Our nutrition experts have reviewed vitamin D supplements from various brands, including BetterYou, Boots, Holland & Barrett, and Vitabiotics, to find the best options.
A public health nutritionist with over 20 years of experience at Which? and the NHS has provided evidence-based insights on food and nutrition.
We analyzed 30 popular vitamin D supplements, including tablets, capsules, sprays, drops, and gummies, to determine the most readily absorbed options with the fewest unwanted extras.
Our recommended products are independently lab-tested to ensure they meet the label claims.
We uncover the products you can trust to give you the best value and quality.
Author's summary: Experts review top vitamin D supplements.