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Vitamin D is a fat-soluble vitamin. It is among the 24 essential micronutrients for human life. The main natural source of vitamin D is sunlight since it causes the skin to synthesise it, but it may also be obtained naturally via oily fish, eggs, and milk and milk substitutes. Vitamin D is important for bone and tooth health since it aids in calcium and phosphorus absorption.

a girl in the sunlight: natural source of Vitamin D3

There are two types of vitamin D in the food and supplements:

Vitamin D2 (ergocalciferol): present in certain mushrooms.

Vitamin D3 (cholecalciferol) is found in fatty fish, fish liver oil, and egg yolks.


Vitamin D3 (cholecalciferol) provides a few health benefits, including assisting the body with calcium absorption. Vitamin D3 is naturally found in foods such as fish, eggs, and cheese. It can also be formed in the skin as a result of sun exposure and ultraviolet (UV) radiation. Vitamin D3 supplements are also available and can be used to improve overall health as well as cure or prevent vitamin D insufficiency. Here are some of its benefits:

  • Strengthen bones: Your bones require calcium to preserve their condition and structural density, but as it turns out, enough vitamin D intake is required for absorbing calcium in your bones and body. According to research, your body need vitamin D to build calcium deposits in your bones. If you are lacking in vitamin D, your bones may not get these vital calcium deposits; your body may get rid of these calcium deposits from the bones and soak up them into the bloodstream.  Vitamin D supplementation may protect your bones from conditions like osteoporosis and rickets.
  • Healthy Muscles: Vitamin D3 increases muscle growth by playing an important role in the function of muscles and maintenance. It promotes calcium absorption, which is necessary for muscular contraction and general muscle strength. Furthermore, vitamin D3 promotes the creation of proteins involved in muscle development and restoration, allowing for optimum muscle development, and increased athletic performance. Vitamin D deficiency has also been linked to persistent muscular soreness, achiness, and fatigue, according to research. However, the research is limited.
  • May reduce the risk of cancer mortality: Vitamin D may assist in cancer prevention by regulating cell growth and lowering irritation in the body. According to research, optimal vitamin D levels can reduce the risk of some forms of cancer, including colorectal, breast, and prostate cancer. Furthermore, vitamin D has been proven to have an important function in strengthening the body’s defences, which may help prevent the creation and growth of cancer cells. According to one study, taking 1,100 IU per day together with calcium lowered cancer risk by 60%. However, research is limited.
  • Helps in Immunity: Although research is inconsistent, vitamin D may reduce the possibility of severe flu and COVID-19 infections. According to a recent study, low vitamin D levels lead to acute respiratory distress syndrome. People with low vitamin D levels may be more susceptible to viral infections and autoimmune disorders such as rheumatoid arthritis (RA), type 1 diabetes, and bowel inflammation. Low vitamin D levels have been related to an increased risk of cardiovascular illness, including hypertension, heart failure, and stroke. However, it is uncertain if vitamin D deficiency causes heart disease or just shows poor health when you have a chronic ailment. However, there lack of data on some aspects of illnesses, and other conditions that have yet to be explored might lead to major problems if you do not visit your practitioner.
immunity booster: Vitamin D3


Vitamin D3, also known as cholecalciferol, is essential in the human body because it promotes calcium and phosphorus absorption from the intestines. Vitamin D3 is converted to its active form in the liver and kidneys when it is synthesised or received from sunshine exposure or dietary sources. This active form then attaches to particular receptors in cells all across the body, including those in the intestines, bones, and immune system, controlling critical functions.

 When exposed to sunlight, Vitamin D is transformed into calcidiol, the vitamin’s storage form, which is subsequently changed into calcitriol, the active steroid form. Calcitriol attaches to the vitamin D receptor inside your cells, activating or deactivating genes. However, too much sunlight or Vitamin D3 supplement can be toxic and lead to serious problems. Book an appointment with your medical practitioner and consult them regarding issues or concerns regarding Vitamin D3.


However, there is some information to suggest that vitamin D3 is favourable in some ways; however, further studies are required to completely understand its possible benefits. According to studies, vitamin D3 is essential for immune system and bone health, and it may also be helpful for mood and cognitive function. However, the research reveals that the 400–800 IU/day recommended dosage of vitamin D3 may be insufficient for many persons. Adults may consume between 1000 and 2000 IU of vitamin D3 daily for moderate dosage. For people with particular medical concerns or those who haven’t gotten much sun exposure, higher dosages might be required. For advice on the optimum dosage for individual requirements, speak with a healthcare expert.

To determine the ideal dosage and long-term benefits of vitamin D3 supplementation in these areas, additional research is necessary. Therefore, it is best to get medical advice before beginning any vitamin D3 supplementation programme. It’s also crucial to keep in mind that while vitamin D3 may be obtained through food and direct sunlight, some people could still need supplements to attain ideal levels.


Vitamin D3 is also known as:

  • Vitamin D3 Cholecalciferol Oil 2.5% 25,000 ug / g 1,000,000 I.U. / g Vegan
  • Vitamin D3 Cholecalciferol Oil 2.5% 25,000 ug / g 1,000,000 I.U. / g Wool Lanolin
  • Vitamin D3 Cholecalciferol Oil 0.25% 25,000 ug / g 1,000,000 I.U. / g Vegan
  • Vitamin D3 Cholecalciferol Powder 0.25% 2500 ug / g 1000,000 I.U. / g Wool Lanolin

Vitamin D3 is commonly available as:

  • Vitamin D3 tablets
  • Vitamin D3 capsules
  • Vitamin D3 softgels
  • Vitamin D3 gummies
  • Vitamin D3 liquid drops

Glentworth Formulations is here to suit your every need. Everything from Tablets, Capsules and Powder blends.

If you are wanting to know more information, please get in contact with us. Either using the contact form or contacting us directly on:

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