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    Major Differences between Vitamin D and Vitamin D3

    Vitamin D3 is a subgroup of Vitamin D. Explore the striking differences between Vitamin D and D3 only @ BYJU'S.

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    Difference Between Vitamin D And Vitamin D3

    Vitamins are essential nutrients that our boy needs in small amounts to work properly. Vitamin D is one of the complex vitamins needed by our body to grow and develop. Vitamin D is available in two forms known as vitamin D2 and vitamin D3. There are quite a few differences between vitamin D and vitamin D3 but the main difference between them is that vitamin D is a fat-soluble vitamin that regulates calcium and phosphorous levels of the body whereas the vitamin D3 is the natural form of vitamin D produced by the body from sunlight. Given below are more differences between vitamin D3 and vitamin D.

    Vitamin D3 vs Vitamin D

    Vitamin D Vitamin D3

    Manufactured both in plants and animals Manufactured specifically in animals and is found on the skin of animals

    Exists in five forms as vitamin D1, D2, D3, D4 and D5 Vitamin D3 is Cholecalciferol

    It is not always beneficial for the body. The vitamin D2 can be toxic for the body Vitamin D3 is good for the body

    It is a micronutrient necessary for the absorption of calcium, magnesium and phosphate A subtype of vitamin D produced by the skin

    Vitamin D

    Vitamin D is an important vitamin obtained from sunlight. It is essential for strong bones and helps the body use calcium from the diet. It is naturally present in fish, fish liver oils, egg yolk, etc. Loe levels of vitamin D might lead to cancers, cardiovascular diseases, severe asthma in children, etc.

    Vitamin D3

    Vitamin D3 can have an impact on more than 2000 genes in the body. Low levels of vitamin D3 can have drastic impacts on human health. It is responsible for gene regulation. It has a great effect on the bone health, insulin control, low blood pressure, cancer prevention, etc.

    The listed above are a few differences between vitamin D and vitamin D3. From the differences, we can conclude that the main difference between vitamin D3 and vitamin D is that Vitamin D3 is a subgroup of vitamin D that is produced by the exposure of the skin to the sunlight.

    Types of Vitamins Nutrients

    Vitamin B Deficiency of Vitamin B12

    Test Your Knowledge On Difference Between Vitamin D And D3!

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    Source : byjus.com

    Vitamin D vs. D3: what's the difference?

    There are two forms of vitamin D dietary supplements, and it's important to understand their differences. Read our blog to learn which to take.

    Vitamin D

    Vitamin D vs. D3: what's the difference?

    Medically reviewed by Neka Miller, PhD on February 15, 2021. To give you technically accurate, evidence-based information, content published on the Everlywell blog is reviewed by credentialed professionals with expertise in medical and bioscience fields.

    If you’ve been learning more about vitamin D or been paying attention to the labeling on supplement bottles, you might have noticed that the term “vitamin D3” comes up. This might spring the following question to mind: vitamin D vs. D3—is there a difference and what even is D3?

    Find the answer to that question in the article below, so read on for more.

    Easily check in on your vitamin D levels from the comfort of home with the at-home Vitamin D Test.

    Buy At-Home Vitamin D Test

    What is vitamin D?

    Vitamin D is a fat-soluble vitamin that is found in certain foods and supplements, but it can also be made by the body when your skin is exposed to the ultraviolet rays of sunlight. It is actually the only vitamin of the 13 essential vitamins that your body can manufacture on its own. However, many people become deficient in vitamin D because they don’t get enough sunlight.

    One of the main roles of vitamin D is promoting calcium absorption, which allows for proper bone mineralization and growth. It also plays diverse roles throughout the body, including reducing inflammation, supporting immune function, and metabolizing glucose.

    Check your vitamin D levels at home with the Everlywell Vitamin D Test

    Test Vitamin D Levels From Home

    What’s the difference between vitamin D and vitamin D3?

