Apple cider vinegar has been used for generations to lower blood pressure, keep blood glucose under control and even treat sinus infections and is a safe therapy for most individuals. However, treatment with apple cider vinegar is not for everyone. If you have a sensitive stomach or are taking certain medications, such as diuretics or insulin, taking apple cider vinegar can potentially aggravate your condition or interact with your medications.
Acetic Acid
Kristi Monson, PharmD and Arthur Schoenstadt, MD of eMedTV, caution those using apple cider vinegar, or any type of vinegar, that the high acetic acid content can irritate the sensitive lining of the stomach and esophagus, potentially causing heartburn or nausea. Those with peptic ulcers and chronic heartburn are especially at risk for adverse effects.
Unpasteurized Vinegar
Unpasteurized apple cider vinegar contains bacteria, which is said to be beneficial to the digestive tract. However, individuals with compromised immune systems may become ill from ingesting unpasteurized vinegar. Pasteurization is a process in which a liquid is heated to a temperature high enough to kill these potentially illness-causing bacteria and other microorganisms.
Drug Interactions
Apple cider vinegar is known to interact with the heart medication digoxin. Cardiac patients taking diuretics, or water pills, should also avoid apple cider vinegar. Patients on insulin should avoid apple cider vinegar. Both vinegar and insulin lower the stores of potassium in the body. Combining the two can lead to a serious medical condition known as hypokalemia. Apple cider vinegar also lowers blood glucose levels. To avoid a dangerous drop in blood sugar levels, diabetics on medications like Amaryl, Avandia or Glucotrol should avoid apple cider vinegar.
Lack of Regulation
Apple cider vinegar is utilized as a food additive or a nutritional supplement. It is not a drug prescribed to treat or cure illness. As such, the U.S. Food and Drug Administration does not oversee producers of apple cider vinegar, nor do they investigate claims that apple cider vinegar can be used to treat medical conditions. This lack of regulation means that acetic levels may vary from brand to brand, meaning the potency may vary and could cause adverse reactions. Always begin an apple cider vinegar regimen with smaller doses to test your tolerance. Build up to stronger, less-dilute doses, and always pay close attention to the expiration dates.
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