wie viel bananen kann man am tag essen — when to see a doctor?

Bananas are nutritious, but the right amount depends on individual health. For most healthy adults, 1–2 bananas per day are safe and provide potassium, vitamin B6, and fiber. Excessive intake (e.g., more than 5–6 daily) can raise potassium to dangerous levels, especially in people with kidney disease or those taking ACE inhibitors. The sugar content (~14 g per banana) also matters for diabetics. You should see a doctor if you experience muscle weakness, irregular heartbeat, nausea, or diarrhea after high banana consumption. Also seek medical advice if you have chronic kidney disease or if blood tests show high potassium. The evidence level is 'practice' based on general dietary guidelines and clinical experience; no specific studies from the provided context support this directly.