Vitamin D3 + K2 MK-7 | High Strength 4000 IU
✓ High-strength daily formula delivering 4000 IU Vitamin D3 and 100 mcg MK-7 K2 to support immunity, muscle function and bone health.
✓ Made in the UK with clean, science-backed ingredients.
Optimal Function Vitamin D3 + K2 4000IU | High Strength MK-7 | UK Made
A daily essential designed for long-term health and everyday performance.
Optimal Function Vitamin D3 + K2 delivers 4000 IU of Vitamin D3 combined with bioactive MK-7 Vitamin K2 for enhanced absorption and utilisation. These two nutrients work synergistically to support normal immune system function, maintain healthy bones and teeth, and help regulate calcium within the body.
Whether you're looking to feel your best year-round or simply want a reliable daily supplement you can trust, this clean and science-led formula fits seamlessly into your routine.
Why Vitamin D3 + K2 matters
Vitamin D3 plays a key role in calcium absorption, muscle support and immune function.
However, D works best alongside Vitamin K2, which helps guide calcium to where it is needed — the bones — rather than soft tissue. This is why combining D3 with K2 MK-7 is considered a highly effective approach for daily wellness.
Our high strength formula provides a meaningful dose in just one small tablet per day, making it ideal for maintaining healthy levels.
Key benefits
- Supports normal immune system function
- Helps maintain healthy bones, teeth and muscle function
- Combines Vitamin D3 + MK-7 K2 for effective calcium use
- High strength 4000 IU D3 per tablet
- Easy to swallow, convenient daily dose
- Made in the UK to GMP quality standards
Clean formula. Clear labelling. Honest dosage.
We believe supplements should be transparent and trustworthy.
That is why we use carefully sourced ingredients, batch-controlled manufacturing and clear, accurate labelling — no misleading claims or unnecessary fillers. Just a clean formula designed to support daily health.
UK Made • Science Backed • Designed for Real Life
Optimal Function Vitamin D3 + K2 is produced in state-of-the-art GMP certified facilities in the UK. Every batch is quality checked to ensure purity, consistency and safety, giving you confidence in every dose.
Take one tablet daily with food to support year-round wellbeing and energy.
FAQ's
How should I take Vitamin D3+K2?
Take one tablet daily with a meal for optimal absorption. It’s best to take it with a meal that contains healthy fats, as this helps your body absorb the vitamins more effectively.
Are there any side effects of taking Vitamin D3+K2?
When taken as directed, Vitamin D3+K2 is safe for most people. However, if you have any existing medical conditions or are pregnant or breastfeeding, it's always recommended to consult your healthcare provider before starting any new supplement.
Can Vitamin D3+K2 help with bone health?
Yes, Vitamin D3 plays a crucial role in calcium absorption, and Vitamin K2 helps direct calcium to the bones. Together, they support strong, healthy bones and can reduce the risk of bone-related issues.
Is Vitamin D3+K2 suitable for vegetarians?
Yes, Vitamin D3+K2 is vegetarian-friendly. However, if you have any specific dietary concerns, please check the ingredients or consult with your healthcare provider.
