Ultra D3 + K2 BIO+

Precision daily vitamin D support, elevated through intelligent formulation.

Many vitamin D supplements take a simplistic one-ingredient approach, despite nutrient interactions playing an important role in effective daily supplementation. Nature’s Well High Strength Vitamin D3 + K2 combines 4000 IU vitamin D3 with premium K2 MK-7, alongside carefully selected supporting cofactors including magnesium bisglycinate and BioPerine®. Why this formulation? Vitamin D does not operate in isolation, which is why this formula combines premium K2 MK-7 with carefully selected supporting cofactors including magnesium bisglycinate and BioPerine®, reflecting a more considered approach than conventional single-ingredient vitamin D supplements.

Ideal for adults seeking intelligent daily vitamin D support, particularly during periods of limited sunlight exposure.

ULTRA D3 + K2 BIO+

120 SOFTGELS

High-strength vitamin D3 4000 IU and K2 MK-7 200mcg to support immune, bone and muscle function.

★★★★★ 224 Reviews

Supports immunity, bones & normal muscle function

Key Benefits

  • High-strength 4000 IU vitamin D3 with 200mcg premium K2 MK-7
  • Supports normal immune, bone and muscle function*
  • Enhanced with magnesium bisglycinate, BioPerine® and absorption-supporting cofactors
  • Precision-formulated for absorption, purity and consistency
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🇺🇸 Made in UK

Take 1 capsule daily with water, preferably with food. Small, easy-to-swallow capsules designed for effortless daily use
Do not exceed the stated recommended daily dose.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle.
Optimal timing: Breakfast or lunch with a fat-containing meal.

Magnesium bisglycinate, capsule shell (hydroxypropyl methylcellulose), chicory root fibre (inulin), sunflower lecithin, vitamin D3 (cholecalciferol), vitamin K2 (menaquinone-7), vitamin B6 (pyridoxal-5-phosphate), boron glycinate, anti-caking agent (silicon dioxide), black pepper extract (BioPerine®).

An advanced vitamin D3 and K2 formulation enhanced with carefully selected absorption-supporting cofactors, designed for modern daily supplementation.
Manufactured in the UK to GMP standards.
Free from gluten, artificial colours and preservatives.
Suitable for vegans, halal and kosher diets.
Store in a cool, dry place out of sight and reach of children.

Pairs well with:
Advanced Magnesium Complex Capsules | Threonate, Bisglycinate & Taurate
Magnesium plays an important role in vitamin D metabolism and utilisation.

High Strength Algae Omega 3 DHA + EPA Softgels
A premium complementary addition to a broader daily foundational routine.

Serving Size: Amount Per Serving
2 softgels Serving per Container: 30
Vitamin D (as cholecalciferol) ............. 100 µg (4000 IU) 2000% NRV
Vitamin K2 (as menaquinone-7, MK-7) ............. 200 µg 267% NRV
Vitamin B6 ....................................... 2 mg 143% NRV
Magnesium ....................................... 25 mg 7% NRV
NRV = Nutrient Reference Value .
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100% Plant-Based Ingredients
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Made in the UK
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No Artificial Additives
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Third-Party Tested for Quality