Pro Bono Ortho Molecular: Bone Support Ingredients & Dosage

Samantha Okafor taught high school chemistry for twenty-six years, and she still reads a lab report the way she used to grade one: units first, then the numbers. So when her DEXA results came back with a T-score of -1.8 at the hip, and her integrative practitioner wrote Pro Bono Ortho Molecular on the back of an appointment card, she didn't panic. She looked up what a T-score actually measures, then looked up what was in the box.

Samantha is 58, walks every morning, and already takes a multivitamin she picked up at the pharmacy. What she wanted to know before buying anything was simple. What's in it, how much, and does anything in it make the next scan harder to read?

Pro Bono Ortho Molecular is a two-packet daily bone formula. The AM packet supplies strontium citrate, magnesium and a broad vitamin and trace-mineral base. The PM packet supplies 1,000 mg of calcium (as hydroxyapatite and a malate-bound calcium) plus phosphorus, with vitamin D3 and vitamins K1 and K2 split across both. It's designed for adults who want nutritional support for healthy bone density, strength and bone remodeling. The label dose is one AM packet and one PM packet daily; one box of 60 packets lasts 30 days at that dose. Pregnant or nursing women should not use it.

What is Pro Bono Ortho Molecular?

Pro Bono is a complete bone-nutrient protocol packaged as two different daily packets rather than one pill taken twice. That packaging is the most important design decision in the product, and it's there for a chemical reason: strontium and calcium compete for the same absorption pathways in the gut. Ortho Molecular puts the strontium in the morning packet and the calcium in the evening packet so the two aren't fighting each other at the same meal.

Ortho Molecular describes bone as tissue that's constantly being rebuilt. Osteoclasts break old bone down (resorption), and osteoblasts lay new matrix in its place (formation). The company's stated goal for Pro Bono is to supply nutrients that help maintain a healthy ratio between those two cell types, along with the raw minerals new bone is made of.

The formula also carries a full spread of B vitamins, vitamins A, C and E, and trace minerals such as zinc, copper, manganese, selenium, chromium, molybdenum and iodine. In practice, that means Pro Bono covers most of what a multivitamin covers. That matters for Samantha, and we'll come back to it.

What separates this from a drugstore calcium chew is mostly form and completeness. The minerals are largely chelated (bound to amino acids, including Albion TRAACS forms) rather than oxides or carbonates. The folate is Quatrefolic 5-MTHF, the active form, rather than folic acid. The B12 is methylcobalamin. And the bone nutrients arrive together instead of as five separate bottles you have to coordinate yourself. Ortho Molecular sells through healthcare practitioners, which is why products like this are usually recommended in a clinic rather than discovered on a shelf.

Pro Bono - 60 CT

$125.80

Pro Bono® by Ortho Molecular Products – Comprehensive Bone Support for Strength and Density Pro Bono® by Ortho Molecular Products is a clinically designed bone… Click here to read more

What's in Pro Bono, and how do the ingredients work?

The daily totals below come from the Supplement Facts panel for two Pro Bono Ortho Molecular packets (one AM, one PM).

Strontium citrate (AM packet)

Strontium sits directly below calcium on the periodic table, and bone treats it as a near-relative. It's taken up into the mineral lattice where calcium would normally go. Ortho Molecular states that strontium supports bone by encouraging osteoblast formation and discouraging osteoclast formation, and that it has an anabolic effect by stimulating bone morphogenetic proteins and mineral deposition. The label lists strontium citrate at 1 g in the AM packet and none in the PM packet. That AM-only placement is deliberate, for the absorption reason above.

Strontium is also the ingredient with the biggest catch, which gets its own section further down.

Calcium as hydroxyapatite and malate (PM packet)

About 99% of the calcium in an adult body is in the skeleton, bound with phosphorus as a mineral called hydroxyapatite. Pro Bono uses that same mineral as one of its calcium sources, which is why the PM packet also delivers 360 mg of phosphorus. The rest of the 1,000 mg comes from a malate-bound calcium, chosen for absorption. Ortho Molecular notes that a commonly advised intake is 1,000 to 1,500 mg per day from all sources. Read that last part twice: dairy, leafy greens, fortified foods and any other supplement all count toward it.

Vitamin D3 (1,000 IU daily)

Calcium in a capsule doesn't help much if it isn't absorbed. Vitamin D3 (cholecalciferol) supports the absorption of calcium and phosphate from the digestive tract. Pro Bono provides 500 IU in each packet, 1,000 IU a day. That's a moderate dose. People with a low blood level of vitamin D are often given more by their practitioner, so if you've had a 25(OH)D test, bring the number to that conversation.

Vitamins K1 and K2 (500 mcg K1 + 25 mcg MK-7 daily)

Vitamin K activates osteocalcin, a protein made by osteoblasts that binds calcium and helps anchor it in the bone matrix. Without enough vitamin K, osteocalcin is produced but stays partly inactive. Ortho Molecular also says vitamins K1 and K2 decrease osteoclast activity and work with D3 to improve calcium absorption.

Here's a detail most product write-ups skip. The best-known clinical trial of K2 for bone, a three-year study of MK-7 in healthy postmenopausal women, used 180 mcg of MK-7 a day. Pro Bono gives you 25 mcg of MK-7 and leans on K1 (500 mcg) for most of its vitamin K. Both forms activate osteocalcin, so this isn't a flaw. But if you've read about MK-7 specifically and expect a trial dose, this isn't it. Ortho Molecular's separate vitamin K and D3 formula is covered in our post on K-Force.

Magnesium (400 mg daily)

Roughly half the body's magnesium is stored in bone. Ortho Molecular describes it as aiding calcium absorption, acting as a cofactor for alkaline phosphatase (an enzyme osteoblasts use to mineralize new bone) and supporting the conversion of vitamin D3 into its active form. Pro Bono splits 400 mg across the day, 267 mg in the AM packet and 133 mg in the PM, using dimagnesium malate, magnesium citrate and a lysinate glycinate chelate. Many American adults don't meet the estimated average requirement for magnesium from food, so this is one of the more useful amounts in the formula.

Boron (5 mg daily)

Boron is a trace mineral most people have never thought about. Ortho Molecular cites research in postmenopausal women in which boron supplementation reduced the amount of calcium and magnesium lost in urine. Fewer minerals out means more available for bone. Pro Bono uses bororganic glycine, 2.5 mg per packet.

The supporting cast: vitamin C, B vitamins and trace minerals

Bone isn't only mineral. Underneath the calcium is a collagen framework, and the body needs vitamin C to build collagen. Pro Bono supplies 500 mg a day. Zinc, copper and manganese act as cofactors for enzymes involved in forming that matrix. The B vitamins (including 800 mcg of folate as 5-MTHF and 500 mcg of methylcobalamin daily) round out what Ortho Molecular calls a "full spectrum" of nutrients involved in mineralization.

Who may benefit from Pro Bono?

• Women past menopause whose practitioner has suggested nutritional bone support and who'd rather take two packets than coordinate five bottles.
• Someone like Samantha who is not already taking a multivitamin, or who is willing to stop the one they're on, since Pro Bono covers that ground.
• Adults who struggle to reach 1,000 mg of calcium from food, for example because they avoid dairy.
• People losing weight quickly, including on GLP-1 medications, who want to make sure bone-related nutrients are covered. Our guide to bone health on GLP-1 medications explains why this comes up, and your prescriber should be part of that decision.
• Anyone whose practitioner wants strontium in the plan and prefers it already separated from calcium by design.

Who should not take Pro Bono?

• Do not use if pregnant or nursing. This is the label's warning, stated as written.
• People taking warfarin (Coumadin) or another vitamin K antagonist. Pro Bono supplies 500 mcg of vitamin K1 a day. Don't start it without your prescriber's sign-off, because it can change how the medication works.
• People who are about to have, or are being tracked with, DEXA scans and haven't told their doctor about strontium. See below.
• People already taking a full multivitamin who plan to keep taking it. Doubling up on vitamin A, B6, selenium and iodine is easy here.
• Anyone with kidney disease, a history of kidney stones, or a thyroid condition should talk with their doctor first, given the calcium, strontium and iodine content.

How does Pro Bono Ortho Molecular compare to other bone supplements?

The fairest comparison is with Ortho Molecular's own OsteoPrev, plus a do-it-yourself approach of standalone strontium alongside a basic calcium, D3 and K product.

OsteoPrev genuinely wins on one point: without strontium, your next DEXA scan can be compared directly with your last one. If you already take a good multivitamin and don't want strontium, OsteoPrev is probably the better fit. Pro Bono Ortho Molecular wins when your practitioner wants strontium and you'd rather not manage the calcium-strontium timing yourself. If you want to build your own stack, our post on strontium citrate by Pure Encapsulations covers the standalone option.

If you're not sure which of these fits your situation, Holistic Health Partners offers a free product consultation. We don't want you to buy more supplements. We want you to buy the right ones.

How much Pro Bono should I take, and when?

The label dose is two packets a day: one AM packet in the morning and one PM packet in the evening, or as recommended by your healthcare practitioner. For maintenance, Ortho Molecular suggests one packet a day, alternating: AM packets on odd-numbered days and PM packets on even-numbered days. At that pace, one box of Pro Bono Ortho Molecular lasts two months instead of one.

