Vitamin D supplements

Premium vitamin D3 1000 IU (25 µg) High-quality, plant-based supplement Treats vitamin D deficiency Supports your bones and immune system Can support your mood Can help PCOS symptoms
4 stars
Rated “Great” based on 2,109 reviews
Peter Goring, Thriva user
“I’ve been consistently using Thriva supplements over the last 6 months. Vitamin D was recommended to me after my Thriva test showed I had low levels. My levels have increased in accordance with my taking them, which I’m happy with and I do think they are higher quality than others on the market.”

Vitamin D keeps the sun shining all year round

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Improve your mood

Vitamin D deficiencies may affect your mood and make you feel down. If this is the case, a supplement might help.

Support your immune system

Vitamin D supports your immune system to help fight off illnesses like the common cold and other viruses.

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Strengthen your bones and muscles

Vitamin D helps you absorb more calcium from your food, contributing to healthier bones, teeth, and muscles.

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Improve PCOS symptoms

Vitamin D can help improve testosterone levels and regulate your menstrual cycle if you suffer from PCOS.

1 in 6 adults in the UK have low vitamin D levels in their blood. It’s a widespread deficiency associated with many conditions — like bone pain (osteomalacia), weak bones (osteoporosis), depression, and an increased risk of type 2 diabetes.

You can quickly correct a vitamin D deficiency by taking a supplement. Our supplements are great at keeping your bones, muscles, and brain healthy and happy!“

— Vishal Shah MBBS MA (Cantab) MRCGP

Chief Medical Officer

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Stop guessing, start tracking your vitamin D

Regular blood tests are the best way to see the effect your vitamin D supplements are having.

Order a vitamins blood test and see how your supplements have affected your vitamin D levels. We’ll offer you a 10% discount after you purchase your supplements.

We’ll send you your results with expert advice from a GP on what steps to take next.

Woman holding glass of water and placing vitamin D supplement into her mouth

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