Anti-orbital ionic calcium therapy, usually shortened to AIC therapy or AICT, means taking a liquid calcium product called anti-orbital ionic calcium (AIC) by mouth. Its makers describe it as a highly purified calcium carbonate that the body absorbs as calcium ions, and they market it for bone density and a long list of other conditions. The honest picture in September 2026: the published research is one small rat study, one lab study in cancer cells, a retracted mouse study, and a human bone density study that has only appeared as a preprint. That is not enough to call AIC a proven treatment for anything. This page walks through what AIC is, what has actually been studied, how it compares with ordinary calcium, and who should be careful.
What is anti-orbital ionic calcium?
AIC is a calcium supplement developed by the Calcium & Bone Health Institute (CBHI), which lists an office in Coquitlam, British Columbia. The company’s technology page lists its purity at 99.9% and says AIC has “a significantly higher absorption rate” than its earlier product, Sigma Anti-bonding Molecule Calcium Carbonate (SAC), sometimes sold as BT-CAL.
The name comes from the company’s explanation of how it works. In their description, electrical potential in the body strips electrons from the calcium atom’s outer (4s) orbital, turning it into a positively charged calcium ion that cells can use. Calcium ions really do drive muscle contraction, nerve signaling, blood clotting and many cell processes. Whether this product delivers calcium ions more usefully than a standard supplement is the part nobody has independently shown.
The U.S. distributor site, aictherapy.com, describes AIC as taken orally with water and states plainly: “AIC is a dietary supplement, not a drug.” It carries the standard notice that its statements have not been evaluated by the FDA.
What AIC therapy is used for
Clinics that offer AICT promote it for:
- Osteopenia and osteoporosis, including improving T-scores and Z-scores on bone scans
- Joint pain and stiffness
- Inflammation in chronic disease
- Energy and mitochondrial function
- Bone spurs and kidney stones, described as “dissolving unwanted calcification”
- As a complementary cancer therapy (Hope4Cancer, for example, lists it among its alternative therapies, with a disclaimer that these therapies are not FDA-approved for cancer)
An earlier version of this page repeated several of those claims as if they were established. They are not, and we have corrected it. The idea that extra calcium dissolves kidney stones deserves a special warning, because NIH’s Office of Dietary Supplements lists a higher kidney stone risk among the concerns with high calcium intake.
What the research actually shows
We searched PubMed in September 2026 for anti-orbital ionic calcium, antiorbital calcium and SAC. Here is everything relevant that turned up, plus the human data the company cites.
The rat bone study (2011)
Researchers at Chungbuk National University in Korea removed the ovaries of rats to mimic postmenopausal bone loss, then gave one group drinking water containing 0.0012% SAC for 12 weeks. Femoral bone density, bone strength, calcium and phosphorus were “fully recovered by SAC treatment” compared with untreated rats. The study used 15 rats in total, five per group. One author was affiliated with the company that supplied the SAC. It is a promising animal signal, and it tested SAC, not the newer AIC.
The retracted mouse toxicity study (2013)
Several of the same researchers later gave mice SAC in drinking water at higher concentrations for four weeks and reported kidney and heart damage, with 70% of mice in the highest-dose group dying within three weeks. The journal retracted the paper in 2016. A retraction means those findings cannot be relied on, so this study shows neither harm nor safety. We mention it because you may run into it.
The cancer cell study (2026)
A May 2026 paper in Molecular Biology Reports exposed MCF-7 breast cancer cells in a dish to two AIC formulations and found lower cell viability over 72 hours. Two of the four authors are affiliated with AIC research institutes. Many substances kill cancer cells in a dish. This does not tell us what AIC does in a person.
The human bone density data
A study of 82 adults posted on Research Square in July 2025 reported average T-scores improving from -2.0 to -0.85 after SAC treatment. It is a preprint that had not been peer reviewed, and the summary we reviewed did not describe a placebo or comparison group. The AIC practitioner site also mentions a 135-person cohort with a 9.4% mean increase in bone density. We could not find that data published in PubMed.
Put together: an early animal result, no controlled human trial in a peer-reviewed journal, and most of the work connected to the companies that sell the product. Maybe future trials will back it up. Right now, anyone telling you AIC “reverses osteoporosis” is ahead of the evidence.
How AIC compares with regular calcium
Ordinary calcium supplements are far better studied, and even they are not a sure thing for bones. The NIH Office of Dietary Supplements (ODS) notes that “not all clinical trials have found that these supplements improve bone health or reduce the risk of fractures” in older adults.
