Vitamin D3: Benefits to Getting Enough


Sunlight vitamin D3 is beneficial for your entire body. It helps your body absorb calcium and phosphorus, which keeps your bones strong. This substance contributes to the health of the immune system, to the mood, the heart, and even to weight loss. When your skin is exposed to sunlight, your skin produces vitamin D3.

What It Is

In addition to dietary supplements and fortified foods, Vitamin D can be found in plants in the form of Vitamin D2 (ergocalciferol). There is a Vitamina D3 molecule found in animals (cholecalciferol). Although similar, there are some important differences between the two types. To become active in the body, both are chemically processed by the liver and kidneys, though different enzymes activate each form.

The active form of the vitamin D binds to cells in the body, helping them control calcium and phosphate absorption from food. Although D2 and D3 go through the same process, D3 is more efficient at it and lasts longer.

Additionally, it is known that vitamin D3 increases serum levels of vitamin D more effectively than vitamin D2. Since vitamin D3 takes up less room and is more desirable, it gets more attention and more shelf space in stores.

Sunscreen use, little or no sun exposure, darker skin pigmentation, and/or regular sunscreen use may prevent you from getting adequate vitamin D. Some people may find supplements beneficial since little food contains this nutrient naturally

Health Benefits

Many health benefits are associated with vitamin D3. The benefits of this supplement include strengthening bones and muscles, boosting immunity, improving mood, and promoting weight loss.


Muscles and bones both benefit from vitamin D. Small intestinal absorption of calcium is enhanced by it. Without enough vitamin D, your body will remove calcium from your bones. As a result, the bones become weak and fragile, which can lead to osteoporosis and fractures.

Vitamin D increases bone strength and reduces fractures, according to research. Also, high levels of vitamin D3 in the diet may contribute to adult bone mass growth and therefore reduce the risk of osteoporosis.4


Research suggests that vitamin D may reduce the risk of acute respiratory infections and pneumonia.

An increase in severe illness and infection risk may be associated with vitamin D deficiencies during the COVID-19 pandemic. Yet more work needs to be done to determine what role this vitamin may or may not play in fighting the coronavirus that caused the pandemic.


Vitamin D deficiencies often accompany clinical depression, according to studies. Although it is unclear whether the deficiency is the cause of depression or if depression causes the deficiency by changing behaviors (e.g., diet, time outside).

Vitamin D has been shown to be beneficial to the brain and researchers have hinted at the mechanism of action that explains how a deficiency may lead to depression. Furthermore, they found that the level of vitamin D is associated with symptom relief. However, larger, well-designed studies are needed to determine whether vitamin D can be beneficial as part of a depression treatment program.

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