Essential nutrients that body needs for normal growth and development include:

  1. Vitamins
  2. Minerals

Lack of vitamins can prove an obstacle in proper functioning of body tissues.

Vitamins play a vital role in performing various functions in the body as they help shore up bones, strengthen the immune system and heal wounds. Moreover, vitamins change our food into energy and assist in repairing damaged cells naturally.

What is cholecalciferol?

Vitamin D3 also known as cholecalciferol is one of the essential vitamins that the human body requires to fight against diseases such as rickets and lack of vitamin D3.

Cholecalciferol is naturally made by our skin when we expose it to sunlight and it’s also found in some food. We may have it in the form of dietary supplements if needed.

Vitamin D3 is a fat-soluble vitamin that helps in absorbing calcium and phosphorus.

Formula: C27H44O

How vitamin D3 or cholecalciferol is important?

Vitamin D3 helps in maintaining our bones and improving our immune system. It protects you against many harmful diseases. The main function of vitamin D3 is to control the blood level of phosphorus and calcium in the body.


As we know that vitamin D3 is important for health but still a great number of the world’s population faces deficiency of vitamin D.

No doubt that sunlight is the major source of vitamin D3 as ultraviolet rays convert cholesterol into vitamin D but here the question is what if one faces its deficiency despite trying best to get it through natural resources?

Well the problem is not a big one as the solution is quite simple and easy. One may have it through food or dietary supplements available in the market.

Studies show that it is probably not possible to take an overdose of vitamin D from sunlight so there are rare cases of overdosed patients.

Maximum dose of vitamin D3 that can be taken safely is about 250mcg. Taking 250mcg daily doesn’t cause any side effect and you can’t get extra benefit by exceeding your dose.

Cholecalciferol is available in both oral & injection form. Your health care provider will prescribe you which form suits you best.

  • It is best to take the supplement after a meal but it’s optional as you may have it with or without food.
  • Measure the liquid carefully.
  • Never use a household spoon to measure the dose.
  • Follow doctor’s instructions carefully.

Possible side effects of cholecalciferol:

The supplements are totally safe to use if used according to the directions of the doctor. But in some cases it may leave following side effects:

  • Unusual fatigue
  • Constipation
  • Mood swings
  • Loss of appetite
  • Nausea
  • Increased thirst
  • Irregular or increased urination

There may also be some allergic reactions in rare cases. To avoid this side effect consult your doctor before using the supplement if you have any kind of allergic reactions.

Safety Measures:

  1. Take as prescribed by the doctor.
  2. Keep out of the reach of children.
  3. Don’t overdose.
  4. Store at a moderate room temperature.