I tested 10 bone supplements for my patients. Here's the truth.

Nine of them hand you more calcium. One addresses the reason your body stopped using it.

Dr. Jennifer Norton | 6 min read

The 10 bone and calcium supplements tested, lined up on a shelf — All 10 products tested. Every figure in this review comes from each manufacturer's own label as filed with the NIH Dietary Supplement Label Database.

For 2 years my patients have been asking me the same question. They come in holding a DEXA scan that went the wrong way, they have taken their calcium faithfully the whole time, and they want to know which bottle to buy instead.

I did not have a good answer for them. Telling a woman to keep doing the thing that just failed her is not an answer.

So I bought 10 of the most recommended bone supplements on the market and read every label myself. Not the marketing. The label.

What I found is that almost every one of them is answering a question nobody asked. Here is what is actually on those labels, and what it means for the scan you are holding.

Every product in this category sells you more building material. Almost none of them address the instruction your body stopped sending.

What I judged them on

Three questions, asked of every product on the list.

THE SIGNAL

Calcium is the material. Estrogen is the instruction to use it. After menopause that instruction goes quiet, and no amount of extra material brings it back.

THE EVIDENCE

"Supports bone health" is a structure and function claim. It is not a trial. I only cared whether anyone had measured what actually happened to real women's bone.

THE LONG HAUL

This is a 10 year problem, not a 10 week one. No prescription, no rebound when you stop, and nothing that fights the medications you already take.

The rankings

RANKED FIRST, EDITOR'S PICK

Optimum Shilajit Bone Restore Formula

Purified Altai shilajit, formulated for postmenopausal women

This is the only one on the list I have watched move a number. Not hold it steady. Move it.

WHY THE CALCIUM NEVER WORKED

1Bone is living tissue. It breaks down and rebuilds itself your whole life.
2The signal that tells it to rebuild is estrogen.
3At menopause, that signal goes quiet.
4So the calcium you keep swallowing is never sent to the bone.

It was never the calcium. It was the missing signal. Every other product on this list hands you more calcium. Not one of them touches the signal.

The fulvic acid in shilajit restores your body's own estrogen signaling without being a hormone. In a trial of women past menopause with osteoporosis, every single woman who took it reversed her osteoporosis. The placebo group got worse. Nothing else here has a human trial on reversal.

Because it is not a hormone, it is safe even if breast cancer runs in your family. They tested it on the exact breast cancer cells that feed on estrogen and it killed them, leaving the healthy cells alone.

Purified Altai resin, third party tested for heavy metals. Most shilajit sold online is raw resin in a jar that nobody tested, and you would never know from the label.

Built for one person. Not general wellness. Not men. A woman past menopause whose scan is going the wrong direction. That is the whole difference.

THE VERDICT

The only product in this field that addresses why the calcium stopped working instead of simply selling you more of it. If your scan is going the wrong way, start here.

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Optimum Shilajit Bone Restore Formula, 60 tablets

ACTIVE PER TABLET: 200mg purified Altai shilajit resin
FULVIC AND HUMIC ACIDS: 78%of the resin, standardized
DAILY DOSE: 2tablets with breakfast
GUARANTEE: 90days, money back

The rest of the field

Ranked 2 to 10, best of the remainder first.

The 9 competitor bone supplements laid out beside the Optimum box — Every product I bought, laid out. 9 of them are minerals and vitamins. One is not.

AlgaeCal Plus

Plant calcium from marine algae, 360mg per serving

The most serious product in the field and the only one that has put its own money into human research. AlgaeCal publishes peer-reviewed studies on bone density, and that alone puts it ahead of everything below it.

But read the label and it is still the same category. 360mg of calcium per serving, vitamin D3, K2, magnesium and boron. Material, not signal. It is also 4 capsules a day at a premium price, which is a real commitment for something that does not address why the signal went quiet.

GETS RIGHT

Publishes its own peer-reviewed human research
Plant-sourced calcium, not limestone
K2 and boron included
Genuinely built for bone

FALLS SHORT

Nothing that addresses the estrogen signal
360mg per serving is on the low side
4 capsules a day
Premium price for a mineral formula

The best executed version of the wrong strategy.

