By Laura Forsyth Protein is crucial when it comes to muscle building, however, a survey highlighted a lack of understanding of its role and value when consumed as part of a fitness regime. A YouGov survey, commissioned by Graham’s Family Dairy found that 37 per cent of UK adults who exercise believe wrongly that one of protein’s key roles is to provide energy. Meanwhile, only 12 per cent of all UK adults were consuming food at the optimum time after taking part in physical activity. More surprisingly, the poll revealed that only 30 per cent of UK adults who exercise actually know how much prot…