Now we can’t eat protein. What can we eat?

Zoe Williams: This week a new report said that a diet high in animal protein could increase oour chances of dying from cancer or diabetes fourfold. So if protein has joined sugar, fat and carbohydrate in being bad for us, what's left for dinner?

Do children really get sugar rushes?

We're quick to blame sugar for our children's hyperactivity and own energy crashes after eating something sweet – but scientific evidence points to a more complex explanation

Can peanut allergies be cured?

Luisa Dillner: A recent study suggests the condition may one day be treatable. What are the causes of peanut allergy – and how far off is a cure?