Koru Nutrition
★★★★★ 4.6 average · Koru Protect reviews
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Bone health after 55

Your vitamin D is doing half a job

About a third of your bone is collagen, not mineral. Vitamin D3 and K2 don't build collagen. Koru Protect gives your bones all four nutrients they are made from, in two capsules a day.

✓The full 1,000 IU of vitamin D3 a day
✓Plus vitamin K2, vitamin C and zinc. The combos leave two of these out
✓Made in Rangiora, NZ · 60-day money-back guarantee
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From $29.99 a bottle·Ships from Rangiora
Koru Protect bottle and box
NZMADE IN
RANGIORA
4BONE NUTRIENTS
ONE CAPSULE
ALSO SEEN IN The New Zealand HeraldStuffWaikato TimesStar NewsSouthland ExpressNewstalk ZB

Whether you take something already or nothing at all

Some people we talk to are already taking something for their bones. A vitamin D capsule from the pharmacy. The funded monthly one. Or, if they've read a little further, a D3 + K2 combination. Plenty are taking nothing at all, and are not sure where to start.

If you already take vitamin D, that's a good start. It helps your body absorb calcium, and vitamin K2 helps direct that calcium to your bones rather than leaving it floating around. If you take nothing yet, those are the first two of four.

Here is the part almost nobody mentions on the label. Calcium needs something to hold on to.

Bone isn't a lump of mineral. It's a living framework of collagen, a protein scaffold, with mineral packed into it. Roughly two-thirds mineral, one-third scaffold. Your body rebuilds that scaffold constantly, and to do it, it needs two nutrients that no D3 capsule and no D3 + K2 combination contains: vitamin C and zinc.

What bone is made of
Illustration: a magnifier over a piece of bone shows navy mineral crystals packed inside a green collagen lattice
About 2/3 mineral
calcium and friends, absorbed and placed by D3 + K2
About 1/3 scaffold
collagen framework, built with vitamin C + zinc

Take the scaffold away and there is nowhere for the calcium to go.

D3 and K2 work on the mineral side: get calcium in, send it to bone.
Vitamin C and zinc work on the scaffold: build the framework the calcium is going to.

"D3 gets the calcium in. K2 tells it where to go. Vitamin C and zinc build the framework it's going to. Miss the last two and you've only done half the job."

A woman in her sixties tying a young rose to a stake in her Canterbury garden in early spring
Why now

September is when it matters most

Here in New Zealand, vitamin D levels follow the sun. They climb through summer and drain away over winter. By September most of us are near the lowest point of the year, lower than in June, because the stores built up last summer are gone and spring sunshine hasn't topped them back up yet.

So the month you're most likely to feel like easing off the vitamin D is the month your body has the least of it.

WINTER JanFebMarAprMayJunJulAugSepOctNovDec Summer stores full Lowest point of the year vitamin D stores Illustration of the seasonal pattern, not measured data.

Vitamin D stores in New Zealand adults are usually lowest in late winter and early spring.

From Rangiora with love

We make this one ourselves

Koru Nutrition is a family New Zealand company based in Rangiora, North Canterbury. We formulate our products and make them in our own facility rather than buying in a generic formula and putting a label on it.

That matters with Koru Protect, because the formula is built around how bone is actually put together, not around what's cheapest to put in a capsule. And like everything we make, it's built for how your body works after 55. We absorb less of what we swallow as we get older, so we choose forms the body can take up rather than the cheapest version of each nutrient. You may already know us from Koru Joint or Koru FX. Koru Protect is made in the same place, by the same people.

Made in New ZealandOwn facility, RangioraSold in pharmacies nationwide
Koru Protect bottle and box with orange, lime and avocado
The formula

Four nutrients. One job each.

Amounts per two-capsule daily serve, as declared on the label.

FOOD calcium Vitamin D3ABSORB it Vitamin K2DIRECT it BONE Vitamin CBUILD the scaffold ZincSET it in place
Absorb

Vitamin D3

1,000 IU (25 mcg)

Supports your body's absorption of calcium from food. The same 1,000 IU a day you'd get from a good single-ingredient vitamin D, in the D3 form your skin makes from sunlight.

Direct

Vitamin K2

MK-7 100 mcg + MK-4 1,000 mcg

Supports the normal process that directs calcium to bone. MK-7 is the longer-acting form of K2, so a daily dose keeps working between capsules.

Build

Vitamin C

974 mg, part-buffered

Supports normal collagen formation, the protein framework that makes up about a third of your bone. Also supports normal immune function, which is how Koru Protect earned its name.

