Vitamin D3 (cholecalciferol) is generally considered better than Vitamin D2 (ergocalciferol) for several reasons:
- Better Absorption and Effectiveness: Vitamin D3 is more effective at raising and maintaining overall vitamin D levels in the bloodstream. Studies show that Vitamin D3 is about 87% more effective at raising blood levels of vitamin D compared to Vitamin D2. More bioavailable.
- Longer Duration of Action: Vitamin D3 has a longer half-life in the body, meaning it stays active in the body for a longer period, providing more sustained benefits.
- Natural Source: Vitamin D3 is the form of vitamin D produced naturally by the skin when exposed to sunlight. In addition to lichen, it’s also found in animal-based foods like fatty fish, liver, and eggs. Vitamin D2, on the other hand, is primarily derived from plant sources and fungi (like mushrooms), and it is often used to fortify foods.
- Biological Potency: Research suggests that Vitamin D3 may be more potent in terms of its biological effects. It’s better at binding to vitamin D receptors in the body, leading to more efficient calcium absorption and better bone health.
While both Vitamin D2 and D3 can help raise vitamin D levels, Vitamin D3 is typically preferred because it is more effective, longer-lasting, and better absorbed by the body.
