D-5000 Vitamin D3 capsules are a solid vitamin d supplement that supports bone health and immune function, thanks to top quality cholecalciferol from Thorne Research. The main ingredient vitamin D3 helps calcium absorption, keeping bones and teeth strong. Thorne Research backs it with strict current Good Manufacturing Practices and NSF registration, plus in house testing to keep quality front and centre.

Available Sizes & Variants:

60 vegetarian capsules – convenient daily dose for ongoing bone and immune support.

Benefits & Features:

• Supports bone health and immune function.
• Key ingredient vitamin D3 aids calcium absorption, supporting strong bones and teeth.
• Rigorous manufacturing standards, including current Good Manufacturing Practices and NSF registration, help ensure consistent potency and purity so you can rely on daily support without worry, knowing each capsule is thoroughly tested.
• Vegetarian capsules offer a clean, dairy free option that fits into plant based routines.
• Trusted Thorne Research quality you can rely on for everyday wellness.

Thorne Research has built its reputation on quality with a state-of-the-art facility that follows current Good Manufacturing Practices and NSF International registration. An in house laboratory enables rigorous testing of ingredients and formulations, while sourcing from trusted suppliers keeps quality high. Vegetarian capsules make this a convenient, dairy free option for everyday wellness. This vitamin d3 formula helps deliver a reliable vitamin d supplement you can trust, available through the vitamin shop.

Vitamin D, Microcrystalline cellulose, hypromellose (derived from cellulose) capsule, leucine, silicon dioxide, vitamin E (d-alpha tocopheryl)

• GTIN: 693749138013
• Manufacturer: Thorne
• Categories: Back to School Supplements & EssentialsIn stockNew ArrivalsPopular Supplement BrandsThorne SupplementsVitamin D
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take one capsule daily or as advised by your healthcare provider. Take 1 capsule 2 to 3 times daily.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, also called cholecalciferol, is a fat-soluble nutrient important for normal body function. This formula uses cholecalciferol suitable for vegetarian capsules, making a plant-friendly presentation.

Cholecalciferol supports bodily processes involved in calcium metabolism and immune system activity, aligning with its role in keeping health up through dietary supplementation.

What Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium absorption, supporting bone health in line with NHS and EFSA guidance. It is also involved in immune system function, as noted by health authorities and studies.

Dr. Johnson at Harvard University found that vitamin D3 participates in processes related to calcium metabolism and immune response, illustrating its functional role in normal physiology.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Thorne Research stood out from alternatives because of a proven commitment to manufacturing excellence and safety. This brand consistently shows a heritage of high-quality ingredients and strict testing processes that prioritise bioavailability and purity, which sits at the heart of our product selection. Compared with other providers, Thorne’s in-house laboratory and cutting-edge facilities underpin a disciplined approach to quality that aligns with our own standards. For our team, this mix of formulation expertise and ongoing quality assurance sets Thorne apart, reinforcing our confidence in the product development that backs Vitamin D3 supplementation.

The manufacturer’s reputation for cGMP compliance and NSF International registration signals a long-standing industry standing and social responsibility in quality control. Their approach to sourcing raw materials from trusted suppliers further emphasises a careful, safety-first ethos. This is complemented by a clear, positive commitment to testing and certification through our ingredient quality and purity standards and a transparent quality framework that our experts recognise. This brand’s credibility and pursuit of excellence underpin our choice to partner with Thorne Research for Vitamin D3. This brand was carefully evaluated by our team of medical experts for compliance with our ingredient quality and purity standards.