Vitamin D

Often referred to as ‘the sunshine vitamin’, vitamin D is created when sunlight touches the skin. The positive effects of this vitamin on healthy bones have long been recognised. What’s now becoming apparent is the many other ways it supports good health. Unfortunately, modern lifestyles mean that, for many, levels of this vital nutrient within the body have dramatically dropped and Public Health England now recommend everyone in the UK take vitamin D supplements in the autumn and winter. Our vitamin D supplements use the D3 form of vitamin D - the body's preferred form.

Learn more about vitamin D with our vitamin D news & articles.

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Vitamin D is an incredibly important vitamin that plays a role in supporting many key areas of health. It is widely known for it’s role in supporting the immune system but it also plays a vital role to support healthy teeth, bones and muscles.


Vitamin D helps the body regulate the amount of calcium and phosphate and contributes to healthy blood calcium levels. Calcium and phosphate are needed to support healthy teeth, bones and muscles.


Vitamin D is also important for healthy cell division – a vital function in the human body.



Vitamin D deficiency in children can lead to rickets, a condition that results in bone deformities. In adults, a vitamin D deficiency can cause osteomalacia which causes bone pain. Low Vitamin D levels can also lead to less severe symptoms such as poor muscle strength, a weakened immune system, and feelings of fatigue..


In the UK it is recommended that adults and children over the age of 4 should consider taking a vitamin D supplement in Autumn and Winter when the sun is not strong enough for your body to make vitamin D in response to sunlight.


Children aged 1-4 should take a vitamin D supplement all year round.



No, there are no scientific studies that have found it is harmful to take Vitamin D at night. There have been some anecdotal reports that taking Vitamin D close to bedtime can interrupt normal sleep patterns but there is no research or evidence that this is the case.



Recent evidence has suggested that vitamin D might play a role in inflammation. Several studies have investigated the mechanism of action, showing that vitamin D may help to downregulate pro-inflammatory molecules whilst upregulating anti-inflammatory molecules. Vitamin D deficiency has also been implicated in inflammatory conditions such as Crohn’s Disease and Rheumatoid Arthritis.



If your vitamin D levels are too high over a significant time period this may cause too much calcium to build up in the body which can result in weakened bones, and damage to the kidneys and the heart. Therefore, it is important to regularly get your vitamin D levels tested when taking high strength Vitamin D supplements. Vitamin D levels are considered to be too high and in the range for toxicity when they are >374nmol/litre (>150ng/ml).