What is the function of UV light?

UV radiation is widely used in industrial processes and in medical and dental practices for a variety of purposes, such as killing bacteria, creating fluorescent effects, curing inks and resins, phototherapy and suntanning. Different UV wavelengths and intensities are used for different purposes.

Can you get vitamin D with sunscreen on?

Theoretically, that means sunscreen use lowers vitamin D levels. But as a practical matter, very few people put on enough sunscreen to block all UVB light, or they use sunscreen irregularly, so sunscreen’s effects on vitamin D might not be that important.

Can I still get vitamin D on a cloudy day?

Your body makes vitamin D when your bare skin is exposed to the sun. Most people get at least some vitamin D this way. However, clouds, smog, old age, and having dark-colored skin reduce the amount of vitamin D your skin makes. Also, your skin does not make vitamin D from sunlight through a window.

Which fruits are rich in vitamin D?

Here are 7 healthy foods that are high in vitamin D.

Salmon. Salmon is a popular fatty fish and great source of vitamin D.
Herring and sardines. Herring is a fish eaten around the world.
Cod liver oil. Cod liver oil is a popular supplement.
Canned tuna.
Egg yolks.
Mushrooms.
Fortified foods.

Can you take too much vitamin D?

Advertisement. The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination. Vitamin D toxicity might progress to bone pain and kidney problems, such as the formation of calcium stones.

Is vitamin D bad for the kidneys?

Vitamin D has been reported to have a wide range of benefits. However, a recent case study indicates that excessive use of vitamin D can cause kidney damage in people who are not deficient in the vitamin.