Doctors say bananas aren’t the problem—it’s how we eat them. On an empty stomach, their quick sugars can spike blood sugar and lead to a sharp crash a few hours later, causing fatigue, irritability, and cravings. The fix isn’t cutting bananas out, but pairing them with protein, fiber, or healthy fats like yogurt, nut butter, eggs, or oats. That small change turns a sugar rush into steady energy, helping your mood and focus last through the morning.