📋 Quick Answer
Air frying reduces calories 70-80% and nearly eliminates harmful compounds compared to deep frying.
The Science
Deep frying: food absorbs 8-25% of its weight in oil (adds 100-300 calories). High temps (180-200°C) create acrylamide (probable carcinogen), advanced glycation end-products (AGEs — inflammation), and oxidized lipids. Air frying: uses 1 tbsp oil or less (vs 2-3 cups). Hot air circulation. Acrylamide reduced 90% vs deep frying. Calories reduced 70-80%. French fries: deep-fried 312 cal/100g, air-fried ~160 cal/100g. Texture difference exists (less crispy), but health difference is massive. Is air-fried food "health food"? No. Is it dramatically healthier than deep-fried? Yes. Air fryer is a legitimate harm reduction tool.