Across 1 real meal logged on Fuel Log, meals tagged onion average 870 kcal and 60g protein. Every entry below is a real photographed meal with AI-estimated calories.
A vegetable so universally useful it's basically free seasoning, though it does pack carbs once cooked down—a medium onion runs 45 calories raw, more when caramelized. Watch portion sizes on caramelized versions; they're calorie-dense and sneakily easy to overeat.
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