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What Is The Difference Between Vitamin D And Vitamin D3?


As we all know, a healthy lifestyle includes a healthy diet and exercise. All of the vitamin D that we require should be available from the sun in the spring, summer, and autumn. The NHS recommends supplements outside of these months.

You might have noticed some vitamin D supplements are labeled as “vitamin D2” or “vitamin D3” if you’ve been shopping recently for them. This is because there are two types of vitamin D, which can come from different sources but function in very similar ways.

Read on to learn more about vitamin D and get some tips for boosting your vitamin D.

What Is Vitamin D?

Vitamin D promotes calcium absorption, regulates bone growth, and aids in immune function.

When exposed to sunlight, vitamin D is produced by your skin. If you live at a high altitude or spend most of your day indoors, then you will need to supplement your vitamin D intake.

The following are good sources of dietary protein: fatty fish, fish oil, egg yolks, butter, liver, and liver.

It may prove difficult to get enough vitamin D from your diet since there are few natural sources. It is common to not get enough vitamin D.

Many food manufacturers include it in their products, including milk, margarine, and breakfast cereals. Supplements are also very popular.

To avoid deficiency symptoms, make sure you eat vitamin-D-rich foods, get enough sunlight, and take supplements.

Vitamin D is fat-soluble, so it is best to take oil-based vitamins or to eat food with fat.

Vitamin A comes in two forms:

  • Vitamin D2 (ergocalciferol).
  • Vitamin D3 (cholecalciferol).

What Is Vitamin D3?

Vitamin D (also known as cholecalciferol) is a vitamin your body requires to absorb calcium. Vitamin D is formed in the skin by sunlight exposure. Vitamin D can also be found in certain foods, such as eggs and fatty fish. Vitamin D is essential for strong bones and muscles.

Vitamin D2 Comes From Plants, Vitamin D3 From Animals

The food source of each form of vitamin D will determine how they differ.

Vitamin D3 can only be found in animal-derived foods, while vitamin D2 is primarily found in plant sources and fortified food.

Vitamin D3 Sources

  • Oily fish and fish oil
  • Liver
  • Egg yolk
  • Butter
  • Supplements for the diet

Vitamin D2 Sources

  • Mushrooms grown in ultraviolet light
  • Fortified foods
  • Supplements for the diet

Vitamin D2 is the most commonly used form of vitamin D2 in fortified foods, as it’s less expensive to produce.

Vitamin D3 Is Made In Your Skin

When exposed to sunlight, vitamin D3 is made by the skin.

In particular, UVB (ultraviolet B) radiation from sunlight causes the formation of vitaminD3 from the compound 7 dehydrocholesterol.

Similar processes occur in plants and mushrooms. UVB light causes vitamin D2 to form from ergosterol. This compound is found in plant oils.

You may be getting enough vitamin D if you spend your time outdoors in light clothing and without sunscreen.

Indians need half an hour of sunlight twice per week.

Keep in mind, however, that the exposure time is not applicable to countries further from the Equator. These countries may require more time to attain the same results.

However, you should be cautious not to spend too long in the sun without sunscreen. This is particularly important for those with light skin tones. Sunburns can lead to skin cancer.

Vitamin D3 in the skin cannot be taken in excess, unlike dietary vitamin D. Your skin will produce less vitamin D3 if your body has sufficient.

Many people don’t get enough sun. Many people either live indoors or in countries that don’t receive much sunlight in winter. This is a problem that you should address.

Which Vitamin D Form Is Best?

Recent research comparing daily vitamin D2 and D3 levels has shown that both are equally effective in increasing vitamin D levels.

It is not important to get the correct amount of vitamin D. You need to make sure you have the right levels. Experts recommend between 600 and 800 IUs per day. (The International Units or IUs are the units used to measure vitamin D content in food and supplements.


Vitamin D is vital for good health. Vitamin D is essential for bone health, the nervous system, and the immune system. Vitamin D can be obtained from food, supplements, and sun exposure.

Vitamin D2 is the most important form of vitamin D, while Vitamin D3 plays the same function in the body. Although scientists aren’t sure which one is better, some studies have shown that D3 is more effective at raising vitamin D levels than D2. Vitamin D2 is derived from plants. However, D3 is produced by animals.

Vitamin D is a rare food that is naturally found in many foods. The best natural source of vitamin D2 is mushrooms, while the best source of vitamin D2 is fatty fish.


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