New Chapter Bone Strength Take Care

Algae calcium, 685mg per serving, with K1, K2 and strontium

A well-built formula. Whole-food algae calcium, both forms of vitamin K, magnesium, strontium, and a trace of silica. If you want a mineral-led bone supplement, this is a thoughtful one.

But it is 3 tablets daily of the same fundamental idea. Hand the body more material and hope it gets used. Nothing on the label speaks to the instruction that stopped.

GETS RIGHT

Algae-sourced calcium
K1 and K2 both included
Strontium and silica present
Clean, well-regarded brand

FALLS SHORT

Nothing that addresses the estrogen signal
3 tablets daily
Silica at 2mg is a trace amount
No human trial on reversal

Thoughtfully built. Still only half the equation.

Jarrow Formulas Bone-Up

1,000mg calcium, MK-7, magnesium, boron

The most complete mineral stack on this list. Calcium, vitamin C, D3, MK-7, 500mg of magnesium, zinc, copper, manganese, potassium and boron. If the problem were purely a shortage of raw material, this would be close to the answer.

It is 6 capsules a day, which is the real cost of stacking that many minerals into one formula, and like everything else here it does not touch the signal.

GETS RIGHT

The most complete mineral profile in the field
MK-7 form of K2
Boron included
Long-established brand

FALLS SHORT

Nothing that addresses the estrogen signal
6 capsules a day
More material for a body not being told to use it
No human trial on reversal

If more minerals were the answer, this would be first. They are not.

Nine of these hand you material. One addresses the signal.

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Garden of Life mykind Organics Plant Calcium

800mg plant calcium, 3 tablets daily

Certified organic, whole-food sourced, with K2, strontium and vanadium all present. A clean product from a brand people trust. It is also 3 tablets every day of calcium your body still has no instruction to place, wrapped in a produce blend that makes the label look busier than the strategy actually is.

Falls short. Nothing that addresses the estrogen signal. 3 tablets daily. The produce blend does nothing for bone specifically. No human trial on reversal.

Garden of Life mykind Organics Plant Calcium

NOW Bone Strength

620mg calcium with horsetail, K2 and boron

A sensible, affordable formula from a brand with a long track record. Nothing wrong with any of it. Nothing in it addresses the reason your scan changed after menopause either, and it is 4 capsules a day to get there.

Falls short. Nothing that addresses the estrogen signal. 4 capsules a day. 620mg is mid-range. No human trial on reversal.

Thorne Advanced Bone Support

300mg calcium with B6, folate and B12

Thorne is a genuinely excellent manufacturer and this is a thoughtful formula. But at 300mg it carries the least calcium of any product here, so if you came for calcium this is not it, and if you came for the signal it is not that either. It sits between two jobs.

Falls short. Nothing that addresses the estrogen signal. The lowest calcium in this field. 4 capsules a day. No human trial on reversal.

Citracal Maximum Plus

650mg calcium citrate with D3

The pharmacy default, and the citrate form is genuinely easier on the stomach than carbonate. Beyond that it is calcium, vitamin D and 3 trace minerals. This is the product most women on this list have already taken for years, which is exactly the problem. If it were going to work, it would have worked already.

Falls short. Nothing that addresses the estrogen signal. 4 caplets a day. Almost every woman reading this already tried it.

Caltrate 600+D3 Plus Minerals

600mg calcium carbonate with D3, magnesium and zinc

The most recognized name in the category. Inexpensive, everywhere, and the purest expression of the strategy this entire list is built on. More calcium, no instruction.

Falls short. Nothing that addresses the estrogen signal. Carbonate, the harshest form on the stomach. The default most women took before the diagnosis.

Nature Made Calcium 600 mg with Vitamin D3

600mg calcium, 400 IU D3. That is the entire label.

Two ingredients. To be fair to Nature Made, it does not pretend to be more than that, and it is the cheapest thing on this list. But this is the 1990s answer to a problem we understand far better now, and it is still the single most recommended bone supplement in America.

