Food Unwrapped

MSG, Pistachios, Onions (10x8)

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Jimmy Doherty, Kate Quilton and Matt Tebbutt present some of their favourite investigations. Is food additive MSG really as bad as some scary headlines claim? Jimmy visits a colossal factory in Thailand that produces a quarter of the world's supply of MSG, and finds out about its surprising origin. Kate visits California to find out why there are so many closed pistachios in the packs we buy. She's astonished that it's down to the race against time to harvest the nuts before the crop succumbs to the dreaded navel orange worm. And despite some rigorous quality control, some worms can still end up in our packs. And Matt enlists the help of an innovative farmer and a team of cage fighters to find out why slicing onions makes you cry.