Throat Burns and Drug Interactions
The acidity of apple cider vinegar makes it potentially corrosive when it comes in contact with the lining of the throat. Drinking apple cider vinegar may occasionally cause a burning sensation in the esophagus but this is usually mild.
In a 2019 case study [9], a 15-year-old boy suffered esophageal damage after daily consumption of vinegar.
If you are on medication for diabetes or heart problems, you should speak to your doctor first before committing to an apple cider vinegar diet. This is because apple cider vinegar may have potentially toxic interactions [10] with diuretics and other drugs typically recommended for these health conditions.