{"product_id":"vitamina-d3-1000-ui-comprimidos-21st-century-pack-3-b00t3zz94u","title":"21st Century Vitamina D3 1000 UI Tabletas, Pack de 3 (330 tabletas)","description":"\u003ch2\u003eWhat is vitamin D and why is it important?\u003c\/h2\u003e\u003cp\u003eVitamin D is an essential nutrient that plays a fundamental role in numerous bodily processes. Often called the \"sunshine vitamin,\" our body produces it when skin is exposed to sunlight. However, during winter months or in people with little sun exposure, natural synthesis may be insufficient, so food supplements like \u003cstrong\u003e21st Century Vitamin D3 1000 IU\u003c\/strong\u003e are very helpful in maintaining adequate levels.\u003c\/p\u003e\u003cp\u003eThis fat-soluble vitamin is key for the absorption of calcium and phosphorus, essential minerals for the formation and maintenance of strong bones and teeth. In addition, it intervenes in the normal functioning of the immune system and muscle function. In Spain, where solar radiation varies by season, supplementation with vitamin D3 is a practice recommended by many health professionals.\u003c\/p\u003e\u003ch2\u003eHealth benefits of vitamin D\u003c\/h2\u003e\u003cp\u003eAccording to the European Food Safety Authority (EFSA), vitamin D contributes to the following benefits:\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eNormal absorption and utilization of calcium and phosphorus:\u003c\/strong\u003e Promotes bone and dental mineralization.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eMaintenance of normal blood calcium levels:\u003c\/strong\u003e Essential for nerve transmission and muscle contraction.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eMaintenance of bones in normal conditions:\u003c\/strong\u003e Helps preserve bone density, especially in older adults.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eMaintenance of normal muscle function:\u003c\/strong\u003e Contributes to muscle strength and coordination.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eNormal functioning of the immune system:\u003c\/strong\u003e Participates in defense against infections.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003eIt is important to note that these effects occur in the context of a balanced diet and a healthy lifestyle. Vitamin D does not prevent or treat diseases, but rather supports normal physiological functions.\u003c\/p\u003e\u003ch2\u003eHow much vitamin D do you need? Recommended dosage\u003c\/h2\u003e\u003cp\u003eDaily vitamin D needs vary by age, sex, and sun exposure. EFSA establishes an adequate intake of 600 IU (15 µg) per day for adults and children over 1 year, and 800 IU (20 µg) for those over 70 years. Each tablet of \u003cstrong\u003e21st Century Vitamin D3 1000 IU\u003c\/strong\u003e provides 1000 IU (25 µg), which covers the needs of most adults.\u003c\/p\u003e\u003cp\u003eFor populations at low risk of deficiency, a dose of 1000 IU per day is safe and effective. However, it is recommended not to exceed 4000 IU daily without medical supervision, as excessive doses can cause adverse effects. Always consult a healthcare professional before starting any supplementation.\u003c\/p\u003e\u003ch2\u003eDifferences between vitamin D2 and D3\u003c\/h2\u003e\u003cp\u003eThere are two main forms of vitamin D: D2 (ergocalciferol) and D3 (cholecalciferol). Vitamin D2 is obtained from plant sources, such as mushrooms exposed to UV light, while D3 is the form produced by the human body after sun exposure and is also found in animal-derived foods such as fatty fish or egg yolk.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVitamin D3\u003c\/strong\u003e is considered more effective in raising and maintaining blood vitamin D levels, as it has a higher affinity for the body's receptors. For this reason, most supplements, such as \u003cstrong\u003e21st Century Vitamin D3\u003c\/strong\u003e, use cholecalciferol. This form is identical to that produced by the body, which makes it especially bioavailable.\u003c\/p\u003e\u003ch2\u003eHow to choose the best vitamin D supplement\u003c\/h2\u003e\u003cp\u003eWhen selecting a vitamin D supplement, it is important to consider several aspects:\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eForm:\u003c\/strong\u003e Opt for D3 (cholecalciferol) for greater efficacy.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDosage:\u003c\/strong\u003e 1000 IU daily is a common and safe amount for adults.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Look for products that are gluten-free, sugar-free, and free of artificial preservatives.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eTablet size:\u003c\/strong\u003e Small, easy-to-swallow tablets facilitate adherence to treatment.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e21st Century Vitamin D3 1000 IU\u003c\/strong\u003e meets all these criteria: it is a small tablet, gluten-free, free of artificial flavors or colors, and manufactured under strict quality controls. Each package contains 110 tablets, and this pack of 3 offers 330 doses, ideal for continuous supplementation.\u003c\/p\u003e\u003ch2\u003eProduct Features\u003c\/h2\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePresentation:\u003c\/strong\u003e Pack of 3 bottles with 110 tablets each (330 tablets in total).\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDose:\u003c\/strong\u003e 1000 IU of vitamin D3 (cholecalciferol) per tablet.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Small, easy-to-swallow tablets.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eQuality:\u003c\/strong\u003e Gluten-free, sugar-free, yeast-free, no artificial flavors, colors, or preservatives.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eInstructions for use:\u003c\/strong\u003e Take one tablet daily with a meal, or as directed by a healthcare professional.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003eThis product is a food supplement and should not be used as a substitute for a varied and balanced diet. Do not exceed the recommended daily dose. Keep out of reach of young children. Store in a cool, dry place.\u003c\/p\u003e","brand":"21st Century","offers":[{"title":"Default Title","offer_id":48764835561626,"sku":null,"price":43.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/4831\/0170\/files\/71jSQuSwFfL._AC_SL1500.jpg?v=1784484479","url":"https:\/\/vitaminaspain.es\/es\/products\/vitamina-d3-1000-ui-comprimidos-21st-century-pack-3-b00t3zz94u","provider":"vitaminaspain","version":"1.0","type":"link"}