Set

Zinc

11 mg, as zinc gluconate

Supports bone health and normal immune function. Zinc is a cofactor for the enzymes involved in building bone.

Vitamin D also supports normal muscle function. Always read the label and take as directed. Supplementary to a balanced diet. View the full label

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Built for after 55

The dose on the label isn't the whole story

After 55 your body absorbs less of what you swallow. Stomach acid drops, digestion slows, and a nutrient in the wrong form can pass straight through. So with Koru Protect, as with every Koru product, we chose each form for absorption first.

You won't find vitamin C, zinc or a fat carrier in the D3 + K2 combinations on the pharmacy shelf. You'll find all three here.

Illustration of an opened two-tone capsule with orange, navy and green granules and an amber oil droplet spilling out
✓Vitamin D3, not D2. The form your skin makes from sunlight and the form the body uses directly.
✓Vitamin K2 as MK-7. The longer-acting form, alongside MK-4.
✓Vitamin C part-buffered. Ascorbic acid with sodium ascorbate, easier on the stomach at close to a gram a day.
✓Phosphatidylcholine. Vitamin D3 and K2 are fat-soluble, which means they need fat to be absorbed. We include this natural phospholipid to help them disperse.
✓Two capsules, 30 minutes before a meal. That's your full day's D3, K2, vitamin C and zinc in one go.

What's in yours?

Solo vitamin D covers one of the four. A D3 + K2 combination covers two. Koru Protect covers all four.

1 of 4Solo vitamin D2 of 4D3 + K2 combo4 of 4Koru Protect
Single-ingredient vitamin D
Typical D3 + K2 combo
Koru Protect
Vitamin D3
✓ 1,000 IU
✓ 1,000 IU
✓ 1,000 IU
Vitamin K2
✕
✓
✓ MK-7 + MK-4
Vitamin C for collagen
✕
✕
✓ 974 mg
Zinc
✕
✕
✓ 11 mg
Fat carrier for the D3 and K2
softgel oil, varies
✕
✓ phosphatidylcholine
Made in New Zealand
varies
mostly Australia
✓ Rangiora

1,000 IU a day is the amount every product in this table gives you. The difference is the rows beneath it.

Already a Koru customer?

Your joints hang on your bones

Cut-away illustration of a weatherboard house: green timber joinery standing on a solid navy concrete foundation
Koru Joint: the joinery. Cartilage, lubrication, soft tissue.
Koru Protect: the foundation. Your bones.

Joinery only holds if the foundation does.

If you take Koru Joint or use Koru FX

You're already looking after the cartilage, the lubrication and the soft tissue. Koru Protect looks after the structure all of that is attached to.

Think of it as the foundation under the house. Koru Joint is the joinery. Koru Protect is what the joinery is fixed to. Two capsules of Protect before breakfast sit alongside your Koru Joint.

If you take Koru Advanced Collagen

Collagen can't be made without vitamin C. You're giving your body the building blocks; vitamin C and zinc are what it uses to assemble them.

Koru Protect supplies both, plus the D3 and K2 your bones need to put the finished product to work.

Three steps

1

Choose your supply

One bottle to try it, or two bottles for the best price per day. Ships from Rangiora.

2

Two capsules, 30 minutes before a meal

That's your full day's D3, K2, vitamin C and zinc. Keep the bottle by the kettle.

3

Give it two months

Bones are built slowly, so judge it over the full two months. That's what the two-bottle pack is for.

One-time purchase

Choose your Koru Protect

One bottle
TRY IT
Koru Protect, 1 bottle
30 days · 60 capsules · one-time purchase
$39.99
$1.33 / day
Add one bottle
Best value
Two bottles
SAVE $20
Koru Protect, 2 bottles
60 days · one-time purchase
$79.98$59.98
$1.00 / day
Add two bottles
60DAY
GUARANTEE

Ships from Rangiora within one business day. Every order carries the 60-day money-back guarantee. If it's not for you, ring 0800 99 99 80 (Mon to Fri, 9am to 5pm) and we refund you, empty bottles included.

What customers say

Verbatim from verified Koru Protect reviews and recorded customer calls. First names only.

★★★★★✓ VERIFIED

"I was taking vitamin C, D and zinc but didn't realize I should be taking vitamin K."

Denise W. · verified review
★★★★★✓ VERIFIED

"I am extremely happy with Koru Protect it has all the vitamins and minerals I want all wrapped into the one capsule."

Yvonne D. · verified review
★★★★★✓ VERIFIED

"Great product. Vitamin C, K and D all together in one easy supplement."

George · verified review
★★★★★✓ CUSTOMER CALL

"The Protect has everything I want in it. That's what I found interesting, it had what I wanted: the vitamin D, the zinc, the vitamin C, which I was taking most of anyway over the winter."