The ODS recommended daily intakes for adults are:
- Ages 19 to 50: 1,000 mg
- Men 51 to 70: 1,000 mg
- Women 51 and older: 1,200 mg
- Everyone 71 and older: 1,200 mg
The upper limit, from food and supplements combined, is 2,500 mg a day for ages 19 to 50 and 2,000 mg a day after 50. Calcium carbonate absorbs best with meals because it needs stomach acid. Calcium citrate absorbs with or without food. A “better absorbed” calcium is not automatically a better one if it pushes your total intake past what you need.
Our default is food first, then a supplement only to fill a measured gap.
Safety, interactions and who should avoid AIC
AIC is sold as a supplement, and its long-term safety in people has not been published. Because it is a calcium product, the ODS cautions for calcium apply. Too much calcium can cause high blood calcium (hypercalcemia), high urine calcium and kidney stones. ODS also describes mixed research on whether calcium supplements affect heart and blood vessel risk.
Calcium interacts with several medicines. ODS lists:
- Levothyroxine (Synthroid and others): calcium carbonate can interfere with its absorption
- Quinolone antibiotics such as ciprofloxacin: calcium can reduce how much of the antibiotic you absorb
- Dolutegravir, an HIV medication: calcium can lower its blood levels substantially
- Lithium: long-term use can cause hypercalcemia, and adding calcium may raise that risk
If you take any of these, ask your pharmacist how far apart to take them from a calcium supplement, or whether you should take calcium at all.
Talk with your doctor before trying AIC, or skip it, if you:
- Have had kidney stones or have kidney disease
- Have high blood calcium or a parathyroid condition
- Take any of the medicines above
- Already get close to the upper limit from food and other supplements
- Are pregnant or breastfeeding, since no safety data exist for this product
- Have cancer and are considering AIC in place of standard treatment
A better plan for bone health
If bone density is the reason you are looking at AIC, start with a DEXA scan so you have real numbers to track. Then cover the basics your doctor will likely raise: enough calcium and vitamin D, weight-bearing and strength exercise, not smoking, and a review of medications and hormones that affect bone. ODS explains that falling estrogen at menopause reduces calcium absorption and increases calcium loss from bone, which is why bone health often comes up in menopause care and conversations with a hormone doctor in Bend. Diet planning through our bio-medical nutrition service can get calcium intake right without guessing.
If you still want to try AIC after all that, do it with a clinician who knows your full supplement list and repeats your bone scan, so you find out whether it did anything for you.
Frequently asked questions
What is AIC therapy?
AIC therapy is the use of anti-orbital ionic calcium, an oral liquid calcium supplement made by the Calcium & Bone Health Institute. It is marketed mainly for bone density. It is a supplement, not an FDA-approved drug.
Does ionic calcium therapy reverse osteoporosis?
That has not been shown in a peer-reviewed human trial. A 2011 study in 15 rats found bone density recovered with the related product SAC, and an 82-person human study reported better T-scores but was a preprint without peer review when we checked.
Is AIC safe?
We do not know yet. No long-term human safety data for AIC have been published in a peer-reviewed journal. The standard calcium risks apply, including kidney stones when intake runs high and interactions with thyroid medication and some antibiotics.
What does “anti-orbital” mean?
It is the manufacturer’s term. It refers to their explanation that calcium’s outer electron orbital is removed so it acts as a calcium ion. Outside the company and research groups tied to it, the term does not show up in the medical literature we searched.
Are AIC supplements different from calcium citrate or carbonate?
AIC is made from calcium carbonate that the company says is processed to absorb better. No independent study has compared it head to head with standard calcium citrate or carbonate in people.
Can AIC dissolve kidney stones or bone spurs?
There is no evidence for that, and high calcium intake is linked to a higher kidney stone risk. If you have stones, talk with your doctor before adding any calcium supplement.
Questions about AIC or bone health?
Call Proactive Choice at (858) 333-5196 to book a free 15-minute phone consultation with Dr. Drew Collins, ND, or reach us online. Bring your latest bone scan and supplement list if you have them.
Related reading
This article is general information, not personal medical advice. Proactive Choice is the practice of Dr. Drew Collins, ND, a licensed naturopathic physician in Oregon.
Want to talk this through for your own health? Book a visit with Dr. Drew Collins, ND at 601 NW Harmon Blvd in Bend, or call (858) 333-5196.