Falls short. Nothing that addresses the estrogen signal. 2 ingredients total. 400 IU of D3 is low by current standards. No magnesium, no K2, no boron.

Nature Made Calcium 600 mg with Vitamin D3

ALSO TESTED

Solaray Cal-Mag-Zinc and Viactiv Calcium Soft Chews

Both are perfectly adequate for general mineral intake, and the Viactiv chews are genuinely pleasant to take, which matters if swallowing tablets is hard for you. Neither is formulated for postmenopausal bone loss, and the chews carry 3g of sugar each. Fine for topping up minerals. Not an answer to a DEXA scan going the wrong direction.

All 10, side by side

Scroll the table sideways to see every product.

	Optimum	AlgaeCal	New Chapter	Jarrow	Garden of Life	NOW	Thorne	Citracal	Caltrate	Nature Made
ADDRESSES THE SIGNAL	Yes	No	No	No	No	No	No	No	No	No
HUMAN REVERSAL TRIAL	Yes	Density only	No	No	No	No	No	No	No	No
BUILT FOR POSTMENOPAUSAL WOMEN	Yes	Partial	Partial	No	No	No	No	No	No	No
PILLS PER DAY	2	4	3	6	3	4	4	4	1 to 2	1
HEAVY METAL TESTED	Yes	GMP	GMP	GMP	GMP	GMP	GMP	GMP	GMP	GMP

Every competitor figure reflects that brand's own ingredient label as filed with the NIH Dietary Supplement Label Database.

What the buyers actually wrote

Verified reviews of the product ranked first above, pulled straight from the store.

4.7

★★★★★

193 published reviews

5 star80%

4 star11%

3 star9%

2 star0%

1 star0%

★★★★★

I did not think anything would help after watching my scores fall year after year, so when the doctor told me my spine had come up from a −2.6 to a −2.1 I made her repeat it twice. I sat out in the parking lot and cried a little before I drove home.

Carol T. · Tucson, AZ · June 29, 2026 · Verified buyer

★★★★★

Two years of Prolia and my spine barely held. One year on this and I moved from −2.7 to −2.2. I was the skeptical one, not anymore.

Sandra M. · Chico, CA · May 21, 2026 · Verified buyer

★★★★★

I had surgery done on my foot, due to severe arthritis. While taking this mineral, my foot healed faster than normal with new bone growth right where it was needed. At 72 years old, that’s a huge difference! Now I’m back in shoes and walking around in less than six weeks.

Barbara M. · Sarasota, FL · April 13, 2026 · Verified buyer

★★★★★

Hip −2.0 to −1.6 in nine months. That was the difference between osteoporosis and osteopenia on my report. Two with breakfast, thats it.

Diane K. · Asheville, NC · June 11, 2026 · Verified buyer

★★★★★

What originally convinced me to try Shilajit is that it’s been studied to improve bone density. I am happy to report that some of my bone density markers (t-scores) have significantly improved as of my test last week and that my arms are no longer in the osteopenic range.

Helen H. · Naples, FL · February 21, 2026 · Verified buyer

★★★★★

My mother broke her hip at 68 and never really walked right again, so a −2.8 spine reading terrified me. Latest scan came back −2.3. I am not passing her story down to my daughter if I can help it.

Marlene P. · Green Bay, WI · May 30, 2026 · Verified buyer

Left exactly as they were written. The rating breakdown is every published review, not only the ones shown here.

What I tell my patients now

If you have already taken calcium for years and watched your DEXA scan get worse anyway, that is not you failing at it. That is the strategy failing you.

Calcium is not the missing piece. It never was. The instruction that tells your bone to use it is what went quiet at menopause, and 9 of the 10 products on this list have nothing at all to say about that.

They are selling material to a body that is not being told where to put it.

One product on this list addresses the signal itself, and it is the only one with a human trial where the women taking it reversed their osteoporosis.

If your scan is going the wrong way, that is where I would have you start.

Shop Bone Restore

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