Vitamin D Tablets

Your skin makes vitamin D from sunlight, but in the UK the sun isn't strong enough to do that between October and early March. Very few foods contain much of it either, mainly oily fish, eggs and fortified foods, so many people rely on vitamin D tablets to keep their levels up. This collection gives you high-strength vitamin D3 on its own or paired with vitamin K2.

Why choose VitaBright vitamin D?

  • We use vitamin D3, the same form your skin makes from sunlight, which is better at raising your levels than vitamin D2.
  • It comes in a small softgel made with sunflower oil, as vitamin D is a fat-soluble vitamin that your body absorbs best with fat.
  • One softgel a day, with over a year's supply in each bottle.
  • Made in the UK to GMP standards, independently lab tested and covered by our 60-day money back guarantee.
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What does vitamin D do?

Vitamin D helps your body absorb and use calcium and phosphorus, and it contributes to the maintenance of normal bones, teeth and muscle function. It also contributes to the normal function of your immune system, which is why it matters so much through the winter months.

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Vitamin D3 with K2

Vitamin D helps you absorb calcium, and vitamin K2 contributes to the maintenance of normal bones, so many people take the two together. You can buy them as a vitamin D3 and K2 combo, or add vitamin K2 to the vitamin D you already take. Vitamin K also contributes to normal blood clotting, so speak to your GP before taking it if you use warfarin or another blood thinner. Our complete guide to vitamin D3 and K2 explains how they work together.

Who should take vitamin D?

Everyone in the UK benefits from vitamin D in autumn and winter. It matters all year if you spend most of your time indoors, usually cover your skin when you're outside, or have darker skin, which needs more sunlight to make the same amount. If you're pregnant or breastfeeding, ask your GP which strength is right for you.

Vitamin D FAQs

What is the best form of vitamin D to take? +

Vitamin D3 is the best form for most people, as it’s the type your body makes from sunlight and raises your levels more effectively than D2. Our vitamin D3 comes in an oil-based softgel to help your body absorb it.

What are 5 signs of vitamin D deficiency to not ignore? +

Common signs include tiredness, aching bones, muscle weakness or cramps, low mood and getting ill more often than usual. Your GP can check your level with a blood test, and our article on vitamin D deficiency in Britain explains the signs in more detail. A daily vitamin D3 supplement is the simplest way to keep your levels up.

What is the best supplement for vitamin D? +

The best vitamin D supplement gives you vitamin D3 in a form your body absorbs well, at a dose that suits you, and keeps you taking it every day. A vitamin D3 softgel once a day does exactly that, and the vitamin D3 and K2 combo suits anyone who also wants K2.

What is the NHS recommendation for vitamin D? +

The guidance is 10 mcg (400 IU) a day for adults and children over one, especially from October to March. People who get little sun should take it all year round. If you choose a higher-strength vitamin D3, keep your total intake to no more than 100 mcg (4,000 IU) a day.