This product is likely MSG Free.
Carbonated water, contains 2% or less of: grapefruit juice concentrate (addas a negligible amount of sugar), natural flavors, citric acid, aspartame, acesulfame potassium, modified corn starch, ester gum, sodium benzoate (preservative), calcium disodium edta (to protect flavor).
Contains: phenylketonurics: contains phenylalanine.