Vitamin D Supplements

Vitamin D is a fat-soluble vitamin that helps regulate calcium and phosphate in the body. It contributes to the maintenance of normal bones, teeth and muscle function, as well as the normal function of the immune system. The body can make vitamin D when skin is exposed to sunlight, but in the UK we do not make enough vitamin D from sunlight between October and early March. [nhs.uk], [nutrilink.co.uk]

Adults and children aged 1 year and over need 10 micrograms (400 IU) of vitamin D per day, according to NHS guidance. During autumn and winter, everyone should consider taking a daily vitamin D supplement because sunlight in the UK is not strong enough for the body to make sufficient vitamin D. Some people at higher risk of deficiency are advised to supplement throughout the year.

Individual requirements can vary, particularly if you have a diagnosed deficiency or medical condition, so speak to a healthcare professional if you're unsure which dose is appropriate for you.

Vitamin D is available in two main forms: vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Both can contribute to vitamin D intake, but many supplements use vitamin D3. offers D3 in several formats, including micro-emulsified liquid drops and capsules. Vegan D3 options derived from algae are also available.

Vitamin K2 is a form of vitamin K. Vitamin K contributes to normal blood clotting and the maintenance of normal bones. Some vitamin D formulas combine vitamin D3 with K2, including Nutrigold Vegan D3+K2+A.

If you're taking anticoagulant medication, speak to your doctor or pharmacist before taking a supplement containing vitamin K.

Vitamin D can be found on its own or combined with other nutrients. For example, offers formulas combining vitamin D3 with vitamins A and K2, while also includes tocotrienols from the vitamin E family.

If you're already taking a multivitamin or another supplement containing vitamin D, check the combined daily amount rather than considering each product separately. If you're taking medication, have a medical condition, are pregnant or breastfeeding, or are unsure about combining supplements, speak to a qualified healthcare professional.

The right option depends on the format, strength and combination of nutrients you're looking for:

• Looking for liquid vitamin D3? Bio-D-Mulsion® provides micro-emulsified vitamin D3 in a convenient liquid format.
• Looking for a vegan vitamin D? provides 2,000 IU of D3 from an algal source, while Nutrigold Vegan D3+K2+A combines plant-derived D3 with vitamins K2 and A.
• Looking for D3 alongside other fat-soluble vitamins? combines 2,000 IU vitamin D3 with vitamins A and K2, plus tocotrienols from the vitamin E family.
• Need a higher-strength vitamin D product? Bio-D-Mulsion Forte® provides 2,000 IU of vitamin D3 per drop. Higher-strength supplementation may not be suitable for everyone, so seek professional advice if you're unsure about your requirements.

Yes. offers Nutrigold Vegan Vitamin D3 2000 IU, which uses vitamin D3 derived from algae rather than lanolin. There is also Nutrigold Vegan D3+K2+A, combining 2,000 IU (50 µg) vitamin D3 from an algal source with vitamin K2 and vitamin A in a vegan capsule.

Both Bio-D-Mulsion® and Bio-D-Mulsion Forte® are liquid vitamin D3 products from that use a micro-emulsified delivery system, dispersing vitamin D oil into microscopic particles.

The main difference is strength. Bio-D-Mulsion Forte® provides 2,000 IU of vitamin D3 per drop, making it the higher-strength option.