Efectiv Nutrition Vitamin D3 and K2 supports immune health and bone strength. It delivers D3 and K2 together for better calcium management, and this pairing helps calcium metabolism in your body, which helps keep balance.

The D3 and K2 combo is built on quality, with independent lab verification, and a non GMO, gluten free formula.

Benefits & Features:

• Supports bone strength and immune health.
• Delivers vitamin D3 and K2 together, maximising calcium use in bones while potentially supporting arterial health and vascular balance.
• Independent lab verification gives you peace of mind, ensuring the product meets its stated ingredients and quality promises so you can trust every capsule daily.
• Ideal for daily use with a fat containing meal to maximise absorption.
• The blend supports calcium metabolism, helping calcium reach bones where it’s needed, while vitamin D3 supports immune cell function for everyday resilience and general vitality throughout the day.

Born from a commitment to quality, Efectiv Nutrition crafts clean, effective supplements with independent lab verification. The D3 and K2 blend supports calcium metabolism and bone strength while the two vitamins work together to direct calcium where it’s needed. Gluten free and non GMO, the formula fits into everyday wellness routines. For anyone after a reliable vitamin d supplement that also delivers k2 vitamin, this is a standout in the best vitamin d supplement category.

Vitamin D3 (vegan), Vitamin K2 (MK-7), Microcrystalline Cellulose, HPMC Vegetable Capsule.

• GTIN: 5060347312414
• Manufacturer: Efectiv Nutrition
• Categories: Back to School Supplements & EssentialsBest SellersBodybuilding SupplementsEfectiv NutritionNew ArrivalsNew In Supplements & VitaminsVitamin D Supplements, Tablets & Gummies
• 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.

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 essential for everyday bone and immune function.

This form is the typical dietary form of vitamin D, helping calcium metabolism and contributing to overall health, and this blend also includes Vitamin K2, which helps normal calcium handling in the body.

What Exactly Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium absorption and supports bone mineralisation, and it also plays a part in immune system regulation.

This guidance lines up with advice from health authorities on how nutrients work and absorb, and the mix with Vitamin K2 helps calcium use within bones and arteries as noted in nutrition literature.

This supplement isn’t meant to diagnose, treat, cure, or prevent any disease.

Efectiv Nutrition is recognised for its production discipline and independent lab verification, a mix that fits Welzo’s commitment to quality and transparency. This brand has established itself in the industry by prioritising validated products and clear quality signals such as Non-GMO and Gluten-Free status, which resonated with our patient and consumer audience seeking reliable supplementation. Welzo’s evaluation process emphasises collaboration with manufacturers who demonstrate consistent quality practices, and this brand meets that standard through its explicit external verification approach and clear consumer-focused messaging.

Our team reviewed brand heritage, reputation and manufacturing philosophy, and we selected Efectiv Nutrition because of its established commitment to product integrity and consumer safety. This brand’s approach supports our aim to pair clinically informed formulations with practical, accessible options for daily use. For team validation and quality assurances, this brand was assessed by Welzo's healthcare professionals for compliance with our rigorous testing protocols.

This product is well matched for calcium management support, combining Vitamin D3 and Vitamin K2 as described, making Efectiv Nutrition an ideal partner for this supplement category.