Nearly half of Britons suffer from a food intolerance, reports Daily Mail. An estimated 45 percent of people develop digestive problems, migraines and skin complaints because of certain foods they eat.

Only around two percent of the population has a true food allergy, which can be life-threatening; however, up to half of the population may have food intolerances (also known as food sensitivities or hidden food allergies) linked to migraines, eczema, irritable bowel syndrome, and other problems.

The most common food intolerances include dairy and lactose (a sugar in milk), along with wheat and gluten (a protein in wheat).

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