VITAMIN D3: Function, Daily Requirement, Deficiency, Benefits and Sources

VITAMIN D3: Function, Daily Requirement, Deficiency, Benefits and Sources

The Sunshine Vitamin: Essential for Bone Health and Much More

Sunshine is the best medicine." - Unknown

Vitamin D3, also known as the sunshine vitamin, is an essential nutrient that plays a crucial role in maintaining strong bones, teeth, and muscles. It is unique in that our bodies can produce it with exposure to sunlight. However, many individuals may not obtain enough vitamin D3 from sunlight and must obtain it from their diet or supplements. In this article, we will discuss the benefits of vitamin D3, its daily requirements, deficiency symptoms, and sources.

Vitamin D3 is also known as cholecalciferol. It is one of the two main forms of vitamin D, the other being vitamin D2 (ergocalciferol). Vitamin D3 is the more potent and biologically active form of vitamin D, and it is the form that is synthesized in the skin when it is exposed to sunlight. Vitamin D2, on the other hand, is obtained from plant sources and is less effective in raising blood levels of vitamin D.


What is Vitamin D3 and Why Do We Need It?

Vitamin D3 is a fat-soluble vitamin that is essential for the absorption of calcium and phosphorus in our bodies, which are necessary for maintaining strong bones and teeth. Vitamin D3 also plays a role in regulating our immune system, reducing inflammation, and supporting overall health.


Vitamin D Sun

How Much Vitamin D3 Do I Need Per Day and How Much is Too Much?

The recommended daily intake of vitamin D3 for adults is 600-800 IU (international units), but some individuals may require more, especially if they have limited sun exposure, dark skin, or are over the age of 70. The tolerable upper intake level for vitamin D3 is 4,000 IU per day for adults. Excessive intake of vitamin D3 can lead to hypercalcemia, which can cause nausea, vomiting, and kidney damage.


Top 5 Foods High in Vitamin D3 and Some Alternatives

There are few foods that naturally contain vitamin D3. The best sources of vitamin D3 are:

  1. Fatty fish: such as salmon, tuna, and mackerel, are excellent sources of vitamin D3. A 3-ounce serving of cooked salmon contains about 447 IU of vitamin D3.
  2. Egg yolks: A large egg yolk contains about 41 IU of vitamin D3.
  3. Mushrooms: Some varieties of mushrooms contain vitamin D3, such as portobello mushrooms, which provide about 400 IU per 3-ounce serving.
  4. Fortified foods: Many foods, such as milk, orange juice, and cereal, are fortified with vitamin D3.
  5. Supplements: Vitamin D3 supplements are widely available and can be taken under medical supervision.

A daily serving of Vitakrill Kril Gummies contains 100% of the daily vitamin D requirement.


Vitamin D food sources

15 Signs of Vitamin D3 Deficiency

Vitamin D3 deficiency can cause a range of symptoms, including:

  1. Fatigue and weakness
  2. Muscle pain and weakness
  3. Bone pain and fractures
  4. Depression and mood changes
  5. Hair loss
  6. Delayed wound healing
  7. Frequent infections
  8. Poor immune function
  9. Cognitive impairment
  10. Increased risk of chronic diseases, such as cancer and heart disease
  11. Increased risk of falls in older adults
  12. Rickets in children (a condition that causes soft and weak bones)
  13. Osteomalacia in adults (a condition that causes weak bones and muscle weakness)
  14. Hypocalcemia (low blood calcium levels)
  15. Dental problems.


Causes, Symptoms, Treatment of Vitamin D3 Deficiency

Vitamin D3 deficiency can be caused by limited sun exposure, a diet low in vitamin D3, malabsorption disorders, and certain medical conditions. The symptoms of vitamin D3 deficiency are varied and can range from fatigue to bone pain. The treatment for vitamin D3 deficiency involves increasing the intake of vitamin D3-rich foods or taking vitamin D3 supplements under medical supervision.


Who Should Take Vitamin D3 Supplements?

Many individuals may require vitamin D3 supplements, especially those who have limited sun exposure, are over the age of 70, have darker skin, or have certain medical conditions that can affect vitamin D3 absorption. However, it is important to consult with a healthcare provider before taking vitamin D3 supplements to determine the appropriate dose and ensure safety.


Vitamin D food sources


Vitamin D3 is an essential nutrient that plays a vital role in maintaining bone health, supporting immune function, and overall wellbeing. While our bodies can produce vitamin D3 with exposure to sunlight, many individuals may not obtain enough from sunlight alone and may need to obtain it from their diet or supplements. Fatty fish, egg yolks, mushrooms, and fortified foods are some of the best sources of vitamin D3. Vitamin D3 deficiency can cause a range of symptoms, including fatigue, bone pain, and depression, and can be treated by increasing vitamin D3 intake. By ensuring adequate intake of vitamin D3, we can promote bone health and overall wellbeing.



Vitakrill Krill Gummies with A, C, D3 and E Vitamins


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