{"schema_version":"2026-06-12","source":"https://hervitals.co.uk/api/","license":"https://creativecommons.org/licenses/by/4.0/","disclaimer":"Information only, not medical advice, and not a substitute for a registered clinician. Supplements are regulated as food, not medicines, and cannot legally claim to treat, prevent or cure any condition. Only EFSA-authorised wording such as \"contributes to normal ...\" is permitted. Always read product labels and speak to your GP or pharmacist before starting a supplement, especially if you are pregnant, breastfeeding or taking other medication. Her Vitals earns affiliate commission on some products it links to.","supplement":{"slug":"vitamin-d","name":"Vitamin D","efsa_roles":["contributes to the maintenance of normal bones","contributes to the maintenance of normal muscle function","contributes to the normal function of the immune system","contributes to normal absorption and utilisation of calcium"],"buying_points":["The NHS advises that adults in the UK consider a daily 10 microgram (400 IU) vitamin D supplement in autumn and winter; some people are advised to take it all year.","Check whether it is vitamin D3 (the form usually recommended) and whether the source is vegan if that matters to you, since most D3 is from lanolin.","Compare the amount in micrograms (mcg) and IU; 10 micrograms equals 400 IU.","Higher-strength products exist, but do not exceed label guidance without advice; speak to your GP or pharmacist, especially in pregnancy."],"brands":[{"brand":"BetterYou","product":"DLux 1000 Vitamin D Oral Spray","retailer":"BetterYou","form":"Oral spray (D3)","suits":"Preferring a spray to a tablet","note":"UK oral-spray format; check the microgram amount per spray."},{"brand":"Wild Nutrition","product":"Food-Grown Vitamin D","retailer":"Wild Nutrition","form":"Capsule (food-grown)","suits":"Preferring a food-grown format","note":"Food-grown delivery; women-focused UK brand."},{"brand":"Bulk","product":"Vitamin D3 Softgels","retailer":"Bulk","form":"Softgel (D3)","suits":"Wanting a low-cost everyday option","note":"Budget D3 from a UK supplier; check the IU and microgram amount."},{"brand":"BetterYou","product":"DLux Vegan Vitamin D","retailer":"BetterYou","form":"Oral spray (vegan D3)","suits":"Wanting a vegan source","note":"Vegan D3 spray for those avoiding lanolin-derived D3."}],"url":"https://hervitals.co.uk/vitamin-d/"}}