Weider Vitamin D3/K2 and Magnesium is a bone health and muscle support supplement that keeps you strong, active, and balanced through busy days [you know]. Vitamin D3 helps with calcium absorption for stronger bones and teeth. Vitamin K2 MK-7 guides calcium toward bones and helps keep arteries flexible. Weider has over 85 years of trusted quality in sports nutrition.

Available Sizes & Variants:

120 capsules – a easy daily dose you can slot into your routine.

Benefits & Features:

• Supports bone strength with smart calcium use.
• Promotes muscle function and immune resilience through the synergistic D3, K2, and magnesium combination that helps optimise calcium metabolism for daily performance and supports healthy recovery after tough workouts.
• K2 vitamin MK-7 steers calcium toward bones, backing mineralisation and keeping arteries flexible.
• Magnesium acts as a key cofactor for vitamin D activation, helping absorption, you know.
• Daily capsule format suits busy lives while upholding EU manufacturing standards and ingredient quality.

Weider's long standing heritage shines through this carefully crafted vitamin D supplement. Research shows D3 and K2 vitamin pairing aid bone calcium use. Magnesium is a key cofactor for vitamin D activation. Daily use supports bone, muscle, and immune wellness.

Magnesium Citrate, Hydroxypropyl Methylcellulose (Capsule Shell), Anticaking Agents; Magnesium Salts of Fatty Acids, Silicon Dioxide, Vitamin D3 (Cholecalciferol); Vitamin K2 (Menaquinone-7), Take 1 capsule per day with a balanced meal.

• GTIN: 4044782390603
• Manufacturer: Weider
• Categories: Back to School Supplements & EssentialsBlood Pressure SupplementsMagnesium SupplementsMineralsPeriod PainStress Relief & Calming SupplementsVitamin DWeider Sports Nutrition Supplements
• 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 per day with a balanced meal. Store in a cool, dry, and dark place. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of young children.

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

The Core Ingredient Stays: Vitamin D3 (Cholecalciferol)

Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin essential for supporting calcium utilisation and bone health.

This form is a synthesis of the body’s vitamin D needs and is commonly derived from natural sources to support bioavailability.

What Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium absorption, supporting normal bone and muscle function. It also supports immune resilience in line with NHS guidance and EFSA recommendations.

Dr. Ceglia of Harvard University found that vitamin D and related nutrients are important for maintaining muscle strength and immune function, particularly in active and older populations.

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

ALLERGY ADVISORY:
Before use, please note this product is manufactured in shared facilities containing:
• Gluten
• Crustaceans
• Eggs
• Fish
• Soy
• Milk
• Edible Nuts
• Lupins

Exercise caution if you have allergies to any of these ingredients.

Vitamin D3: 25 μg, Vitamin K2: 25 μg, Magnesium: 56 mg

Weider is Welzo’s trusted partner for this supplement thanks to a long-running heritage in premium sports nutrition that spans over 85 years. This brand is widely recognised for its reliability, global footprint and commitment to top‑quality formulations, which makes it a trusted pillar in fitness‑minded supplementation. The Weider product line rests on a philosophy of using high-quality ingredients to support everyday resilience and performance, which aligns with Welzo’s standards for safe, well-formulated products. Our team decided on Weider for its established reputation and its ability to deliver a clinically aligned triad of nutrients in one capsule, including Vitamin D3, Vitamin K2 MK-7 and Magnesium citrate. The formulation leans on MK-7 for better bioavailability and magnesium as a cofactor to activate vitamin D, helping utilisation. This brand was assessed by Welzo's healthcare professionals for compliance with our rigorous testing protocols.