Lopsided diets and where to find them
The first diet book was published in 1863: Letter on Corpulence Addressed to the Public.
Since then bookshop shelves have filled up with dozens of diet books from those based on a single food – such as celery or pineapple – to those which exclude something, like lactose or yeast. But also diets on which scientific debate is still raging: low carbohydrate or low fat or high in fat or high in protein. It is not surprising that people find it confusing.
What does scientific research have to say about all these diets?