Water in the stomach isn't harmful, but water in the lungs absolutely is. If the human digestive system can trivially break down the amounts of aspartame found

Water in the stomach isn't harmful, but water in the lungs absolutely is. If the human digestive system can trivially break down the amounts of aspartame found in a diet coke, it's fairly pointless for just about anyone to entertain the scenario of inhaling a bucket of pure aspartame crystals.