Safety
Apple Cider Vinegar Safety: Teeth, Throat, Potassium and Medicines
Apple cider vinegar is acidic. WebMD says drinking pure vinegar regularly can damage teeth or throat, case reports link heavy use to tooth erosion, throat injury and low potassium, and RxList lists interactions with insulin, diabetes medicines, digoxin and diuretics. Glyco Reset's vinegar amount and acidity are not published, so ask your doctor first.
Written by the Glycoresetformula editorial teamUpdated · 9 min read
The short answer
Is apple cider vinegar safe to take every day?
For many people a little vinegar in food is ordinary. The problems in the sources come from strong, regular or heavy use, and from tablets.
WebMD puts the main risk in one line: "Drinking pure apple cider vinegar on a regular basis can damage your teeth or throat" (WebMD: Apple cider vinegar). The other risks are rarer but serious, and most come from case reports.
| Risk | What was reported | Source |
|---|---|---|
| Teeth | Enamel erosion with a vinegar supplement at high doses over a long time | (Chaiyasith 2017 vinegar supplement dental erosion) (WebMD: Apple cider vinegar) |
| Throat | Esophageal injury from ACV tablets; a tablet lodged in a throat | (MSKCC: Apple cider vinegar monograph) (RxList: ACV interactions) |
| Product quality | Tablets 3-10 times as acidic as household vinegar | (Univ. of Arkansas: ACV tablet testing) |
| Potassium and bones | Low potassium with osteoporosis after heavy, long-term intake | (MSKCC: Apple cider vinegar monograph) (RxList: ACV interactions) |
| Medicines | Moderate interactions with insulin, diabetes medicines, digoxin and diuretics | (RxList: ACV interactions) |
These findings are about vinegar in general. None was a study of Glyco Reset.
Teeth
Can apple cider vinegar damage your teeth?
Yes, with regular strong exposure. WebMD lists tooth damage as a risk of drinking pure apple cider vinegar on a regular basis (WebMD: Apple cider vinegar). Enamel is the hard outer layer of the tooth, and erosion means acid has worn it away.
A 2017 case report from Thailand described dental erosion in a patient who took a vinegar-based dietary supplement at high doses for a long period (Chaiyasith 2017 vinegar supplement dental erosion). The researchers then tested the supplement in the lab. They measured its pH and showed its erosive effect on enamel.
One case does not show how common this is. It does show that a supplement, not just kitchen vinegar, can cause the problem when it is acidic and used often.
The problem in the report came from a supplement, at high doses, over a long time. Dose and duration both mattered, which is why an unpublished dose is a real gap.
Throat
Can apple cider vinegar hurt your throat or esophagus?
It can, and tablets carry their own risk. The esophagus is the tube from the throat to the stomach, and its lining is sensitive to acid.
Memorial Sloan Kettering reports esophageal injury in a 48-year-old woman who took ACV tablets (MSKCC: Apple cider vinegar monograph). RxList describes a case where an ACV tablet lodged in a woman's throat (RxList: ACV interactions).
WebMD names the throat alongside the teeth as a risk of drinking pure vinegar regularly (WebMD: Apple cider vinegar). The tablet testing below shows why strength matters: the acid in some products was far higher than their labels suggested.
Testing
What did lab tests of apple cider vinegar tablets find?
They found that labels and contents did not always match. After a case of an esophageal burn from ACV tablets, University of Arkansas researchers tested 8 products (Univ. of Arkansas: ACV tablet testing).
- Several held acid at 3 to 10 times the strength of household vinegar.
- One labeled 35% acetic acid actually held 3.2%.
- None contained lactic acid, which raised doubts that they were true apple cider vinegar.
That study is old and covered tablets, not drops. The lesson still carries over: you cannot judge a vinegar product's strength from its name. Glyco Reset does not print its acidity either.
Potassium
Can apple cider vinegar lower potassium?
In rare heavy-use cases, yes. Both reports involved large amounts taken for years, far beyond kitchen use.
Memorial Sloan Kettering cites a 28-year-old woman who developed low potassium, called hypokalemia, along with osteoporosis after heavy ACV intake (MSKCC: Apple cider vinegar monograph). RxList describes a case of 250 mL of vinegar a day for 6 years linked to low potassium and osteoporosis (RxList: ACV interactions).
For scale, 250 mL is about four times the size of a whole 60 mL Glyco Reset bottle, taken every day. RxList also ties low potassium to three medicines, listed below (RxList: ACV interactions).
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Which medicines interact with apple cider vinegar?
