Skip to content

Vitamin D And D 3

vit4 scaled

In this article we will be discussing a very common question: vitamin d and d 3. It’s quite a sensitive & complex subject, as such we will do our best at providing a clear and concise article to clear any doubts you may have.

What Are The Main Differences Between Vitamin D And D3?

Generally, when one mentions vitamin D, the implied selection is vitamin D2. The names can be confusing, because many times, patients go into the pharmacy looking for vitamin D and are surprised that there is a D2 and a D3. Vitamin D (D2) comes from plant sources, such as wild mushrooms, as well as fortified foods, such as milk or cereal products.
Its strength is typically measured in international units, which is abbreviated as “IU” on labeling. The 50,000 IU capsules are prescription only, while lower strengths are available over-the-counter. Vitamin D is less expensive to produce and therefore is the form most commonly found in fortified food products.
Vitamin D3 mainly comes from animal sources such as fish oil, fatty fish, liver, and egg yolks. All forms of vitamin D3 are available over-the-counter.

Main Differences Between Vitamin D And D3 Vitamin D2 Vitamin D3 Drug Class Vitamin D Analog Vitamin D Analog Brand/Generic Status Brand And Generic Available Brand And Generic Available What Is The Generic Name?

Indefinite Indefinite Who Typically Uses The Medication?

Infants, children, adolescents, and adults Infants, children, adolescents, and adults.

What Is Vitamin D?

However, many people become deficient in vitamin D because they don’t get enough sunlight. Check your vitamin D levels at home with the Everlywell Vitamin D Test.

What’S The Difference Between Vitamin D 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. Vitamin D3 is found in animal sources of foods, like fatty fish and fish oil, liver, organ meats, and egg yolks. 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. 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. (The amount of vitamin D in foods and supplements is usually expressed in terms of International Units, or IUs.). Accessed February 15, 2021.
Nair R, Maseeh A. Vitamin D: The “sunshine” vitamin. Vitamin D2 vs. D3: Which Should I Take for Bone Health?. Accessed February 15, 2021.

Supplements 101: Vitamin D

In your diet, the most commonly found members are vitamin D2 and D3.

Leave a Reply

Your email address will not be published.