ITV's fitness guru Joanna Hall tells Fiona Tyrrell that awareness of the interaction between exercise and nutrition is vital in helping people change their body shape.
Carb curfew, workout wedge and the 80-20 rule are just some of the mysterious buzzwords associated with a new diet and fitness regime that is arousing a lot of interest beyond the usual fascination with the latest fad diet.
In her new book and video, Drop A Size For Life.