Kaufman concluded that darker skin pigmentation is associated with lower serum 25-hydroxyvitamin D concentration. Serum vitamin D level also appears to be related to intake of vitamin D – rich foods and multivitamins containing vitamin D, but not self-reported level of sun exposure or use of sun protection.
The mean serum vitamin D concentration was 26.1 ng/mL in vitamin D–sufficient women and 10.5 ng/mL in women with deficiency. Light skin color was reported by 88% of the women with sufficient vitamin D levels and by 66.6% with vitamin D deficiency.
Dull skin: A lack of vitamin D can make your complexion appear duller and slightly grey in colour, leading to exacerbating any existing pigmentation and dark circles and preventing their healing. This is because Vitamin D is needed by skin cells to regenerate properly.
Vitamin D deficiency is associated with the risk of psoriasis and atopic dermatitis, and several clinical/observational studies have suggested the beneficial effect of vitamin D in the therapy of these 2 inflammatory skin disorders.
When vitamin D levels are low and the body isn't able to properly absorb calcium and phosphorus, there is an increased risk of bone pain, bone fractures, muscle pain, and muscle weakness. In older adults, severe vitamin D deficiency (levels less than 10 ng/mL) may also contribute to an increased risk of falls.
But how do you flush vitamin D out of your system – and can you even do that? Yes, by ensuring you consume plenty of water. This will encourage urination, allowing your body to shed the excess vitamin D and calcium more quickly. Prescription diuretics like furosemide can also be helpful.
The hyperpigmentation related to vitamin B12 deficiency is more common in darker-skinned patients. Few other cases of skin hyperpigmentation due to vitamin B12 deficiency have been reported in the literature. The mechanism of hyperpigmentation is due to increased melanin synthesis rather than a defect in melanin.
Some research has shown that a vitamin D deficiency may be connected with several skin conditions, including psoriasis and atopic dermatitis, the latter an allergic reaction that comes with an itchy, scaly rash, usually on your face, elbows, and knees.
Vitamin D deficiency has been found to be associated with a variety of cancers, including prostate, multiple myeloma, colorectal and breast cancer.
A number of factors can trigger an increase in melanin production, but the main ones are sun exposure, hormonal influences, age and skin injuries or inflammation. Sun exposure is the number one cause of hyperpigmentation as it's sunlight that triggers the production of melanin in the first place.
Because vitamin D is fat soluble, its absorption depends on the gut's ability to absorb dietary fat [4]. Fat malabsorption is associated with medical conditions that include some forms of liver disease, cystic fibrosis, celiac disease, Crohn's disease, and ulcerative colitis [1,63].
In summary, long-term supplementation with vitamin D3 in doses ranging from 5000 to 50,000 IUs/day appears to be safe.
In some studies, Melasma has been associated with low levels of vitamin D. Vitamin D is important for skin health as it helps regulate skin cell growth and immune function. Sun exposure is a major vitamin D source, and vitamin D deficiency may affect the skin's ability to control pigmentation.
However, it generally takes about 6-8 weeks of supplementation for your vitamin D levels to go back into the normal range. Even after your Vitamin D levels get normal, your doctor may still have you take supplements for a while to make sure your levels don't fall below normal again.
Vitamin D deficiency can lead to a loss of bone density, which can contribute to osteoporosis and fractures (broken bones). Severe vitamin D deficiency can also lead to other diseases: In children, it can cause rickets. Rickets is a rare disease that causes the bones to become soft and bend.
Vitamin D deficiency is associated with the risk of psoriasis and atopic dermatitis, and several clinical/observational studies have suggested the beneficial effect of vitamin D in the therapy of these 2 inflammatory skin disorders.
People with iron deficiency anemia may experience itchy skin (pruritus) that can become red, bumpy and sore when scratched. Rashes associated with aplastic anemia usually appear as tiny red or purple dots under your skin (petechiae).
Conclusion: Darker skin pigmentation is associated with lower serum 25(OH)D concentrations. Serum vitamin D level also appears to be related to intake of vitamin D rich foods and multivitamins containing vitamin D, but not self-reported level of sun exposure or use of sun protection.
Skin darkening often stems from hormonal shifts. Pregnancy, birth control, and thyroid problems can disrupt the delicate balance. These changes may spur excess melanin production, the pigment responsible for skin colour.
The effect of equivalent oral doses of vitamin D3 600 IU/day, 4200 IU/week and 18,000 IU/month on vitamin D status was compared in a randomized clinical trial in nursing home residents. A daily dose was more effective than a weekly dose, and a monthly dose was the least effective.
Official answer. Generally, it takes a few weeks of taking daily vitamin D supplements for vitamin D levels in the body to rise. Each 1,000 IU of vitamin D3 taken daily is expected to raise blood levels of 25(OH)D by 10 ng/ml after a few weeks.