{"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":"calcium","name":"Calcium","efsa_roles":["is needed for the maintenance of normal bones","is needed for the maintenance of normal teeth","contributes to normal muscle function","contributes to normal blood clotting"],"buying_points":["Most adults in the UK can get enough calcium from a varied diet (dairy, fortified plant milks, leafy greens, tinned fish with bones); check your intake before assuming you need a supplement.","Calcium needs rise while breastfeeding (an extra 550 mg/day above the 700 mg adult RNI); see our life-stage nutrient table for the full breakdown.","Vitamin D helps the body absorb calcium, which is why many products pair the two; check whether a calcium product also covers your vitamin D, so you are not double-dosing elsewhere.","Taking calcium at the same time as iron or certain thyroid medications can reduce absorption of the other; space them out and check with your pharmacist if you take either."],"brands":[{"brand":"Vitabiotics","product":"Osteocare Original","retailer":"Vitabiotics","form":"Tablet (calcium + D3)","suits":"Wanting a widely stocked bone-health combination","note":"Widely available UK calcium and vitamin D3 combination; check the calcium amount against the 700 mg adult RNI."},{"brand":"Wild Nutrition","product":"Food-Grown Calcium","retailer":"Wild Nutrition","form":"Capsule (food-grown)","suits":"Preferring a food-grown format","note":"Food-grown delivery; women-focused UK brand."},{"brand":"Bulk","product":"Calcium Citrate","retailer":"Bulk","form":"Capsule (citrate)","suits":"Wanting a low-cost everyday option","note":"Budget calcium citrate from a UK supplier; citrate is generally well absorbed."},{"brand":"Boots","product":"Calcium & Vitamin D3","retailer":"Boots","form":"Tablet (calcium + D3)","suits":"Wanting a lower-cost high-street option","note":"High-street own-brand calcium and vitamin D3 combination."}],"url":"https://hervitals.co.uk/calcium/"}}