RxList lists moderate interactions with four groups of medicines (RxList: ACV interactions). Two involve low potassium and two involve low blood sugar.
| Medicine | Listed concern |
|---|---|
| Digoxin (heart medicine) | Low potassium |
| Diuretics (water pills) | Low potassium |
| Insulin | Low potassium; low blood sugar |
| Diabetes medicines | Low blood sugar |
Below 70 mg/dL is considered low. Signs include shaking, sweating, a fast heartbeat, hunger, headache, blurry vision and confusion. If a sugary snack does not help, call 911 (MedlinePlus: Low blood sugar).
Full detail on each drug group is on the medicines page.
Glyco Reset
What does vinegar safety mean for Glyco Reset drops?
The same questions apply, but the answers are unknown. Glyco Reset lists apple cider vinegar first among six ingredients and publishes no amount, no acidity and no serving size.
A few facts help. It is a liquid, not a tablet, so the lodged-tablet case does not match it directly. The whole bottle is 60 mL, far below the heavy intake in the potassium cases. But the strength of each serving cannot be checked, and no caution panel appears in any product image.
The formula also lists pure cane sugar and citric acid, with no amounts. See every known detail on the label page and the side effects page.
What to do
What precautions do the sources support?
The sources point to a short list. Each step below ties back to a cited risk.
Ask your doctor first if you take medicine
Especially insulin, diabetes medicines, digoxin or a diuretic, given the RxList interactions (RxList: ACV interactions). Never change a dose on your own.
Avoid heavy, long-term use
The potassium and erosion cases involved high doses over long periods (MSKCC: Apple cider vinegar monograph) (Chaiyasith 2017 vinegar supplement dental erosion). Follow the label on your bottle and do not exceed it.
Tell your dentist
Regular pure vinegar can damage teeth (WebMD: Apple cider vinegar). Mention any acidic supplement at checkups.
Check the bottle you receive
Several formulas share the Glyco Reset name. Read the ingredients and any warning; the same-name guide shows how.
For the evidence side, read what the vinegar trials found.
FAQ
Apple cider vinegar safety FAQ
Can apple cider vinegar ruin your teeth?
It can erode enamel with regular strong use. WebMD says drinking pure apple cider vinegar regularly can damage teeth (WebMD: Apple cider vinegar), and a case report linked a vinegar supplement taken at high doses for a long time to dental erosion (Chaiyasith 2017 vinegar supplement dental erosion).
Are apple cider vinegar pills safe?
Tablets have their own risks. Memorial Sloan Kettering reports esophageal injury from ACV tablets (MSKCC: Apple cider vinegar monograph), RxList describes a tablet lodged in a throat (RxList: ACV interactions), and lab testing found tablets 3-10 times as acidic as household vinegar (Univ. of Arkansas: ACV tablet testing).
How much apple cider vinegar causes low potassium?
No safe or unsafe cutoff is published. The reported cases involved heavy use: one person took 250 mL a day for 6 years and developed low potassium and osteoporosis (RxList: ACV interactions). Ask your doctor if you take digoxin or a diuretic.
Can I take apple cider vinegar with metformin or insulin?
Ask your doctor first. RxList lists a moderate interaction between vinegar and diabetes medicines, with a risk of low blood sugar, and between vinegar and insulin, with a risk of low potassium (RxList: ACV interactions). Do not change your medicine on your own.
Does apple cider vinegar interact with water pills?
RxList lists a moderate interaction between vinegar and diuretics, also called water pills, because both may lower potassium (RxList: ACV interactions). It lists the same concern with digoxin. Ask your doctor or pharmacist before you add any vinegar product.
What are the signs of low blood sugar?
Blood sugar below 70 mg/dL is considered low. Signs include shaking, sweating, a fast heartbeat, hunger, headache, blurry vision and confusion. If a sugary snack does not help, call 911 (MedlinePlus: Low blood sugar).
Is Glyco Reset as acidic as apple cider vinegar?
That is not published. Glyco Reset lists apple cider vinegar with water, cane sugar, pectin, citric acid and sodium citrate, but prints no amounts and no acidity. Read the warning on the bottle you receive and ask your doctor.
Who wrote this
Written and reviewed by
A small team that reads every Glyco Reset image, listing and public source line by line, checks each claim against NIH, NCCIH, NIDDK, CDC, ADA, FDA, FTC and peer-reviewed research, and rewrites it in plain English. We do not write for the manufacturer, and we update a page whenever the label, the prices or the evidence changes.
Last updated . Read about our editorial standards and how we check reviews. This website is run by a licensed U.S. retail desk, not by the manufacturer. We are paid a commission when you buy through our order links.
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Medicines and Glyco Reset
Which medicines have a listed interaction with apple cider vinegar, and what to ask your pharmacist before trying Glyco Reset.
Read moreLicensed U.S. retail desk for Glyco Reset
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