"Love it."
EFECTIV® VITAMIN D3 & K2
EFECTIV Nutrition Vitamin D3 with K2. Vitamin D contributes to the maintenance of normal muscle function, normal bones and the normal function of the immune system.
Vitamin K contributes to the maintenance of normal bones.
Vitamin D3
4000 IU
Vitamin K2
180 mcg
Detailed Breakdown
| Nutrient | Per 1 Capsule |
|---|---|
| Vitamin D3 (from Lichen) | 4000 IU |
| Vitamin K2 (as MK7) | 180 mcg |
Ingredients
Vitamin D3 (Lichen), Vitamin K2 (MK7), HPMC (Hydroxypropyl methylcellulose) Capsule Shell
No known allergens. Manufactured in a facility that also handles Egg, Gluten, and Nuts.
Remove Lid
Take out 1 capsule
1 Capsule
Drink with a small glass of water
Replace Lid
Store in a cool, dark place
Recommended Timing
Pro Tip
Blend with ice and a banana for a high-calorie recovery smoothie, or mix into oatmeal for a protein-packed breakfast.
Standard Delivery
2-3 Working Days - £1.99
Free over £20Express Delivery
Next Working Day
£2.9930-Day Money Back Guarantee
Train with confidence. If you don't feel the difference, return the unused portion for a full refund.
Secure Payment Options
Pay in 3 interest-free installments of £4.00. No fees.
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The Science Behind The Formula
By working with top manufacturers in the UK, we're able to source and use the highest quality ingredients and flavours, with all of our products meeting the highest UK food safety standards.
Every active ingredient and its dose per serving, printed on the label.

"Bioavailability is the key to effective sports nutrition."
m. bowering, expert formulator
The Efectiv Difference, How We Compare
Why athletes choose us over the competition.
Trusted by Champions.
25+ Efectiv Athletes
Lewis Barker
Brad Farnill
Reece Mitchell
Helen Nutter
Transparent Label
Inside the Scoop.
We don't hide behind proprietary blends. Every ingredient is listed with its exact dosage so you know exactly what you're fueling your body with.
4000IU
Vitamin D3
Vegan Friendly Source
High-Dose
180mcg
Vitamin K2
Bioavailable MK7 Form
Calcium Distribution
Real Results. Real People.
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Frequently Asked Questions
Yes, this product is suitable for vegetarians. However, it is not suitable for vegans as it contains dairy derived from milk.
All our products are manufactured in small batches to ensure freshness. You can expect at least 12 months shelf life from the date of purchase.
Our Whey Isolate is filtered to remove 99% of lactose, making it suitable for most people with mild to moderate lactose intolerance.
No. Every batch is Informed Sport certified, meaning it is rigorously tested for banned substances and safe for elite athletes.




