differ by skin color: Individuals with darker skin produce less vitamin D with the same amount of sunlight exposure than individuals with lighter skin color [10,12].
Do light skinned people absorb vitamin D better?
Vitamin D synthesis is highly dependent on the concentration of melanin in the skin as melanin absorbs and scatters UVR-B, resulting in a less efficient conversion of 7-dehydrocholesterol to previtamin D3. Therefore, dark-skinned individuals will experience slower vitamin D synthesis than light-skinned ones.
Which skin absorbs more vitamin D?
Darker-skinned people have more melanin, a compound that protects against skin damage by reducing the amount of UVB light absorbed. Darker-skinned people need more time in sunlight to make the same amount of vitamin D as lighter-skinned people.
Do darker people get less 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 more melanin mean less 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.
Does Vitamin D Make your skin better?
Often called the ‘sunshine vitamin’, vitamin D plays an integral role in skin protection and rejuvenation. In its active form as calcitriol, vitamin D contributes to skin cell growth, repair, and metabolism. It enhances the skin’s immune system and helps to destroy free radicals that can cause premature ageing.
Why does lighter skin absorb more vitamin D?
Light skin provides better absorption qualities of ultraviolet radiation. This helps the body to synthesize higher amounts of vitamin D for bodily processes such as calcium development. Light-skinned people who live near the equator with high sunlight are at an increased risk of folate depletion.
Does Vitamin D Help pale skin?
Fair-skinned people who are prone to sunburn may need to take supplements to ensure they get enough vitamin D, say experts. It appears that those with pale skin, while not deficient, may still be lacking in the essential vitamin that the body makes from sunlight.
How can I raise my vitamin D levels quickly?
- Spend time in sunlight. Vitamin D is often referred to as “the sunshine vitamin” because the sun is one of the best sources of this nutrient. …
- Consume fatty fish and seafood. …
- Eat more mushrooms. …
- Include egg yolks in your diet. …
- Eat fortified foods. …
- Take a supplement. …
- Try a UV lamp.
How long does it take to correct a vitamin D deficiency?
The treatment dose of vitamin D depends on your age, how low your blood vitamin D level is, and what is causing the level to be low. Most often your doctor will lower the vitamin D dose after six to eight weeks of treatment.
What should you not take with vitamin D?
Steroid medications such as prednisone can interfere with vitamin D metabolism. If you take steroid drugs regularly, discuss vitamin D with your doctor. The weight loss drug orlistat — brand names include Xenical and Alli — may cut absorption of vitamin D.
Can you get vitamin D with clothes on?
If you wear clothing that covers most of your skin, you may be at risk for vitamin D deficiency. This also means that people who train indoors during winter months may have to dig into their bodies’ vitamin D stores if they don’t consume enough, which further increases their risk for deficiency.
What is the best way to absorb vitamin D?
Vitamin D is a fat-soluble vitamin, meaning that it does not dissolve in water and is absorbed best in your bloodstream when paired with high-fat foods. For this reason, it’s recommended to take vitamin D supplements with a meal to enhance absorption.
What vegetable is high in vitamin D?
In this Article
- White beans.
- Some fish, like sardines, salmon, perch, and rainbow trout.
- Foods that are calcium-fortified, such as some orange juice, oatmeal, and breakfast cereal.