Monosodium glutamate

‌Flavor enhancer‌: Widely used in processed foods (e.g., soups, snacks, frozen meals)1114.

‌Asian cuisine‌: Key ingredient in Chinese and Japanese cooking, traditionally derived from seaweed (kombu)16.

Sold as ‌tabletop seasoning‌ (e.g., "Ajinomoto")17.

Labeled under alternative names like "natural flavorings" or "hydrolyzed protein" in ingredient lists11.