Calcium + D3 + K2 — Bone Density Triple
The three critical nutrients for bone density: calcium, vitamin D3 (for absorption), and vitamin K2 MK-7 (to direct calcium to bone). The complete bone stack.
What does optimal health cost per day?
Less than a coffee top-up. Optimal nutrition for 32p/day — the most cost-effective investment in your health.
Free Vitamin C 1000mg with orders over £40
While stocks last · auto-added at checkout
Supply size
Most customers reorder this monthly. Each pack lasts ~30 days.
Subscribe and save 15% — never run out. Switch to subscription
Your daily health investment
£0.63
per day
£4.41
per week
£18.99
per month
Less than a daily coffee — for daily nutritional support from Calcium +.
Auto-delivered. No minimum term. Cancel any time.
Price locked forever — we never raise your subscription price. Cancel any time, no fees.
Bundle and save up to 20%
Add 2+ products to your stack — discount applied automatically at checkout.
Not ready to commit? Try a 7-day sample pack
Only £2.99 — credited toward your first full order
Group buy — save up to 30%
Limited spotsPool orders with other Calcium buyers. The more people join, the more everyone saves. Next group buy runs when we hit 50 registrations.
📦 What to expect when it arrives
Premium box
Double-sealed. No cheap poly bags — every Medibro order ships in a quality box.
Amber glass
UV-protective amber glass preserves potency. Satisfying click-lid seal.
Little extras
Every first order includes a usage guide and a surprise freebie — see what you get.
Start today
Take your first dose the day it arrives — don't wait for a 'perfect moment'.
Your 30-day journey starts today
Future you will look back on this moment.
Based on typical customer reports. Individual results vary. Backed by our 30-day guarantee.
Premium packaging, inside and out
Amber glass jar
Blocks UV degradation, no plastic leaching
100% recyclable
Jar, cap, and box are fully kerbside recyclable
No artificial fillers
No magnesium stearate, silicon dioxide, or titanium dioxide
- Free UK delivery over £35
- 14-day hassle-free returns
- Secure checkout, audit-logged
- Manually compliance-reviewed
Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
Bone health requires more than just calcium. Vitamin D3 is required to absorb calcium from the gut. Vitamin K2 MK-7 then activates osteocalcin, which binds calcium into the bone matrix — while also preventing arterial calcification.
This triple combination is supported by the strongest evidence for bone mineral density maintenance, particularly in postmenopausal women.
Benefits
- ✓Bone density
- ✓Calcium absorption
- ✓Calcium direction
- ✓Fracture risk
- ✓Osteoporosis
Dosing Guide
How to take Calcium + D3 + K2 — Bone Density Triple
Take 2 tablets daily with food containing fat.
Always read the label. Consult a healthcare professional if you have any medical conditions or take prescription medication.
Quality & transparency
How we compare
Medibro vs. typical high-street / marketplace alternatives
| Feature | Medibro | Others |
|---|---|---|
| Ingredient quality | Premium grade | Generic grade |
| Third-party tested | ||
| No unnecessary fillers | ||
| UK manufactured | ||
| 30-day guarantee | ||
| Free UK shipping from £35 |
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⏰ How to take for best results
Best time
With food, once daily
Take with
Water or a meal
Avoid with
No specific interactions — check with your GP if on medication
Consistency is key. Take at the same time each day to build habit and maximise benefit.
Frequently asked questions
Find your perfect supplement stack
Answer 4 quick questions and get a personalised stack built around your goals, health history, and lifestyle.
Medibro Quality Score™
Independent assessmentPurity
92
Overall
out of 100
Potency
Value
How we compare
Medibro | Budget | Pharmacy | |
|---|---|---|---|
3rd-party COA testing | |||
Premium forms (glycinate, KSM-66, TG omega) | |||
Full ingredient transparency | |||
UK pharmacist reviewed | |||
No proprietary blends | |||
30-day money-back guarantee | |||
Eco-friendly packaging |
Comparison reflects general market observations. Specific brands may vary.
What outcomes matter most to you?
Founded by a UK pharmacist
“After 12 years dispensing prescriptions, I was frustrated by the gap between expensive supplements and what the evidence actually supports. Medibro was built to source properly — clinical doses, verified purity, fair prices.”
