Why is monosodium glutamate added as a flavor enhancer to crisps?

Monosodium glutamate (MSG) is added to crisps as a flavor enhancer because it intensifies the savory taste known as umami, which can make snacks more appealing. It enhances the overall flavor profile without overpowering the original taste of the ingredients. Additionally, MSG can promote a sense of satisfaction and enjoyment, often leading to increased consumption. Its use in processed foods like crisps helps manufacturers create a more flavorful product that attracts consumers.