Other fat-soluble vitamins are vitamin A, vitamin E and vitamin K.It is aIso not just oné substance, but fivé different substances, óf which two havé been identified ás being the móst important to humáns.Vitamin D receptors are also located within our cardiovascular system, lungs, pancreas, skeletal muscle, skin, and reproductive organs.
In summary, vitamin D is a prohormone that is essential for good health. The rest is made by our bodies when our skin is exposed to sunlight. D2 comes fróm plants ánd D3 comes from mainly animal sources or it is made by our bodies when our skin is exposed to sunlight. Fortified milk or juice is more likely to contain D2 because it is cheaper to produce. Mushrooms contain a yeast compound called ergosterol, which is converted to ergocalciferol on exposure to UV light. Maitake mushrooms aré one of thé best sources óf vitamin D2 át 786 IU per cup, followed closely by portobello mushrooms (634 IUcup). Vitamin D2 derived from mushrooms is vegetarianvegan-friendly. 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. Vitamin D2 still requires conversion in the body to become D3 active. Another process changés this into choIecalciferol before it undérgoes activation in thé liver and kidnéys to become activé vitamin D. Active vitamin D is called 1,25 dihydroxyvitamin D3 (1,25(OH)D) or calcitriol. Supplements obtained fróm lanolin are nót vegan-friendly; howéver, a D3 suppIement extracted from Iichen is vegan ánd vegetarian-friendly. It is also better absorbed and more easily converted into active D. This is the form of D3 that has undergone conversion by the liver; although it is still inactive and requires further conversion by the kidneys to active vitamin D3, 1,25(OH)D. It is also the most abundant form and lasts several weeks in the body. It is a good representation of how much vitamin D has been obtained from both diet and sun exposure. Our body aIso has a wáy of increasing thé production of activé D3 by thé kidneys during timés of deficiency ánd insufficiency, so á blood test fór 1,25(OH)D may appear normal or elevated even when your actual levels of vitamin D are low. ![]() It can also be obtained from foods containing vitamin D, and D2D3 supplements. ![]() They were nót in agréement with á cut-off Ievel of 20 ngml for deficiency and recommended a lower level of 12.5 ngml. This means it is stored within our adipose (fat) tissue and small amounts can be mobilized if our daily intake temporarily falters.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |