Bisphosphonates

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Geranylgeraniol for Bisphosphonate-Related Osteonecrosis of the Jaw — A Second Critical Application


Reproduced from original article:
https://articles.mercola.com/sites/articles/archive/2026/05/17/geranylgeraniol-for-bronj-prevention.aspx


Analysis by Dr. Joseph Mercola     
May 17, 2026

geranylgeraniol for bronj prevention

Story at-a-glance

  • Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a serious complication affecting patients taking osteoporosis and cancer medications like Fosamax, Boniva, and Zometa, and once the jaw bone dies, there is currently no effective treatment
  • Bisphosphonates work by the same mechanism as statins — they inhibit the mevalonate pathway — which means they cause the same depletion of geranylgeraniol (GG) that leads to statin muscle problems
  • Research shows that GG can reverse the negative effects of bisphosphonates on osteoblasts (bone-building cells), osteoclasts (bone-remodeling cells), fibroblasts, and endothelial cells — the key cell types involved in jaw bone health and healing
  • A 2024 study demonstrated that GG incorporated into bone cement promoted osteoclast function and healing in an animal model of medication-related osteonecrosis of the jaw
  • Anyone taking bisphosphonates for osteoporosis or cancer treatment should consider GG supplementation as a preventive measure, especially before dental procedures

If you’ve been following my work, you may have recently read my article on geranylgeraniol (GG) and its remarkable ability to reverse statin-induced muscle pain where CoQ10 has failed. Today, I want to share another critical application of this same compound — one that could help prevent a devastating condition that has left many patients with dead jaw bone and no effective treatment options. The condition is called bisphosphonate-related osteonecrosis of the jaw, or BRONJ for short. And the solution, once again, is GG.

What Are Bisphosphonates and Who Takes Them?

Bisphosphonates are a class of drugs prescribed primarily for osteoporosis and for preventing bone complications in cancer patients. You may know them by brand names like Fosamax (alendronate), Boniva (ibandronate), Actonel (risedronate), and Zometa or Reclast (zoledronic acid).

These drugs work by inhibiting osteoclasts, the cells responsible for breaking down old bone. By suppressing bone resorption, bisphosphonates can increase bone density and reduce fracture risk. For cancer patients with bone metastases, they can help prevent skeletal complications.

Millions of people take these medications. In fact, bisphosphonates are among the most commonly prescribed drugs for postmenopausal women with osteoporosis. But like all drugs, they come with risks, and one of the most serious is osteonecrosis of the jaw.

The Horror of Jaw Bone Death

Osteonecrosis literally means “bone death.” When it occurs in the jaw, the bone tissue dies and becomes exposed through the gums, failing to heal. Patients develop painful, exposed bone in their mouth that can become infected, lead to tooth loss, and in severe cases require surgical removal of portions of the jaw.

The condition is diagnosed when a patient has exposed jaw bone that doesn’t heal within eight weeks, has a history of taking bisphosphonates or similar medications, and has no history of radiation therapy to the jaw area.

What makes BRONJ particularly insidious is that there is currently no reliable cure. Once the jaw bone dies, treatment options are limited to managing symptoms, controlling infection, and in some cases surgical debridement or removal of dead bone. Prevention is the only truly effective strategy.

The condition often develops after dental procedures — tooth extractions, implant placement, or other invasive dental work. This is why dentists now routinely ask patients about bisphosphonate use before performing procedures, and why some recommend “drug holidays” before dental surgery.

But what if there was a way to protect the jaw bone while still taking these medications? What if the same compound that reverses statin muscle damage could also prevent bisphosphonate jaw damage?

Same Mechanism, Same Solution

Here’s the key insight that connects these two seemingly different conditions: bisphosphonates and statins work through the same biochemical pathway.

Both drug classes inhibit enzymes in the mevalonate pathway. Statins block HMG-CoA reductase at the top of the pathway. Bisphosphonates — specifically the nitrogen-containing bisphosphonates like zoledronic acid — block farnesyl pyrophosphate synthase further down the pathway.

The end result is the same: depletion of geranylgeranyl pyrophosphate (GGPP), the activated form of GG. And when GGPP is depleted, the process of protein prenylation — essential for normal cell function — is impaired.

In muscle cells, this manifests as the muscle pain, weakness, and fatigue that statin patients experience. In the jaw bone, where there’s constant remodeling activity and exposure to oral bacteria, this manifests as impaired healing and eventual bone death.

A 2022 review published in Frontiers in Pharmacology1 explained the connection clearly: “Nitrogen-containing bisphosphonates suppress osteoclastic resorption by inhibiting farnesyl pyrophosphate synthase in the mevalonate pathway, leading to deficiency of the substrate for GTPase prenylation. The bone remodeling process is uncoupled, subsequently impairing bone healing and causing ONJ.”

The review went on to note that “targeted administration of geranylgeraniol (GGOH) represents a promising approach to mitigate BRONJ because GGOH is a substrate for GTPase prenylation.”

GG Reverses Bisphosphonate Damage to Jaw Cells

Multiple studies have demonstrated that GG can reverse the cellular damage caused by bisphosphonates in exactly the cell types that are critical for jaw bone health.

A 2011 study published in Oral Oncology2 was among the first to show that GG could reverse the negative biological effects of nitrogen-containing bisphosphonates on endothelial cells (which form blood vessels), fibroblasts (which form connective tissue), and osteogenic cells (which form bone). The researchers found that GG restored the viability and migration capacity of these cells after bisphosphonate treatment.

A 2021 study published in Frontiers in Cell and Developmental Biology3 investigated the specific mechanism by which bisphosphonates cause jaw bone problems. The researchers found that zoledronic acid (a potent bisphosphonate) both promoted the death of osteocytes (bone cells) and inhibited the ability of macrophages to clear dead cells — a process called efferocytosis that’s essential for proper healing.

Critically, the study found that “supplement with geranylgeraniol (GGOH), a substrate analog for geranylgeranylation of Rac1, could restore Rac1 homeostasis and rescue macrophage efferocytosis.” Rac1 (along with a closely related protein called Rac2) acts like an on-off switch that helps immune cells move, attach to damaged tissue, and clear away dead cells so healing can occur.

These proteins need to attach to cell membranes to work properly, and they need geranylgeraniol to do that. When bisphosphonates block this process, Rac signaling breaks down and immune cells cannot clean up damaged tissue. In other words, GG restored the normal healing process that bisphosphonates had disrupted.

A 2020 study4 examined the effects of zoledronic acid and GG on angiogenic (blood vessel-forming) gene expression in human osteoclasts. The researchers found that bisphosphonate treatment altered the expression of multiple genes involved in blood vessel formation — a key factor in bone healing. Addition of GG resulted in reduction of these altered gene expressions, suggesting it could help normalize the angiogenic response.

GG in Bone Cement Promotes Healing

Perhaps most exciting is a 2024 study published in the Journal of Oral Biology and Craniofacial Research5 that tested GG in an actual model of medication-related osteonecrosis of the jaw.

Researchers incorporated GG into bone cement pellets and tested their effects both in cell culture and in animals. They found that GG released from the bone cement increased osteoclast survival and metabolic activity and promoted resorption of calcified substrate — essentially restoring normal bone remodeling function.

In the animal model, released GG “limited the effects of the bisphosphonate and promoted healing.” The researchers noted that “GGOH from the infused cement carrier stabilizes bone structure and restores the ability of osteoclasts to remodel.”

The conclusion was encouraging: “These initial findings point to GGOH in a bone cement carrier as a useful therapeutic approach to prevent or mitigate the pathogenesis of MRONJ.”

While this specific delivery method (bone cement) is a clinical application that would need to be performed by a dental surgeon, the underlying principle is clear: GG can reverse bisphosphonate-induced damage to the cells responsible for jaw bone health and healing.

The Connection to Statin Myopathy

If you read my previous article on GG for statin-induced muscle problems, you’ll recognize the pattern. Both statins and bisphosphonates:

1. Inhibit the mevalonate pathway

2. Deplete geranylgeranyl pyrophosphate (GGPP)

3. Impair protein prenylation

4. Cause tissue damage (muscle or bone) through this mechanism

5. Can be counteracted by GG supplementation

This isn’t a coincidence — it’s biochemistry. These drugs work through the same fundamental mechanism, which is why they cause related problems and why the same solution addresses both.

The research on GG for statin myopathy is more advanced, with multiple in vivo studies and meta-analyses confirming that CoQ10 doesn’t work while GG does. The research on GG for BRONJ is still developing, with most studies being in vitro (cell culture) or in animal models. But the consistency of the findings across both conditions strongly supports the underlying mechanism.

Who Should Consider GG Supplementation?

Based on the available evidence, GG supplementation makes particular sense for:

• People taking bisphosphonates for osteoporosis — If you’re on Fosamax, Boniva, Actonel, or similar medications, GG supplementation may help protect your jaw bone, especially if you need dental procedures.

• Cancer patients receiving bisphosphonate therapy — High-dose intravenous bisphosphonates like Zometa carry a higher risk of BRONJ. Supplementation with GG could provide protective benefits.

• Anyone planning dental work while on bisphosphonates — Tooth extractions and implant placement are known triggers for BRONJ. GG supplementation before, during, and after dental procedures may help support normal healing.

• People taking statins who also take bisphosphonates — Many older adults take both drug classes. Both deplete GG through the same pathway. The combined depletion makes supplementation even more important.

Practical Recommendations

The practical recommendations for GG supplementation in the context of bisphosphonate use are similar to those for statin use:

• Dosing — 150 mg to 300 mg daily appears to be the range used in research.

• Form — Trans-geranylgeraniol from annatto seeds (often sold as “GG-Gold” or similar branded forms) has been the most studied.

• Timing around dental procedures — If you’re planning dental work, consider starting GG supplementation several weeks before the procedure and continuing during healing. Discuss this with your dentist and physician.

• Duration — Unlike some supplements that are taken only when symptomatic, GG supplementation may be most valuable as ongoing support while taking bisphosphonates, given that these drugs can persist in bone tissue for years.

• Safety — GG has demonstrated an excellent safety profile in research. It does not appear to interfere with bisphosphonates’ bone-building effects, similar to how it doesn’t interfere with statins’ cholesterol-lowering effects.

A Unified Approach to Mevalonate Pathway Support

The story of geranylgeraniol is really a story about understanding biochemistry rather than just treating symptoms. When we recognize that both statins and bisphosphonates deplete the same critical compound — and that this depletion causes problems in different tissues depending on which drug you’re taking — we can adopt a unified approach to protection.

• For statin users — GG addresses the root cause of muscle symptoms that CoQ10 couldn’t solve.

• For bisphosphonate users — GG supports the jaw bone health that these drugs compromise.

• For people taking both — GG replenishes what both drug classes deplete.

This is the kind of integrative thinking that conventional medicine often misses. Rather than treating statin myopathy and bisphosphonate jaw necrosis as completely separate conditions requiring separate solutions, we can recognize their common cause and address them together.

If you’re taking either statins or bisphosphonates — or especially if you’re taking both — GG deserves serious consideration as part of your supplement regimen. The research is clear, the mechanism is understood, and the safety profile is excellent. Discuss it with a healthcare provider familiar with integrative approaches, and take control of protecting your muscles and bones from pharmaceutical side effects.

FAQ

Q: What is bisphosphonate-related osteonecrosis of the jaw (BRONJ)?

A: BRONJ is a serious condition in which sections of jaw bone lose blood supply, die, and fail to heal. It occurs in some people who take bisphosphonate drugs for osteoporosis or cancer, especially after dental procedures such as tooth extractions. Once established, there is no consistently effective treatment, which makes prevention critical.

Q: How do bisphosphonates cause jaw bone damage?

A: Bisphosphonates block enzymes in the mevalonate pathway, a metabolic pathway your body uses to produce essential compounds. This blockade depletes geranylgeranyl pyrophosphate (GGPP), which cells need for protein prenylation, a process required for normal bone remodeling, immune cleanup, blood vessel growth, and tissue repair.

Q: Why does geranylgeraniol (GG) matter in BRONJ?

A: GG replenishes GGPP, the compound depleted by bisphosphonates. Research shows GG restores normal function in osteoclasts, osteoblasts, fibroblasts, endothelial cells, and immune cells that support jaw bone healing. By correcting the underlying biochemical disruption, GG targets the root cause rather than symptoms.

Q: What does research show about GG and jaw bone healing?

A: Cell and animal studies report that GG reverses bisphosphonate-induced cell death, restores immune cell cleanup of damaged tissue, and normalizes blood vessel-related gene activity. A 2024 animal study showed GG delivered through bone cement promoted bone remodeling and healing in a model of medication-related osteonecrosis of the jaw.

Q: Who may benefit most from GG supplementation?

A: Evidence suggests GG may help people who take bisphosphonates for osteoporosis or cancer, especially if you plan dental procedures or also take statins, which deplete GG through the same pathway. Human clinical trials remain limited, so you should discuss supplementation with your dentist and physician before use.

The Great Osteoporosis Scam


Reproduced from original article:
https://articles.mercola.com/sites/articles/archive/2024/05/03/osteoporosis-scam.aspx


Analysis by A Midwestern Doctor     
May 03, 2024

osteoporosis scam

STORY AT-A-GLANCE

  • One of aging’s most profound consequences is the gradual weakening of bones, which can lead to life-altering physical limitations and fractures. Currently, we wisely aim to prevent bone loss early on but unwisely rely on routine bone density scans, often leading to the indiscriminate sale of “bone-strengthening” drugs to a large patient base
  • This approach is deeply flawed. Scan data frequently fails to reflect true bone strength, while increasing density often results in brittle bones prone to fracture. Moreover, the commonly prescribed bone density drugs carry significant risks
  • In the face of a lucrative drug market (such as osteoporosis affecting 20% of women over 50), the medical industry dismisses alternative approaches that do not generate substantial profits
  • This profit-driven mindset leaves us with little understanding of osteoporosis’s true causes or the most effective treatments. This article will delve into the forgotten knowledge of bone health

The years I have spent studying the medical industry have made me appreciate how often economic principles can allow one to understand its complex and contradictory behavior.

For example, I believe many of the inconsistencies in medical ethics (e.g., “mothers have an absolute right to abort their children” and “mothers cannot refuse to vaccinate their children because it endangers their child’s life”) can be explained by simply acknowledging that whatever makes money is deemed “ethical.”

Sales Funnels

The sales funnel concept is crucial to understanding the modern medical industry. This method involves initially targeting a broad audience and then gradually narrowing down to more expensive products or services for the captured customers. There are typically two overlapping sales funnels in medicine:

The first funnel involves prescribing innocuous drugs to many people and then selling increasingly expensive pharmaceuticals to treat complications. For example, this often occurs with medications given to girls, leading to harmful consequences.

common response to hormonal changes

Note: Sources for the above graph can be found in this article about the dangers of SSRI antidepressants.1

The second funnel involves framing preventative medicine as screening individuals for potential health risks and then using these results to justify selling medical services like drug prescriptions. As these screenings become normalized, the industry expands the range of services offered, often leading to overdiagnosis and overtreatment. For instance, guidelines for “safe” blood pressure and cholesterol levels have been continuously lowered,2 hence putting more people on medications.

Note: The folly of this approach is highlighted by a trial that found removing on average 2.8 non-essential drugs from the elderly at one facility caused their 1-year death rate to go from 45% to 21%.3

DEXA Scams

One common way mass screenings are conducted is by giving many patients X-rays and then funneling those with abnormal imaging into being treated. For example, women over 50 get mammograms every two years to detect breast cancer early. However, studies show these screenings often lack overall benefit because fast-growing cancers are usually not caught early, while false positives are common and frequently lead to harmful treatments.

Note: Many medical specialists depend upon repeatedly performing the same billable service (e.g., vaccinating a child, performing a female pelvic exam, or reading a mammogram).

Another common universal screening practice for women is dual-energy X-ray absorptiometry (DEXA) scans, which measure bone density as an indicator of bone strength. The results are compared to the average bone density of a 30-year-old, producing a T-score. Medical students learn that a T-score of 0 to -1 is normal, -1 to -2.5 indicates osteopenia, and -2.5 or worse signifies osteoporosis, prompting urgent treatment.

However, considering natural age-related bone density loss, most individuals will have lower bone density than a 30-year-old. Thus, the current approach to managing osteoporosis acknowledges inevitable bone loss with age and focuses on prevention, as regaining bone density later in life is challenging.

How reliable are DEXA scans? Results vary significantly based on machine, operator, and measured bones, with studies showing a 5% – 6% difference4 in bone density. This variation can alter T-scores by 0.2 – 0.4, leading to misdiagnoses of osteoporosis.

Is repeated scanning necessary? A study of 4124 older women5 found no additional useful information gained from repeating DEXA scans over 8 years. Yet, guidelines recommend scans every 1-2 years, with Medicare covering one every 2 years, despite costs ranging from $150 to $300 per scan.

Do DEXA scans accurately predict fracture risk? While generally predictive, studies show discrepancies between scan results6 and observed bone strength under a microscope. Additionally, scans often underestimate strength loss in deliberately weakened bones.

Note: I recently learned from Dr. Mercola that a faster and more accurate method of diagnosing bone strength (which does not expose patients to ionizing radiation) is beginning to be used in Europe.7 REMS technology works by sending ultrasound waves8 into the bone and then analyzing the spectrum created to assess the health of the bones.

As this presentation shows, it accurately predicts bone density, and additionally, predicts bone strength. In short, this may be a dramatically superior approach to Dexa scans, but it faces stiff resistance in the United States because of how heavily invested many already are in performing Dexa scans. For those interested, more information can be found at EchoLight’s website.9

ernest curtis comment

Note: This comment was affirmed in an NPR article.10

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Bisphosphonates

Once osteoporosis is diagnosed, the initial treatment often involves starting a bisphosphonate, which may continue for 3-5 years depending on the administration method. A variety of factors influence the development of bone.

Two of the most important ones are the cells that build bone up (osteoblasts) and the cells that break bone down (osteoclasts). Bisphosphonates, (e.g., Fosamax or Actonel), concentrate in bones and inhibit osteoclasts,11 leading to increased bone density by shifting the balance towards bone building. However, this approach faces two major issues:

•Bisphosphonates are associated with numerous side effects,12 such as stomach irritation, severe muscle and bone pain, flu-like symptoms, osteonecrosis of the jaw,13 unusual hip fractures, atrial fibrillation, hypocalcemia, fatigue, and kidney problems. Remarkably, the American Dental Association even cautioned its members14 to avoid working on patients who are taking bisphosphonates.

•Bisphosphonates disrupt the body’s natural bone-building process, resulting in the preservation of “old bone” rather than promoting healthy bone formation.

Note: In addition to the bisphosphonates, there are other problematic osteoporosis drugs which also target the osteoclasts.

Bone Remodeling

One of the key adaptive processes in the body is its response to stresses and loads placed upon it. An often-overlooked marvel of the body is its continual reshaping of bones to bear loads optimally. While we seldom think about this process, its significance becomes apparent in certain scenarios. Consider space travel: astronauts, deprived of gravity’s weight signals, experience rapid bone loss,15 posing serious fracture risks upon returning to Earth.

In this bone-building ballet, osteoclasts play a crucial yet underappreciated role. They sculpt bones to withstand gravity’s demands, but when blocked by drugs like bisphosphonates, bones become denser yet more brittle and less flexible.

This underscores a common issue in medicine: focusing on treating numbers (e.g., lowering cholesterol) assuming it equates to health improvement. Studies often assess benefits through value changes (e.g., vaccine-induced antibodies), overlooking actual patient outcomes (e.g., in Pfizer’s COVID vaccine studies,16 antibody production didn’t correlate with decreased deaths).

In short, I would posit that while bisphosphonates may be effective at improving a DEXA score, they aren’t necessarily good at improving bone health.

What Causes Osteoporosis?

Bone metabolism is intricately linked to various key body processes, making it challenging to pinpoint the primary determinants of bone health. However, several factors stand out:

Mobility — Sedentary lifestyles contribute to osteoporosis, highlighting the importance of weight-bearing activities in bone health.17 Walking is particularly beneficial and if done regularly throughout life dramatically improves bone health.
Hormones — In a previous article, I discussed the severe dangers of drugs like Lupron which work by disabling the body’s production of sex hormones. One of the most common side effects observed from them is a significant weakening of the bones. In turn, hormonal loss accompanying aging also weakens the bones.
Inflammation — Chronic inflammatory conditions increase the risk of osteoporosis by activating bone-dismantling processes.18
Amino acids — Since one of the most essential components of bone health is the elasticity collagen imparts to them (as this allows bone to bend and yield to outside forces rather than shattering) collagen health is critically important for bone health.

In modern society, we are often deficient in those amino acids because of widespread stomach acid deficiency19 (which impairs our ability to metabolize protein into amino acids) and us predominantly consuming softer cuts of meat which lack the collagen building amino acids found in tougher parts of meat (e.g., gristle).

Note: Colleagues such as Dr. Mercola have found consuming 30g – 40g of collagen each day sourced from beef knee joints is an optimal amino acid repletion protocol and in a short period of time significantly improves bone health (along with often improving a variety of related factors such as one’s height and one’s metabolic health).

Minerals — Dietary intake of minerals such as boron and manganese20 is crucial for bone strength, and deficiencies can impair bone health. Factors like stomach acid deficiency21 and soil depletion contribute to mineral deficiencies.

Note: The widespread deficiency of manganese in the population is in part due to it being chelated from the soil by glyphosate (Roundup).22

Manganese serves an essential role in building collagen, so when it is deficient, it frequently creates systemic ligamentous laxity,23 and in turn hypermobile patients such as those with EDS (who tend to be highly sensitive and susceptible to pharmaceutical injuries) notice a significant improvement in their ligamentous strength after a few months of appropriately dose manganese.24

Water fluoridation — While fluoride increases bone density, it may compromise bone health and function. Some studies link fluoride to osteomalacia and increased fracture risk.25
Pharmaceutical drugs — Medications like glucocorticoid steroids26 (e.g., prednisone) and opioids can weaken bones27 and increase fracture risk.

Note: Glucocorticoid induced bone loss is so severe it’s actually one of the few approved indications for bisphosphonate treatment.28

Environmental toxins — Exposure to toxins like organophosphates, bisphenol A, nicotine, and heavy metals inhibits bone formation and contributes to osteoporosis.29
Parathyroid adenomas — These tumors cause excessive secretion of parathyroid hormone, leading to calcium depletion from bones, bone loss, and a range of symptoms. Surprisingly, despite being a well-known condition, parathyroid adenomas are frequently missed. Identifying persistently elevated blood calcium levels can serve as a key indicator, prompting further investigation into a parathyroid adenomas.

Note: Chinese Medicine has connected the age-related loss of the kidney’s vitality to bone loss for thousands of years. Many attribute this to the kidneys crucial role in regulating vitamin D and the blood levels of the minerals bone is composed of (e.g., calcium).

I suspect their regulation of the physiologic zeta potential (the decline of which is a key cause of aging) is also key. That is because zeta potential30 governs the tendency for blood to flow freely or clump together, and the hard exterior bone blood vessels must pass through makes them more susceptible to their blood supply becoming interrupted (e.g., from the bone moving out of place).

Conclusion

It’s fascinating to realize that bone is far more than just a structural component; it’s a living tissue with its own dynamic behavior. When I’ve had the opportunity to handle bone directly, such as during orthopedic surgeries, it’s evident how different it is from the lifeless bones we typically encounter. Unfortunately, this experience is rare, leading many to see bone as inert and unchanging.

The points I’ve discussed in this article are founded on the importance of recognizing bone’s vitality and understanding how our interactions with it shape our health and longevity. Ancient medical traditions, like Chinese medicine, appreciated this aspect of bone health. They saw it as integral to overall well-being, acknowledging its interconnectedness with the body’s systems.

By embracing this perspective, we can gain new insights into bone health and its significance for holistic healthcare. It’s my hope that this article sheds light on the dynamic nature of bones and encourages a deeper understanding of their role in our health journey.

Author’s note: This is an abridged version of a longer article on the subject which discusses the above points in more detail and many others such as our other preferred approaches for improving bone health. That article and its additional references can be read here.

A Note From Dr. Mercola About the Author

A Midwestern Doctor (AMD) is a board-certified physician in the Midwest and a longtime reader of Mercola.com. I appreciate his exceptional insight on a wide range of topics and I’m grateful to share them. I also respect his desire to remain anonymous as he is still on the front lines treating patients. To find more of AMD’s work, be sure to check out The Forgotten Side of Medicine on Substack.