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A global commodity, and now part of a food revival. Sheila Dillon on the wonders of yeast.
BBC Radio 4 FM
Sheila Dillon follows two schools as they attempt to transform the way their pupils eat.
Sheila Dillon investigates how emergency foods are made for disasters, droughts and wars.
BBC Radio 4
Sheila Dillon investigates the issue of trans-fats in our food.
Sheila Dillon seeks out fish and cattle along the River Nith.