kate , who appeared on the cover of the 2012 sports illustrated swimsuit issue , lives by the abc rule : no alcohol , bread or processed carbohydrates , and goes through a 48-hour juice cleanse before every big film scene of photo shoot .
in a new interview with the evening standard magazine , kate reveals that she eats lean and green meals every day , with only the occasional ` cheat day ' , where she indulges in salty fried food .