Vitamin D3 400iu, Highly Absorbable Pure Grade Formula
- Provides Vitamin D3 400iu, as recommended by The Department of Health
- For the maintenance of normal bones, teeth, muscle function, and immunity
- Easy-to-swallow, one-a-day, vegetarian-friendly formula
For more information, please read our Vitamin D FAQ
Our convenient, one-a-day Vitamin D3 400iu tablets provide The Department of Health-recommended amount of Vitamin D all UK adults should consider taking throughout the winter months.
This level is an excellent choice if you want to top-up your vitamin D intake or combine it with one of our comprehensive multivitamins, most of which already supply 400iu vitamin D3. If you get very little sun exposure, we recommend our higher strength Vitamin D3 1000iu product.
Our pure-grade Vitamin D3 400iu delivers the preferred form of vitamin D (cholecalciferol or vitamin D3), which is naturally synthesised in the body when sunlight directly hits the skin. The body absorbs vitamin D3 much better than the D2 form (ergocalciferol) made from plants.
We've chosen to provide this strength of vitamin D3 in tablets, not capsules, since this product is recommended as a top-up level, best taken alongside a multi with magnesium, zinc and vitamin K, which all increase vitamin D absorption.
We manufacture and package our Vitamin D3 400iu in UK factories working to Good Manufacturing Practice (GMP) to ensure our quality standards are always met.
Since Vitamin D3 400iu is made from cholecalciferol, it's suitable for vegetarians not vegans. However, if you're looking for a plant-based alternative, you can try our Vegan Vitamin D 1000iu.
Still unsure of which vitamin D3 product to choose? Don't worry. We have a team of friendly Nutrition Advisors on hand to help you pick from our extensive Vitamin D3 offerings. Simply click the 'Nutrition Advice' button located at the bottom right-hand of our website to start a live chat.
Learn more about the health implications of low vitamin D levels here.
What does vitamin D3 contribute to?
Vitamin D3 contributes to the normal absorption and utilisation of calcium/phosphorus and the maintenance of normal bones, teeth, and muscle function. It also contributes to normal cell division, the normal function of the immune system and healthy inflammatory responses.
Food supplements should not replace a balanced diet and healthy lifestyle.
For more information, please read our Vitamin D FAQ.
* Vitamin D3 (cholecalciferol), the form of vitamin D most used in published studies. Sourced from the lanolin content of wool, the material undergoes further processing to ensure an extremely pure and crystalline pre-vitamin D3 material. Through exposure to uv light (the same process our bodies use to manufacture vitamin D from sunlight), a highly stable form of vitamin D3 is manufactured.
Our Vegan Vitamin D3 supplement contains cholecalciferol sourced from plant lichen.
This product is suitable for vegetarians.
This product is suitable during pregnancy and breastfeeding.
This product is not suitable for vegans.