2. The Junk Food Challenge

Junk food lover Gregg Wallace looks at what's in it and why we love it so much.

3. Ready, Steady, Eat

Gregg Wallace finds out about the 15 million ready meals we eat each week.

4. Hungry in Hospital

Gregg Wallace investigates why people are going hungry in hospital.

5. Healthy Profits

Gregg Wallace investigates healthy eating and reveals some of the tricks of the trade.