Vitamin D (ergocalciferol -D2, cholecalciferol -D3, alfacalcidol) is a fat -soluble vitamin that helps your body absorb calcium and phosphorus. Having the right amount of vitamin D, calcium, and...

维生素D3，又名胆钙化醇，是维生素D的一种， 胆固醇 脱氢后生成的7-脱氢胆固醇经紫外线照射即可形成胆钙化醇，因此也就是说胆钙化醇的维生素D原是7-脱氢胆固醇。 熔点：83-86℃ (lit.) 维生素D是一种 脂溶性维生素，也被看作是一种作用于钙、磷代谢的激素前体，它与阳光有密切关系，所以又叫“阳光维生素”。 维生素D是一族A、B、C、D环结构相同，但侧链不同的一类复合物的总称，A、B、C、D环的结构来源于类固醇的环戊氢烯菲环结构，目前已知的维生素D至少有10 …

2024年1月17日 · Vitamin D3: side effects, dosage, interactions, FAQs, reviews. Used for: prevention of falls, prevention of fractures, vitamin D deficiency, vitamin D insufficiency

2025年3月21日 · Vitamin D is a nutrient the body needs, along with calcium, to build bones and keep them healthy. The body can absorb calcium only if it has enough vitamin D. Calcium is a major part of bones. Vitamin D also has many other uses in the body. It supports immune health and helps keep muscles and brain cells working.

5 天之前 · Vitamin D3 (cholecalciferol) is most well known for promoting bone health. But this vitamin is also pivotal for boosting the immune system, enhancing mood and muscle function, and supporting heart health. You can take a vitamin D3 supplement every day to achieve glowing skin, better mental clarity, and other benefits.

Vitamin D supplements are available in two forms: vitamin D2 (“ergocalciferol” or pre-vitamin D) and vitamin D3 (“cholecalciferol”). Both are also naturally occurring forms that are produced in the presence of the sun’s ultraviolet-B (UVB) rays, hence its nickname, “the sunshine vitamin,” but D2 is produced in plants and fungi and ...

Vitamin D is a nutrient you need for good health. It helps your body absorb calcium, one of the main building blocks for strong bones. Together with calcium, vitamin D helps protect you from developing osteoporosis, a disease that thins and weakens the bones and makes them more likely to break. Your body needs vitamin D for other functions too.

Vita-D3® provides 2,000 IU of high-potency vitamin D and is clinically proven to deliver this important nutrient into the bloodstream. 1,2 The vitamin D in Vita-D3® has been shown to help your body absorb calcium, one of the main building blocks for strong bones and teeth, and supports your heart health and immune system as well.*

2023年9月28日 · Vitamin D3 (cholecalciferol) is an over-the-counter dietary supplement that's taken by mouth to raise vitamin D levels. It's for adults and children who aren't getting enough vitamin D through food or sunlight, or for people who've certain conditions that cause vitamin D deficiency, like liver or kidney problems.

2024年1月5日 · Vitamin D3 supplements can be a safe and convenient option to help you meet your needs, especially if you’re at risk of an insufficiency or deficiency. In this article, we cover how...