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Gregg Wallace discovers the high-tech acoustic kit being used to get an edge in the battle to bring us a perfect avocado. A look at what's going on in the new battlefield of luxury products on a budget, and Babita Sharma uncovers what we can learn from supermarket data gatherers.

Gregg Wallace and journalist Babita Sharma get the inside track on the latest tactics in the supermarket wars to help us stay one step ahead. This time, they're looking at one of the biggest battlegrounds - health. Gregg discovers the exotic ingredient being used to produce a healthier burger and goes on the trail of a major health trend - spiralised veg. Meanwhile, Babita finds out how we're being manipulated by food health labels.

Gregg and Babita look at one of the fastest-growing battlegrounds - convenience. Gregg finds out what it takes to bring us the easiest ever fish and discovers how supermarkets decide where to open convenience stores. Babita travels to Spain on the trail of our favourite convenience fruit - the easy peeler.