Food for Thought starts by looking at the outlandish creatures that can be produced by traditional breeding practices alone - from the cows that carry twice the muscle mass of their ordinary bovine counterparts, to the chickens that are completely devoid of feathers.
Other issues discussed are the high-tech production of giant GM salmon that could help save our dwindling fish stocks, and GM rice that has been modified to contain carotenoids, precursors of vitamin A, that could help prevent common developing world deficiencies that can lead to blindness.
By the end of the programme, Olivia is a convert, but co-presenter Giles reserves judgement. He finds that the muscle-bound meat doesn't cut the mustard on the flavour stakes.
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