We're used to hearing the bad news about our food. What's the good news? Cherry Healey puts some favourite supermarket staples to the test and uncovers the surprising secrets and unexpected powers of the food that people take for granted. With the help of members of the public from around the country, plus a team of experts, she investigates how milk can help muscles recover from exercise; what effect the way tea is brewed has on its health benefits; why there is more to baked beans than meets the eye; and whether it's really possible to be addicted to chocolate