{"product_id":"thorne-vitamin-d3-supplement-1-000-iu-90-capsules-for-bone-immune-support","title":"THORNE Vitamin D3 Supplement, 1,000 IU, 90 Capsules for Bone \u0026 Immune Support","description":"\u003cp\u003eTHORNE Vitamin D-1,000 is a vitamin D3 supplement designed to support healthy bones, teeth, immune function, and cardiovascular health, with 1,000 IU per capsule and 90 capsules per container.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVitamin D3 as cholecalciferol — supports calcium absorption for healthy teeth and bones.\u003c\/li\u003e\n\u003cli\u003eThird-party tested and certified — verifies label accuracy and checks for unsafe contaminant levels.\u003c\/li\u003e\n\u003cli\u003eMore effective at raising vitamin D levels than D2, according to research cited for the product.\u003c\/li\u003e\n\u003cli\u003eSupports muscle strength and mass, cellular repair, and performance.\u003c\/li\u003e\n\u003cli\u003eTrusted by more than 100 professional sports teams.\u003c\/li\u003e\n\u003cli\u003eRanked the #1 most recommended clinical brand by consumers and health-care practitioners in a 2026 independent US survey.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVitamin D is made naturally by the body in response to sun exposure. THORNE Vitamin D-1,000 offers a capsule-based way to add vitamin D3 to a supplement routine, including for people who work indoors or do not get adequate sun exposure. Its stated support spans bone and tooth health, immune function, cardiovascular health, and muscle function.\u003c\/p\u003e\n\u003ch3\u003eWhat is THORNE Vitamin D-1,000 designed to support?\u003c\/h3\u003e\n\u003cp\u003eIt is formulated to support healthy teeth and bones, immune function, and cardiovascular health. Vitamin D3 helps the body absorb calcium, while vitamin D also plays a role in muscle strength and mass, cellular repair, and performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEach capsule provides 1,000 IU of vitamin D3.\u003c\/li\u003e\n\u003cli\u003eThe formula uses cholecalciferol, the D3 form of vitamin D.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy choose vitamin D3 instead of D2?\u003c\/h3\u003e\n\u003cp\u003eTHORNE Vitamin D-1,000 contains D3, which is more potent and better absorbed than vitamin D2, also known as ergocalciferol. Research cited for the product indicates that D3 is more effective at raising overall vitamin D levels.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD3 is provided as cholecalciferol.\u003c\/li\u003e\n\u003cli\u003eD2 is the alternative form referred to as ergocalciferol.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho may find this vitamin D3 supplement useful?\u003c\/h3\u003e\n\u003cp\u003eIt is especially relevant for people who work indoors or lack adequate sun exposure to support the body’s natural vitamin D production. Vitamin D supports functions including calcium absorption, muscle strength and mass, and cellular repair.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCapsule format for adding vitamin D3 to a supplement routine.\u003c\/li\u003e\n\u003cli\u003eThe container includes 90 capsules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow is THORNE Vitamin D-1,000 tested?\u003c\/h3\u003e\n\u003cp\u003eThe product is third-party tested and certified to verify that its contents match the label and to confirm it contains no unsafe levels of contaminants. Thorne is trusted by more than 100 professional sports teams; a 2026 independent survey of US supplement consumers and health-care practitioners ranked it the #1 most recommended clinical brand.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThird-party certification covers label accuracy and contaminant checks.\u003c\/li\u003e\n\u003cli\u003eThe brand recommendation ranking is based on a 2026 independent US survey.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTHORNE Vitamin D-1,000 is suited to adults looking to supplement vitamin D3, particularly those with limited sun exposure who want support for calcium absorption, bones, teeth, and other vitamin D-related functions. It provides 1,000 IU of D3 per capsule in a 90-capsule supply.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eOne Capsule Contains: Vitamin D (as Vitamin D3) (1,000 IU) 25 mcg. Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide, Vitamin E (d-Alpha Tocopheryl).\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does THORNE Vitamin D-1,000 support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: THORNE Vitamin D-1,000 is designed to support healthy teeth and bones, immune function, and cardiovascular health; its vitamin D3 also helps the body absorb calcium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many capsules are in THORNE Vitamin D-1,000?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: THORNE Vitamin D-1,000 contains 90 capsules, with 1,000 IU of vitamin D3 in each capsule.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"THORNE","offers":[{"title":"Default Title","offer_id":68643274948914,"sku":"B0797H3VQS","price":24.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/3491\/1282\/files\/thorne-vitamin-d3-supplement-front.jpg?v=1794435103","url":"https:\/\/naturalvitaminsonline.com\/products\/thorne-vitamin-d3-supplement-1-000-iu-90-capsules-for-bone-immune-support","provider":"Natural Vitamins Online","version":"1.0","type":"link"}