The one rule that matters: don't take the AM and PM packets together. The whole point of two packets is to keep strontium and calcium apart so each is absorbed properly. Taking them at the same time to save a step defeats the design.

The label doesn't say whether to take Pro Bono with or without food. If mineral supplements upset your stomach, taking each packet with a meal is a sensible default. Ask your practitioner if you take thyroid medication or certain antibiotics, since calcium and other minerals can interfere with how those are absorbed, and the timing usually needs to be spread out.

Set realistic expectations on timing. Bone remodels slowly; a single remodeling cycle takes months, and follow-up bone density scans are usually spaced a year or more apart. Pro Bono isn't something you'll feel working. It's something you commit to and evaluate with your practitioner over a long stretch.

What won't Pro Bono do?

It won't make your next DEXA scan a clean comparison. This is the part most bone-supplement articles leave out. Strontium is a heavier element than calcium, so it absorbs more of the X-rays a DEXA machine uses. Bone that contains strontium therefore looks denser on the scan than it actually is. Researchers have calculated that strontium replacing just 1% of the calcium in bone can push a DEXA reading up by roughly 10% (Journal of Clinical Densitometry, 2007). An improvement on the scan after starting strontium may be partly real and partly the strontium itself, and the scan alone can't tell you which. Tell whoever orders and reads your scans that you're taking Pro Bono Ortho Molecular, not just "a calcium supplement." For Samantha, the former chemistry teacher, this was the deciding detail.

It isn't a treatment for osteoporosis. If you've been diagnosed, Pro Bono can be part of a nutritional plan, but it doesn't replace the medical conversation about prescription options. Don't stop a prescribed bone medication to switch to a supplement.

It doesn't replace weight-bearing exercise. Ortho Molecular itself points out that bone density is shaped by physical activity, not smoking, stress and hormonal balance. Bone responds to load. Minerals give it material; walking, stair climbing and resistance training give it the signal to use that material.

It isn't the right choice if you won't give up your multivitamin. Taking both means stacking vitamin A, B6, selenium, iodine and zinc twice. If your multivitamin is one you trust, a narrower bone formula without the vitamin base is the more sensible pick.

Its strontium isn't the strontium from the big clinical trials. Most large human studies of strontium for bone used strontium ranelate, a prescription drug in some countries. Strontium citrate, the form in supplements, has far less published research behind it, and results from ranelate studies can't simply be assumed to carry over.

Pro Bono - 60 CT

$125.80

Pro Bono® by Ortho Molecular Products – Comprehensive Bone Support for Strength and Density Pro Bono® by Ortho Molecular Products is a clinically designed bone… Click here to read more

Is Pro Bono safe? Interactions and warnings

Do not use if pregnant or nursing. That is the label warning, and it applies regardless of what your other supplements say.

Warfarin and vitamin K. Pro Bono contains 500 mcg of vitamin K1 and 25 mcg of K2 per day. According to the NIH Office of Dietary Supplements, vitamin K can interact seriously with warfarin, and sudden changes in vitamin K intake can affect how well the drug works. If you take warfarin, don't start or stop Pro Bono without talking to the prescriber who manages your dose.

Tell your doctor about the strontium before any bone density scan. It changes how the results should be read.

Watch for overlap. Two packets supply 4,000 IU of vitamin A (from mixed carotenoids and palmitate), 50 mg of vitamin B6, 200 mcg of selenium, 150 mcg of iodine and 15 mg of zinc. Add those to any multivitamin, prenatal-style formula or standalone mineral you already take before deciding.

Iodine and chromium. Pro Bono includes iodine from kelp and chromium polynicotinate. If you have a thyroid condition or take medication for blood sugar, mention this to your practitioner.

Pro Bono is gluten-free, yeast-free and free of artificial colors, flavors and preservatives.

As with any supplement, consult your healthcare provider before use, especially if you are pregnant, nursing, or taking medications.

Is Pro Bono Ortho Molecular worth it?

It's worth it for a specific person: someone whose practitioner wants strontium in a bone plan, who isn't attached to their current multivitamin, and who values having calcium and strontium separated for them. For that person, Pro Bono Ortho Molecular replaces several bottles with two packets and gets the timing right by design.

It's not the right pick if you want bone density scans you can compare directly from year to year, if you take warfarin and don't want to adjust anything, or if you'd rather keep your multivitamin. OsteoPrev or a simpler calcium, D3 and K formula makes more sense there.

The honest trade-off is clarity for completeness. You get one of the most thorough bone-nutrient packets available, and in exchange, your DEXA numbers need an asterisk.

Samantha ended up taking her appointment card, her pharmacy multivitamin and a printed Supplement Facts panel back to her practitioner, and asked about the strontium before she asked about anything else.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.