One can of Sprite = 21.8g sugar per 330mlPhotograph: GuardianOne medium slice of Kingsmill soft white bread = 1.5g sugarPhotograph: GuardianOne medium slice of Kingsmill wholemeal bread = 1.7g sugarPhotograph: GuardianPizza Express house dressing = 2.7g sugar per 100gPhotograph: Guardian250g margherita pizza made by Pizza Express = 11.2g sugarPhotograph: GuardianTesco low-fat strawberry yoghurt = 20.2g sugarPhotograph: Guardian