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Vitamin D & Calcium Review – 8 Reasons Why

By Sasha de Beausset Aparicio, MSc

Reviewed by Rebecca Williams, MD, MA, MB, BChir

Last Updated:

Evidence Based | Synopsis | Nutrition Info | Claims | Cautions | Price | How To Use | Verdict

Ostelin Vitamin D & Calcium is a dietary supplement advertised to promote strong bones. The formula manufactured by Ostelin contains two essential nutrients for muscle and bone function, as well as health preservation. Calcium may help prevent and treat diseases such as osteoporosis, while vitamin D encourages absorption and metabolism of Calcium among many other health enhancing properties. The formula exists in both chewable tablets and capsules forms, in order to address a variety of needs and targets. According to the manufacturer, the product contains the highest levels of Vitamin D and calcium available in a tablet.

The company behind this product is called Ostelin and is headquartered in Australia. It specializes in the production of Vitamin D and Calcium supplements and claims to be Australia’s number one Vitamin D brand. The company’s product portfolio includes six different products, based on Vitamin D, Calcium or a combination of the two.

Ostelin Vitamin D & Calcium is recommended for people who suffer from low Vitamin D levels and inadequate Calcium intakes, conveniently combining these two important nutrients. Pregnant and breastfeeding women are advised to consult a healthcare provider prior to using the supplement. Ostelin Vitamin D & Calcium is not recommended for children.


1) Vitamin D & Calcium at a Glance

Ostelin Vitamin D & Calcium combines 12.5 mcg of Cholecalciferol, the equivalent of 500 IU of Vitamin D3, and 1.5g of Calcium in a carbonate form. The formula is claimed to be free of gluten, sugar, lactose, starch, yeast, dairy products, and artificial colors, flavors, preservatives, or sweeteners.

Vitamin D can be found in five forms (Vitamin D1, D2, D3, D4, and D5) and is of particular importance to Calcium and Phosphorus absorption and metabolism. Vitamin D is usually naturally synthesized by the human skin when exposed to sunlight. However, more often than not Vitamin D is not sufficiently supplied (especially in areas of the Globe where exposure to natural sunlight is limited). Shortages of vitamin D may result in muscle weakness and fragile bones. Vitamin D has a number of other crucial roles, including regulating the immune system, helping the brain work in later life, and maintains heart health. Various studies have investigated Vitamin D’s role in preventing diseases such as heart disease, cancer or rheumatoid arthritis.

Calcium is required for the day to day functioning of the body, being involved in numerous processes and normal carry-out of various body functions. Calcium is a mineral. The formula contains a Calcium Carbonate form of the mineral, which is often used in dietary supplementation. Calcium has been shown to have positive impact on the health of the nervous system, heart muscles and blood clotting function. Some studies seem to indicate that people who have optimum Calcium intakes tend to have lower blood pressure. Deficiencies in Calcium can lead to a serious health condition called osteoarthritis, especially developed in the later life.

Nutrition Info

2) Ingredients of Vitamin D & Calcium

Ostelin Vitamin D & Calcium includes the following ingredients: Cholecalciferol (Vitamin D3), and Calcium (calcium carbonate).

3) Does Vitamin D & Calcium Work?

Vitamin D & Calcium was designed to promote healthy bones and assist in the prevention of bone diseases such as osteoporosis.

Vitamin D and calcium supplements are recommended if you are not obtaining enough of these two nutrients through your diet. The elderly and some individuals suffering from certain diseases may be unable to absorb enough calcium from food at the intestinal level. Deficiencies of calcium can have dire effects such as insomnia, respiratory problems, depression, headaches, etc.

Vitamin D is essential for the absorption and use of calcium. Supplemental vitamin D is not recommended for everyone as it can be produced inside our bodies in the presence of ultraviolet light. In the case of poor exposure to sunlight, this vitamin must be obtained from food. Vitamin D is directly related to the development of bones and the maintenance of a healthy nervous system.

For best results, the manufacturer recommends taking two tablets of Vitamin D & Calcium daily, or as directed by a healthcare professional.

There are testimonials posted online about Vitamin D & Calcium posted online. What is being stated includes the following:

  • Helped me with calcium deficiency

  • My kids love the chewable tablets

  • Affordable


4) Vitamin D & Calcium Claims

  • Carbonate calcium is an easily absorbed form of Calcium
  • The formula is claimed to contain the highest levels of Vitamin D and Calcium available in a tablet
  • The formula is free of artificial ingredients and most common allergens


5) What You Need to Know Before Taking Vitamin D & Calcium

  • The formula has not been reviewed by consumers
  • There is no money back guarantee available for this product
  • The formula is not designed to be used by children


6) Vitamin D & Calcium Price

Vitamin D & Calcium is averagely-priced. It is sold in increments of 130 tablets, which should be enough for approximately two months at the recommended dosage.

It can be purchased directly from the manufacturer or from numerous other retailers, online or offline. You may find that the price differs from one retailer to another. Some of them may be offering discounts and money-back guarantees.

How To Use

7) How to Use Vitamin D & Calcium

There are no consumer testimonials regarding this formula. The manufacturer recommends taking 2 tablets daily.


8) Our Verdict on Vitamin D & Calcium

The body needs essential nutrients to function properly, especially minerals and vitamins. Vitamin D and Calcium are two of the most important such nutrients. While vitamin and mineral supplements should not replace a proper diet, it is often needed to compensate for deficiencies which result from poor diets or an inadequate lifestyle. 9% of the American children are Vitamin D deficient whereas 61% are Vitamin D insufficient. It is important that you talk to a physician and identify and correct such imbalances.
Ostelin Vitamin D & Calcium is offered as a solution to compensate such deficiencies or prevent them from appearing. The formula appears to be a good supplementation alternative, although there are no consumer testimonials to confirm this.

3.8/5 - (6 votes)
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Madeleine Zanin

I am taking this product now for a few months but on and off suffered from severe stomach pains after taking it. I decided to stop it and see if the stomach pains/nausea stop. I started to actually wonder if this product has any benefits at all.


I’d never again use Ostelin products… They caused me extreme pain in my fingers.