{"product_id":"nature-made-vitamina-d3-1000-iu-300-comprimidos-b00g4ejq2y","title":"Nature Made Vitamina D3 1000 UI, 300 Comprimidos","description":"\u003ch2\u003eWhat is vitamin D3 and why is it important?\u003c\/h2\u003e\u003cp\u003eVitamin D3, also known as cholecalciferol, is a fat-soluble vitamin essential for the body. It is naturally produced in the skin after sun exposure, but in countries like Spain, especially during the winter months, skin synthesis may be insufficient. Therefore, resorting to a high-quality vitamin D3 supplement, such as the one offered by Nature Made, helps maintain adequate levels throughout the year.\u003c\/p\u003e\u003cp\u003eEach tablet provides 1000 IU (25 mcg) of vitamin D3, a dose that meets recommendations for the general population. The 300-tablet format provides a supply for almost a year if one tablet is taken daily, facilitating consistency in supplementation.\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 several key physiological functions:\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eAbsorption 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 normal bones:\u003c\/strong\u003e Helps preserve bone density, especially in older adults.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eNormal muscle function:\u003c\/strong\u003e Contributes to muscle strength and coordination, reducing the risk of falls in older people.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eNormal functioning of the immune system:\u003c\/strong\u003e Participates in defense against infections and in regulating the inflammatory response.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003eThese effects are backed by science and are part of the claims authorized by the EFSA. It is important to remember that a balanced diet and a healthy lifestyle complement the action of this supplement.\u003c\/p\u003e\u003ch2\u003eHow much vitamin D do you need? Recommended dosage\u003c\/h2\u003e\u003cp\u003eThe recommended daily dose of vitamin D varies according to age, sun exposure, and health status. In Spain, health institutions suggest between 600 and 800 IU per day for adults, although in cases of confirmed deficiency, higher doses may be necessary under medical supervision. This product provides 1000 IU per tablet, an amount within the safe and effective range for most people.\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHealthy adults:\u003c\/strong\u003e 1 tablet daily (1000 IU) is sufficient to maintain optimal levels.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOlder people:\u003c\/strong\u003e The capacity for skin synthesis decreases with age, so supplementation with 1000 IU can be especially beneficial.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePregnant and lactating women:\u003c\/strong\u003e Consult a doctor, although the 1000 IU dose is considered safe during pregnancy.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePeople with little sun exposure:\u003c\/strong\u003e Indoor workers, constant use of sunscreen, or cloudy climates benefit from a consistent daily intake.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003eIt is not recommended to exceed 4000 IU per day without professional advice, as very high doses can cause adverse effects.\u003c\/p\u003e\u003ch2\u003eDifferences between vitamin D2 and D3\u003c\/h2\u003e\u003cp\u003eVitamin D comes in two main forms: D2 (ergocalciferol) and D3 (cholecalciferol). D3 is the form our skin produces when exposed to the sun and the one found in animal foods, such as fatty fish and eggs. D2, on the other hand, is of plant origin and is obtained from fungi exposed to UV radiation.\u003c\/p\u003e\u003cp\u003eScientific studies indicate that vitamin D3 is more effective in raising and maintaining blood levels of 25-hydroxyvitamin D, the circulating form that reflects vitamin D status. Therefore, most supplements opt for D3, as is the case with this Nature Made product, which uses high-quality cholecalciferol for optimal absorption.\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 the following aspects:\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eForm of vitamin D:\u003c\/strong\u003e As mentioned, D3 is preferable due to its higher bioavailability. Nature Made uses pure D3.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDosage:\u003c\/strong\u003e 1000 IU is a standard dose suitable for maintenance. Formats of 2000 or 5000 IU may be suitable for specific needs, but always under supervision.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eManufacturer quality:\u003c\/strong\u003e Nature Made is a recognized brand that complies with strict quality controls and good manufacturing practices.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePresentation:\u003c\/strong\u003e Tablets are easy to swallow and do not require refrigeration. The 300-unit package guarantees durability.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003eIn addition, this product is free of gluten, soy, and other common allergens, making it suitable for people with food sensitivities.\u003c\/p\u003e\u003ch2\u003ePossible side effects and contraindications\u003c\/h2\u003e\u003cp\u003eVitamin D3 is generally safe at recommended doses. However, very high doses (exceeding 4000 IU\/day for prolonged periods) can cause toxicity, with symptoms such as nausea, weakness, or kidney stones. If you are taking any medication (especially diuretics or corticosteroids) or suffer from a disease that affects calcium metabolism, it is recommended to consult your doctor before starting supplementation.\u003c\/p\u003e\u003cp\u003eThis product is a food supplement and should not be used as a substitute for a balanced diet. Maintaining moderate sun exposure and a varied diet remains the best strategy for optimizing vitamin D levels.\u003c\/p\u003e","brand":"Nature Made","offers":[{"title":"Default Title","offer_id":48764155232410,"sku":null,"price":35.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/4831\/0170\/files\/61Di9MLmyeL._AC_SL1500.jpg?v=1784477967","url":"https:\/\/vitaminaspain.es\/es\/products\/nature-made-vitamina-d3-1000-iu-300-comprimidos-b00g4ejq2y","provider":"vitaminaspain","version":"1.0","type":"link"}