While herbal teas are generally considered safe for most people when consumed in moderation, there are a few precautions to be aware of. Some herbs may interact with certain medications or have adverse effects for individuals with specific health conditions. Pregnant or breastfeeding women should exercise caution and consult with a healthcare professional before consuming certain herbal teas. Additionally, excessive consumption of some herbal teas may lead to side effects like digestive discomfort or headaches.