Join the club for FREE to access the whole archive and other member benefits.

Vitamin D

Vitamin D may be one of the few vitamins we really need to take as a supplement. In July 2016, Public Health England issued new advice that everyone aged four and over needs an average daily intake of 10 micrograms of vitamin D, however, Professor Hilary Powers has said that "we can store enough vitamin D produced by sunlight during the summer months to last through-out the year."

Vitamin D is a fat-soluble vitamin whose primary function is to regulate the absorption of calcium and phosphorus in the body, which is essential for the formation and maintenance of healthy bones and teeth. Additionally, vitamin D plays a significant role in modulating the immune system, reducing inflammation, and may have protective effects against diseases such as type 1 diabetes, multiple sclerosis, and certain forms of cancer.

The body can produce it when the skin is exposed to sunlight, specifically ultraviolet B (UVB) rays. Vitamin D is also obtained through dietary sources, including fatty fish, fish liver oils, egg yolks, and fortified foods, as well as through supplements.

Vitamin D production depends on geographic location, skin pigmentation, time of day, season, and the use of sunscreen, which can all affect UVB exposure. In regions with less sunlight, especially during winter months, or for individuals who spend limited time outdoors or wear sunblock, achieving adequate vitamin D levels can be challenging.

Vitamin D News

Vitamin D: demystifying the myths and finding the facts

Scientific American - 19-Dec-2023

Separating hype from science about vitamin D supplements, deficiency, and potential benefits


Low vitamin D levels may lead to atrial fibrillation, an irregular heartbeat

Healio - 29-Sep-2023

Findings underscore the importance of maintaining adequate vitamin D levels


Vitamin D supplements may help prevent 15% of cancer-related deaths

Independent - 15-Aug-2023

Low vitamin D was mainly linked to high mortality risk from stomach, prostate, bowel, and lung cancers


New study finds vitamin D may reduce risk of heart attacks in older people

The Guardian - 28-Jun-2023

One vitamin D supplement a month slashed risk of major cardiovascular events by 9%


Dementia directly linked to Vitamin D deficiency for the first time

University of South Australia (UniSA) - 14-Jun-2022

Progressive disease can be prevented by boosting Vit-D to normal levels

More Vitamin D News

Vitamin D Resources

Click on resource name for more details.

NHS vitamins and minerals information

Between October and early March we don't get any vitamin D from sunlight


Natural health company providing supplements for healthy life.

More Vitamin D resources