Introduction: What’s Really in Your Food? Have you ever eaten a packet of flavoured chips, instant noodles, takeaway food or a processed snack and wondered why it tastes so savoury, rich and satisfying? One possible ingredient responsible for that distinctive flavour is Monosodium Glutamate (MSG). MSG is one of the most widely used flavour enhancers in the food industry. It gives food a characteristic savoury taste known as umami – often described as the fifth basic taste, alongside sweet, sour, salty and bitter. But MSG has also attracted considerable controversy. Some people report headaches, flushing, thirst, nausea or other symptoms after eating foods containing it, while others consume it regularly…