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All About Vitamin D

All About Vitamin D
  • Updated on 15 Aug 2023
  • Redaksi Liveaman
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Vitamin D is an essential nutrient that plays a crucial role in maintaining human body health. Known as the “sunshine vitamin,” vitamin D has numerous benefits and diverse roles in our bodies. This article will discuss the benefits of vitamin D, its sources, foods containing vitamin D, the difference between vitamin D2 and D3, the question of whether we should consume vitamin D every day, and the effects of vitamin D deficiency.

Also read: Good to Know, 10 Company Benefits for Fresh Graduates

Benefits of Vitamin D

Vitamin D has various important benefits for our health. One of its primary benefits is in the absorption of calcium, an essential mineral needed to maintain strong and healthy bones and teeth. Vitamin D deficiency can lead to poor calcium absorption, which can ultimately result in bone health issues such as osteoporosis.

Additionally, vitamin D also plays a role in maintaining a healthy immune system. Research has shown that vitamin D can assist the body in fighting infections and diseases. Vitamin D also contributes to maintaining proper muscle function and plays a role in regulating the cardiovascular and hormonal systems.

Sources of Vitamin D

The primary source of vitamin D is sunlight. When the skin is exposed to sunlight, the body can naturally produce vitamin D. However, several factors can affect the production of vitamin D through sunlight, such as exposure time, geographical location, and sunscreen use. Apart from sunlight, vitamin D can also be found in certain foods.

Foods Containing Vitamin D

Although vitamin D is more commonly obtained through sunlight exposure, some foods also contain vitamin D. Some examples of foods that contain vitamin D include:

  1. Fatty Fish: Fish such as salmon, tuna, and mackerel are good sources of vitamin D. 
  2. Eggs: Egg yolks also contain a sufficient amount of vitamin D. 
  3. Fortified Foods: Some foods like milk, cereal, and orange juice are often fortified with vitamin D. 
  4. Vitamin D Supplements: Vitamin D supplements, especially vitamin D3, are available in the market and can be used to meet daily needs.

Difference between Vitamin D2 and D3

There are two main forms of vitamin D that are commonly known, namely vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D2 is predominantly found in plants, while vitamin D3 is typically derived from animal sources like fatty fish and egg yolks. Although both have similar functions in the body, some studies suggest that vitamin D3 may be more effective in increasing blood vitamin D levels.

Should We Consume Vitamin D Every Day?

It is important to obtain sufficient vitamin D intake for optimal health. However, whether we need to consume vitamin D every day depends on factors such as age, lifestyle, sunlight exposure, and dietary habits. It is advisable to consult a healthcare professional before deciding to take daily vitamin D supplements.

Effects of Vitamin D Deficiency

Vitamin D deficiency can have negative impacts on our health. One of the most well-known effects is the risk of brittle bones and osteoporosis, especially in older adults. Vitamin D deficiency can also contribute to poor immune function and increase the risk of heart disease, diabetes, and certain types of cancer.


Vitamin D is a crucial nutrient with significant benefits for our health. While sunlight is the primary source of vitamin D, foods such as fatty fish, eggs, and fortified products can also help meet our daily requirements. Ensuring adequate vitamin D intake is essential to prevent the negative effects of deficiency. Before deciding to take daily vitamin D supplements, consult your healthcare professional to receive guidance tailored to your individual needs.

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