Donna · social worker, recorded call
★★★★★✓ CUSTOMER CALL

"I like the fact that you're local and good service, and they seem to do what they say they do. The ingredients in yours is what appealed."

Jane · recorded call
★★★★★✓ VERIFIED

"Great balance with the vit. D, helps with general well being, highly recommend."

Sandra B. · verified review

The cost of half a job

Nothing dramatic happens if you keep taking solo vitamin D. It'll keep doing its one job.

But you'll keep spending money every month on a capsule that supports one of the four things your bones need, and leaving the other three to chance. And you'll be doing it through the one time of year, right now, when your levels are lowest.

For about a dollar a day, you can cover all four.

Questions people ask before they start

I already take the monthly vitamin D capsule from my doctor. Can I take this as well? +

If you've been prescribed vitamin D, talk to your pharmacist or doctor before adding Koru Protect. They'll tell you whether to take both or swap.

I take warfarin or another blood thinner. +

Koru Protect contains vitamin K2, and the label says not to take it if you are currently taking blood-thinning medication. Please talk to your doctor first.

Can I take it with Koru Joint or Koru Advanced Magnesium? +

Yes. Koru Advanced Magnesium carries 1,000 IU of vitamin D3 of its own, so the two together give you 2,000 IU a day, which stays inside the recommended upper limit for adults. If you have any concerns, ask your pharmacist.

Why two capsules rather than one? +

Because we've put four nutrients in at meaningful amounts, close to a gram of vitamin C alone, rather than two nutrients in a one-a-day. Two capsules before a meal is the trade-off.

Why only 1,000 IU of vitamin D? +

That's the most a dietary supplement is permitted to contain in New Zealand. Koru Protect gives you the full amount, then adds the three nutrients most vitamin D products leave out.

Isn't Koru Protect an immunity product? +

It's both. Vitamin C, zinc and vitamin D all support normal immune function, which is why it's been popular through winter. The same four nutrients are what bone is built from, which is why it makes sense year round.

Why is there phosphatidylcholine in it? +

Vitamin D3 and K2 are fat-soluble. They need fat to be absorbed, which is why most vitamin D products are oil-filled softgels. Koru Protect is a capsule, so we include phosphatidylcholine, a natural phospholipid, to give the D3 and K2 something to disperse with.

Is it made in New Zealand? +

Yes. Formulated and made in our own facility at 5 Kingsford Smith Drive, Rangiora, North Canterbury. Made in a facility that also processes fish and crustacean ingredients. Gelatine capsule.

What if it's not for me? +

Ring 0800 99 99 80 within 60 days, Monday to Friday 9am to 5pm, and our Rangiora team will refund you, empty bottles included. No forms, no returns.

Give your bones all four

Your vitamin D isn't wrong. It's just not finished. Two capsules before breakfast, and the D3, K2, vitamin C and zinc your bones are built from are covered.

Get Koru Protect →
From $29.99 a bottle · 60-day money-back guarantee
Koru Protect bottle with orange, lime and avocado

Interested in finding out more about our other products?

Everything we make is made for people over 55. Tap any product to read more.

Koru JointKoru JointThree jobs inside the joint, one capsuleFind out more → Koru FXKoru FXFast-acting cream for joints and musclesFind out more → Koru FX ProKoru FX ProProfessional-grade cream for larger joints and musclesFind out more → Koru SleepKoru SleepSleep through the night, wake up clearFind out more → Koru Gut RestoreKoru Gut RestoreAn advanced synbiotic for gut balanceFind out more → Koru Volcanic DetoxKoru Volcanic DetoxA gentle daily cleanse for adults 55+Find out more → Koru Advanced Vitamin CKoru Advanced Vitamin CDual-form vitamin C, gentle on the stomachFind out more → Koru Advanced CollagenKoru Advanced CollagenNZ marine collagen for skin, hair and nailsFind out more → Koru RevitacellKoru RevitacellComplete NAD+ support with NMN and CoQ10Find out more →
Koru Nutrition · 5 Kingsford Smith Drive, Rangiora, Canterbury 7400 · 0800 99 99 80 · info@korunutrition.co.nz
Koru Protect is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease. Always read the label and take as directed. Supplementary to a balanced diet. If symptoms persist, see your healthcare professional. Do not take if you are currently taking blood-thinning medication. You may wish to seek advice from your medical professional on your suitability to use this product if you are on any form of medication, pregnant or nursing. Manufactured in a facility that also processes fish and crustacean based ingredients. Gelatine capsule.
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