Apple cider vinegar is not a medication, so the goal is a low-risk, sustainable routine rather than aggressive intake. A safe strategy is to start small, always dilute, and avoid “sipping all day.” People with reflux, gastritis, ulcers, dental sensitivity, or chronic medication use should be more cautious. If you use diabetes medication, monitoring blood glucose is important because vinegar may affect post-meal responses. If irritation or discomfort appears, do not increase the dose—reduce it or stop. Consistency and tolerance are the decision-makers.