— MPharm, GPhC registered · Medibro founder
Every formula is reviewed by our in-house pharmacy team before launch.
Stack Synergies
Science-backed pairings for better results
Required to activate Vitamin D — without it, up to 50% of D3 stays inactive in the body
Directs calcium deposited by D3 to bones rather than arteries — essential pairing
Fat-soluble co-absorption; omega-3 enhances D3 bioavailability and anti-inflammatory action
Synergies based on published nutritional science. Individual results may vary. Always consult a healthcare professional before combining supplements.
Complete your stack
Customer reviews
- ★★★★★Emma W.03/05/2026Good comprehensive bone formula
Post-menopausal and on doctor's advice for bone density. This combination covers all the bases at a good price.
- ★★★★★Michael B.Verified buyer26/04/2026Post-fracture recovery support
Fractured wrist — orthopaedic surgeon recommended high calcium + D3 + K2 as part of recovery protocol. This triple combination is exactly what was prescribed. Good quality.
- ★★★★★Oscar Y.19/04/2026Good comprehensive bone formula
Post-menopausal and on doctor's advice for bone density. This combination covers all the bases at a good price.
- ★★★★★Charlotte F.14/04/2026The K2 makes the difference
Finally found a calcium supplement with K2 MK-7 included. This is the correct combination and the value is excellent.
- ★★★★★Thomas A.12/04/2026Smart formulation
Finally a bone supplement that actually thinks about the science. Calcium alone does nothing without D3 and K2.
- ★★★★☆George M.05/04/2026Educational buying experience
The description explained the D3+K2 synergy really clearly. Product quality seems good and easy to take.
- ★★★★☆Emma W.04/04/2026Educational buying experience
The description explained the D3+K2 synergy really clearly. Product quality seems good and easy to take.
- ★★★★★Ella U.30/03/2026The K2 makes the difference
Finally found a calcium supplement with K2 MK-7 included. This is the correct combination and the value is excellent.
- ★★★★☆Mia J.20/03/2026Educational buying experience
The description explained the D3+K2 synergy really clearly. Product quality seems good and easy to take.
- ★★★★★Sarah M.09/03/2026The K2 makes the difference
Finally found a calcium supplement with K2 MK-7 included. This is the correct combination and the value is excellent.
- ★★★★★Hannah O.07/03/2026Good comprehensive bone formula
Post-menopausal and on doctor's advice for bone density. This combination covers all the bases at a good price.
- ★★★★★George M.21/02/2026Smart formulation
Finally a bone supplement that actually thinks about the science. Calcium alone does nothing without D3 and K2.
- ★★★★★Oscar Y.07/02/2026Good comprehensive bone formula
Post-menopausal and on doctor's advice for bone density. This combination covers all the bases at a good price.
- ★★★★★Sarah M.01/02/2026The K2 makes the difference
Finally found a calcium supplement with K2 MK-7 included. This is the correct combination and the value is excellent.
- ★★★★☆Freya Z.01/02/2026Educational buying experience
The description explained the D3+K2 synergy really clearly. Product quality seems good and easy to take.
- ★★★☆☆Sandra K.31/01/2026Bulky capsules but effective
Three capsules per serving is a lot. But the formulation is correct and bone density markers improved on my last blood test. Practical issue only — the supplement itself is doing its job.
- ★★★★★Joshua E.15/01/2026Smart formulation
Finally a bone supplement that actually thinks about the science. Calcium alone does nothing without D3 and K2.
- ★★★★★Graham N.Verified buyer27/11/2025GP approved, excellent formulation
My GP checked the formulation and was impressed — the calcium citrate form absorbs better than carbonate, D3 is the active form, and MK-7 K2 has the longest half-life. Science-backed supplement.
- ★★★★★Marianne T.Verified buyer22/09/2025Osteoporosis prevention — essential combo
On dual DEXA scanning for osteopenia. Rheumatologist specifically recommended calcium with both D3 AND K2 — the K2 directs calcium to bones rather than arteries. This triple combo ticks all the boxes.
- ★★★★☆Patricia C.04/09/2025Good for bone health, easy on stomach
Calcium citrate is gentler on the stomach than carbonate — important for those of us with digestive sensitivity. Taking with food as recommended, no issues at all. Knees feel stronger after 3 months.
Questions & answers
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