Collection: Vitamin D

A vitamin produced through sunlight exposure, supporting bone health, immunity and mood. Commonly low in the UK for much of the year.
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Areas of Support
Immune FunctionImmune Function

Areas of Support

Immune FunctionImmune Function

What is vitamin D?

Vitamin D is a fat-soluble vitamin that helps the body absorb and use calcium and phosphorus. It is best known for its role in maintaining bones, teeth and normal immune function. Vitamin D is commonly included in daily wellness supplements, multivitamins and bone health formulas, particularly in regions where sun exposure may be limited for part of the year.

What to look for in vitamin D products

  • Check whether the product contains vitamin D3 (cholecalciferol) or D2 (ergocalciferol); D3 is the form most commonly used in supplements.
  • Daily supplements often provide between 10–25μg (400–1,000 IU), while higher strength products may provide substantially more per serving.
  • As a fat-soluble vitamin, vitamin D is often delivered in oil-based capsules or softgels, although tablets and sprays are also common.
  • Sometimes vitamin D is combined with calcium or vitamin K2, particularly in products designed to support bone health.

Product Highlights

The ingredients behind the product, and the role they’re intended to play in the body.

How much vitamin D should a supplement provide?
The right amount depends on factors such as age, location, sun exposure and diet. Daily wellness products commonly provide between 10–25μg (400–1,000 IU), while higher strength supplements are also widely available.
What's the difference between 400 IU, 2,000 IU and 4,000 IU vitamin D?
Are vitamin D sprays as effective as capsules?
What's the difference between vitamin D2 and D3?
Do you need to take vitamin K2 with vitamin D?