Vitamin D

Vitamin D is powerful for mood and cognition, as well as immunity and bone health.


  • MOOD


  • Strengthens bones + teeth
  • Enhances mood + assists mental health
  • Supports immune function + defense
  • Essential for calcium absorption + heart health


Vitamin D, the "sunshine vitamin," is powerful for mood and cognition, as well as immunity and bone health. One of its primary roles is aiding in the absorption of calcium and supporting bone health. This vitamin is essential for maintaining strong bones and teeth, as it helps regulate the levels of calcium and phosphorus in the body. Adequate vitamin D intake is particularly important during periods of growth, such as childhood and adolescence, to support optimal bone development.

The influence of vitamin D extends far beyond its impact on bone health. Research shows that vitamin D plays a role in immune system modulation, enhancing the body's defense mechanisms against infections and diseases. Additionally, vitamin D is believed to contribute to cardiovascular health by helping to regulate blood pressure and supporting overall heart function. Vitamin D also influences mood and cognitive health, as studies suggest a correlation between low vitamin D levels and conditions like depression and cognitive decline.


  • 1 Vitamin D can be synthesized in the skin through exposure to sunlight. When ultraviolet B (UVB) rays from the sun interact with the skin, they trigger the synthesis of vitamin D in a process that involves the conversion of a cholesterol compound into active vitamin D.
  • 2 There are two main forms of vitamin D: vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D3 is more effective at raising blood levels of the nutrient. VUUM uses vegan D3.
  • 3 Vitamin D acts more like a hormone than a traditional vitamin. It has receptors throughout the body, including in cells of the immune system, muscles, and brain. This is why its influence extends beyond bone health to various physiological processes.
  • 4 Fatty fish, egg yolks, and dairy are common dietary sources of vitamin D, making people following vegan or vegetarian diets more likely to be at risk of vitamin D deficiency.
  • 5 Some research suggests that adequate vitamin D levels may help protect against certain types of cancer and autoimmune diseases.