Donnie Maclean

Donnie Maclean spent two years developing the concept of delivering nutritious fast food.

He teamed up with the aptly named Professor Mike Lean of Glasgow University, a nutrition expert, to develop the Eat Balanced pizza, an unprecedented way of delivering all the nutrients that humans require in one complete meal.

The pizza, in three flavours, has hit the supermarket shelves. Donnie's planning to launch more toppings, and move into the "healthy curry" movement. With Scotland's health statistics creating unenviable records, and a diabetes crisis facing the western world, he may be on to something.

But launching a food product is tough. The Entrepreneurs follows Donnie's struggle to establish the brand, build partnerships with the major retailers, and compete with giant competitors.