Supplemental D2 is cheaper to produce than supplemental D3 however, it is not as effective at raising levels of vitamin D in the blood nor as stable as synthetic vitamin D3. Drisdol is another name for supplemental vitamin D2.
Vitamin D2 supplements can also be made synthetically by irradiating fungus and plant matter that naturally contain ergosterol. Vitamin D2 derived from mushrooms is vegetarian/vegan-friendly. Chanterelle mushrooms contain a lot less D2 (114 IU/cup). Maitake mushrooms are one of the best sources of vitamin D2 at 786 IU per cup, followed closely by portobello mushrooms (634 IU/cup). Mushrooms contain a yeast compound called ergosterol, which is converted to ergocalciferol on exposure to UV light. Vitamin D2, also called ergocalciferol, is found naturally in mushrooms that have been exposed to the sun. Fortified milk or juice is more likely to contain D2 because it is cheaper to produce. D3 is better absorbed and more potent than D2. D2 comes from plants and D3 comes from mainly animal sources or it is made by our bodies when our skin is exposed to sunlight. Vitamin D2 and D3 are two important forms of vitamin D. What is the difference between vitamin D2 and D3? The rest is made by our bodies when our skin is exposed to sunlight. Only 10% of the vitamin D our body needs is obtained from food. In summary, vitamin D is a prohormone that is essential for good health. Vitamin D receptors are also located within our cardiovascular system, lungs, pancreas, skeletal muscle, skin, and reproductive organs. Vitamin D acts on our bones, intestines, kidneys and parathyroid glands to keep calcium in balance throughout our body. In addition, research has discovered that vitamin D is not only vital for calcium absorption and bone growth and remodeling, but several other important processes as well, such as modulating cell growth and immune system function. It is also not just one substance, but five different substances, of which two have been identified as being the most important to humans. Vitamin D has to be one of science’s most misunderstood vitamins.įor a start, it is not actually a vitamin, but a prohormone, which means that it is converted into a hormone by our body. Written by Carmen Pope, BPharm on Feb 17, 2021.
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