They expect to earn a return, but to see social impact (jobs created, children in school) and spiritual fruit (families seeking prayer from chaplains and churches built).

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Designed after the 2010 Dietary Guidelines for Americans, the new rules require schools that participate in federally funded school lunch programs to offer fruit and vegetable daily and in larger quantities than in the past, serve only fat-free or low-fat milk, and limit calories by age.

FORBES: Will New Lunch Regulations Help Food Entrepreneurs?

It offers a taste of old-school Russia, selling everything from fruit and vegetables to knock-off Lenin alarm clocks, with lots of fascinating junk shops to delve through.

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Dr Mar Carmena is based at the School of Biological Sciences and has been studying fruit flies for the past 25 years.

BBC: Edinburgh, Fife & East Scotland

From January, Blackpool's 12, 000 primary school pupils are to receive free milk, fruit juice, cereal or toast as part of a three-month trial.

BBC: Lancashire

Fresh fruit and vegetables are available at every school daily.

CNN: Schools struggle to feed kids healthy food

There, over tea and fruit, Sami ul-Haq pointed out that teachers at the school offer math, social studies and English in addition to religious studies.

NPR: Trip to Religious School Offers Window on Pakistan

In rural areas like Araioses there are fruit trees, there are rivers to be fished, now there are free school meals and there is a sense of solidarity that encourages the sharing of food.

ECONOMIST: Three square meals a day

There is a child nutrition bill that's working its way through Congress right now, and one of the things that it's trying to do is to encourage healthier eating, to provide incentives for better school lunches, as one of the previous callers mentioned - healthier, higher nutrition standards, incentives for more fruit and vegetables, things like low-fat milk.

NPR: Child Hunger: Nutritious Food Tough To Afford