    There are two possible forms of vitamin D in the human body: vitamin D2 and vitamin D3. Both D2 and D3 are simply called “vitamin D,” so there’s no meaningful difference between vitamin D3 and just vitamin D.

    That being said, it can be worth understanding how vitamin D2 and D3 specifically are different from each other—so here’s a quick rundown:

    Vitamin D3 is the form of vitamin D the human body makes when sunlight strikes the skin. The body can’t manufacture vitamin D2.

    Vitamin D3 is found in animal sources of foods, like fatty fish and fish oil, liver, organ meats, and egg yolks.

    Vitamin D2 primarily comes from plant sources (like wild mushrooms), and forms when certain kinds of plants are exposed to ultraviolet light from the sun.

    Vitamin D2 is also less expensive to produce, so it is the form most commonly used to fortify foods, like milk, cereal products, and orange juice.

    Similarities between vitamin D2 and vitamin D3

    While their chemical makeup and sources differ, vitamin D2 and vitamin D3 have much more in common. When ingested, both vitamin D2 and D3 have to pass through the liver and kidneys, where they get processed into the active, usable form of vitamin D. Both forms of vitamin D are readily available as over-the-counter oral supplements. However, high doses of vitamin D2 (up to 50,000 IUs, or International Units) are only available through a prescription.

    Which form of vitamin D is better?

    Recent studies involving daily doses of vitamin D2 and vitamin D3 show that they are equally effective in boosting your vitamin D levels.

    Thus, the type of vitamin D you get is less important than getting the right dose and making sure your levels are in the right range to avoid deficiency. Most experts recommend 600 to 800 IUs of vitamin D per day. (The amount of vitamin D in foods and supplements is usually expressed in terms of International Units, or IUs.)

    If you want to see what your vitamin D levels are like, take the Everlywell Vitamin D Test—an easy at-home option that lets you conveniently collect a sample at home and send it to a lab for accurate testing (a prepaid shipping label is included with the kit).

    Shop At-Home Vitamin D Test Today!


    1. Vitamin D. NIH, Office of Dietary Supplements. URL. Accessed February 15, 2021.

    2. Nair R, Maseeh A. Vitamin D: The "sunshine" vitamin. J Pharmacol Pharmacother. 2012;3(2):118-126.

    3. Vitamin D2 vs. D3: Which Should I Take for Bone Health?. Cleveland Clinic. URL. Accessed February 15, 2021.

    4. Jetty V, Glueck CJ, Wang P, et al. Safety of 50,000-100,000 Units of Vitamin D3/Week in Vitamin D-Deficient, Hypercholesterolemic Patients with Reversible Statin Intolerance. N Am J Med Sci. 2016;8(3):156-162.

    5. On call: Vitamin D2 or D3?. Harvard Medical School. URL. Accessed February 15, 2021.

    Source : www.everlywell.com

    What is the Difference Between Vitamin D and Vitamin D3? – Nature Made®

    If you're adding vitamin D to your regimen, you may be wondering: what's the difference between vitamin D and vitamin D3? Continue to learn more.


    What Is The Difference Between Vitamin D And Vitamin D3?


    Quick Health Scoop

    You can get vitamin D from three main sources: the sun, food, and dietary supplements

    Vitamin D contains both vitamin D2 (found in plants) and vitamin D3 (produced in the body and also found in animal foods)

    Research shows that vitamin D3 (cholecalciferol) increases blood levels of the vitamin better than vitamin D2 (ergocalciferol) [9]

    Because you might get a limited amount of vitamin D from sun exposure and from food, consider vitamin D supplementation to fill in any nutritional gaps

    Did you know that vitamin D actually comes in two different forms: vitamin D2 and vitamin D3? Crucial to your health and well-being, vitamin D delivers a host of benefits to keep your body functioning properly. Most notably, this fat-soluble vitamin supports strong, healthy bones by working in tandem with calcium, one of the primary minerals in bone. How? Vitamin D is needed for your body to absorb calcium.1 But vitamin D also supports muscle function, muscle strength, balance, and immune health.[2,3]

    Given the critical roles vitamin D plays in your body’s healthy growth and functioning, does it matter “which” vitamin D you get? What is the difference between vitamin D and vitamin D3? And how does vitamin D2 fit into the mix? Let’s dig into what the research says.

