Public Health Nutrition, a scientific journal, invited Yach to explain his motives, which he did in an editorial, stressing the need for collaboration between the public and private sectors in addressing food-related health issues.

NEWYORKER: Snacks for a Fat Planet

Questionnaires filled in immediately after the courses showed an immediate boost in participants' confidence in cooking, preparing and trying new foods, researchers reported in the journal Public Health Nutrition.

BBC: Cooking classes 'a boost to healthy diet'