Jarrow Formulas Vitamin D3 is a vitamin D supplement that helps keep healthy vitamin D levels, supporting bone health and immune function. The standout ingredient, vitamin D3 (cholecalciferol), helps your body keep calcium absorption on track. From Jarrow Formulas, a brand you can trust for quality, science-led formulae. The product is produced under current Good Manufacturing Practices and batch tested for purity and potency.

Available Sizes & Variants:

100 softgels - convenient daily dose for steady vitamin D3 support.

Benefits & Features:

• Softgel format helps better absorption.
• Pure cholecalciferol, also known as vitamin d3, at a potent 2500 IU per softgel helps keep vitamin d levels steady when sunlight is limited, supporting everyday wellbeing and bone function.
• Free from common allergens like wheat, gluten, soy, dairy, eggs, fish and peanuts.
• Produced under current Good Manufacturing Practices with batch testing for purity and potency, a trusted vitamin d supplement.
• Designed for daily use and easy swallowing, making your vitamin d routine simple.

Jarrow Formulas has built a solid reputation on science led formulations and transparent quality. The Vitamin D3 softgels use an olive oil carrier to aid absorption, and the cGMP compliant facility ensures every batch meets strict purity and potency standards. As Dr. Manson of Harvard University notes, vitamin D3 can support bone and immune health, matching the brand's commitment to reliable, high-quality supplements.

Olive Oil and Softgel (Bovine Gelatin, Glycerin, Water)

• GTIN: 790011290421
• Manufacturer: Jarrow Formulas
• Categories: Back to School Supplements & EssentialsJarrow FormulasVitamin 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.

For adults, it is recommended to take 1 softgel daily or every other day with a fatty meal or as directed by a qualified healthcare professional. Store in a cool, dry place. Individuals consuming more than 2,000 IU per day should regularly monitor their serum 25-hydroxy vitamin D levels. Consult a doctor before use if you are pregnant, nursing, under 18 years of age, or have a medical condition, especially kidney stones or kidney dysfunction, hyperparathyroidism, hypercalcemia, lymphoma, or sarcoidosis. Discontinue use if any adverse effects occur. Keep out of reach of children.

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

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, also known as cholecalciferol, is a fat-soluble nutrient essential for normal physiological function and health maintenance. This form is the body’s preferred vitamin D type and is commonly used in supplements to support vitamin D status.

In the body, vitamin D3 is converted in the liver and kidneys to calcitriol, the active hormone form that participates in key biological processes. This formulation is widely recognised for its higher bioavailability compared with other forms.

What Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium absorption, supporting bone structure and strength. It also supports immune function in line with NHS and EFSA recommendations.

Dr. Holick of Harvard University has noted that vitamin D plays a role in immune system regulation, aligning with broader guidance on maintaining vitamin D status as part of daily health practices.

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

ALLERGEN SAFETY GUIDELINES:

Please verify this product is suitable for you as it contains none of the following:
• Wheat
• Gluten
• Soybeans
• Dairy
• Egg
• Fish/Shellfish
• Peanuts/Tree Nuts

Remember to check each batch's label before use.

Vitamin D3Cholecalciferol: 25 mcg (1000 IU)

Jarrow Formulas is Welzo chosen for Vitamin D3 because this brand pursues quality through a science-led foundation and a clear commitment to purity and potency. Their approach begins with rigorous evaluation of all ingredients and adherence to current Good Manufacturing Practices (cGMP), guided by a dedicated scientific team to shape formulation and sourcing. This scientific rigour gives us confidence in their ability to consistently deliver a high-potency Vitamin D3 product that supports maintaining optimal vitamin D levels, as laid out in the product profile and related research into the product.

What makes Jarrow Formulas stand out in our evaluation is their focus on batch testing for purity and potency, and their clear commitment that customers can be sure of purity and potency in every product. This lines up with Welzo’s focus on rigorous testing and openness, strengthened by our team of specialists during the vetting process. Welzo's healthcare professionals assessed their practices as part of our standard assessment against the standards we enforce.

Opting for Jarrow Formulas over rivals reflects our confidence in their manufacturing excellence and UK-safety compliant standards, allowing us to offer a product that is well-suited for this high-potency Vitamin D3 supplement while maintaining ongoing safety oversight.