    Is Vitamin D3 the Same As Vitamin D?

    First, it helps to know where vitamin D (a.k.a. The Sunshine Vitamin) comes from. You can get this key nutrient from three main sources: the sun, food, and supplements. But which form of vitamin D is present in these three sources of vitamin D?

    Is there a difference between vitamin D and vitamin D3? Technically, vitamin D describes both vitamin D2 and vitamin D3, which differ in a few ways but function similarly in the body. Think of vitamin D as the “umbrella term” for a nutrient that comes in several different forms, similar to the B family of vitamins that includes thiamin, riboflavin, niacin, folic acid, and others.

    In foods and supplements, vitamin D comes in two primary forms (below) that differ chemically only in their structures and are well absorbed in the small intestine.[4]

    Vitamin D2 (ergocalciferol). This nutrient form is made from plants and is added to some foods and supplements to fortify them with vitamin D.[5] Sources of vitamin D2 include mushrooms (grown in UV light, which boosts vitamin D2 levels), fortified foods (such as milk, breakfast cereals, and orange juice), and some dietary supplements.Vitamin D3 (cholecalciferol). The human body naturally produces this nutrient when you expose your skin to the sun, however for vitamin D to be produced in the skin to its active form, face arms and legs need to be exposed to direct sunlight without sunscreen. It’s also found in animal foods and dietary supplements. [5,6] Sources of vitamin D3 include fatty fish (think mackerel, salmon, trout, and tuna), fish liver oils, beef liver, and egg yolks.

    Once you get vitamin D (either through sun exposure, food, or supplements), the body stores it in fat cells, where it stays inactive until needed. Next, the “hydroxylation process” kicks in, where the kidneys and liver transform the stored vitamin D into the active vitamin D—the form the body can use (known as calcitriol).[6] If your body has low vitamin D levels, it can only absorb 10% to 15% of dietary calcium, but with normal vitamin D levels, your body’s calcium absorption soars to 30% to 40%.[7]

    If you’re wondering why foods are fortified in the first place, it stems back to the 1930s, when rickets was rampant. Rickets—a disease that softens and weakens bones—stems from vitamin D deficiency.‡[8] Now, nearly all of our country’s milk supply is fortified, with each one-cup serving containing about 3 mcg (120 IU) of vitamin D. Many plant-based milk alternatives (like almond and soy milk) are similarly fortified with vitamin D2 and/or vitamin D3, as are cereal and some orange juices. [2,6]

    What Is The Best Form Of Vitamin D To Take?

    Research shows that vitamin D3 is roughly 87% more potent in raising blood levels of vitamin D and produces two to three times greater storage of vitamin D in the body compared to vitamin D2, thus making vitamin D3 the preferred vitamin D deficiency solution‡.[9]

    Keep in mind two important issues with the different sources of vitamin D.

    Sun. While spending 10-15 minutes in the sun every day (without sunscreen, exposing your face, legs, and arms) can increase your vitamin D intake, you might be worried about damaging UV rays. You face an increased risk of developing skin cancer when you spend extended time in the sun without skin protection (i.e., sunscreen, clothing, hats, and sunglasses).Food. Very few foods naturally contain vitamin D, with the best sources being the flesh of oily fish.[4] Because most people don’t consume large enough quantities of vitamin-D rich foods, they can’t be the sole source of vitamin D for many.

    Due to the issues cited above, you might get a limited amount of vitamin D from sun exposure and from food. While it’s extremely important to add vitamin-D rich foods to your diet, you should also consider taking a dietary supplement. Nature Made offers a variety of vitamin D3 supplements.

    Source : www.naturemade.com

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