@Ooshie my consultant was talking about fruit this week, she says although it's free she advises more veg than fruit and if you're fruit heavy it may affect it. I'm not a big fruit eater and if you think about a banana a medium one is 80 calories, a couple of those a day and then a tangerine or two, an apple and some berries would soon add up.
0.5 is still a loss, combine it with the week before and then see what you lost in a fortnight, it'll make it feel better!