What are the downsides of apple cider vinegar?

The Hidden Downsides of Apple Cider Vinegar

Apple cider vinegar (ACV) has earned a glowing reputation in wellness circles—touted for aiding digestion, supporting weight loss, and even balancing blood sugar. But despite its popularity, it’s not without risks, especially when used recklessly or in excess.

One of the most common issues arises from consuming ACV undiluted or in large quantities. Its high acidity can irritate the stomach lining, leading to nausea, heartburn, or even diarrhea. Some people drink it straight, hoping for faster results, but this often backfires—causing more digestive discomfort than benefit.

Another serious concern is its interaction with certain medications. For instance, ACV may amplify the effects of insulin, potentially causing blood sugar to drop too low. It can also interfere with diuretics by further reducing potassium levels, increasing the risk of muscle cramps or irregular heart rhythms. Anyone on these medications should consult a doctor before making ACV a daily habit.

Long-term overuse may also erode tooth enamel due to its acidity, especially if consumed as a daily tonic without proper dilution or oral care. Even topical use on the skin—sometimes done for acne—can cause irritation if not properly diluted.

While small, diluted amounts of apple cider vinegar may be safe for most people, it’s not a miracle cure. Like any potent substance, moderation and caution are key. The trend of chugging ACV shots or taking multiple supplements a day ignores the fact that more isn’t always better. When it comes to health, even natural remedies deserve a second thought.