Orange diet

Nige has stopped coming for breakfasts in the canteen in favour of eating oranges and satsumas. Hazel brought him a big bag of them this morning, then Mel came in from, dinnertime and had a big bag of satsumas for him too. Rick saw all these and said to him:
Rick: “If you eat too many you’re going to get ill.”
Nige “They can’t do you any harm.”
Me: “They might make you go orange if you eat too many. Then you’ll look like…(thinks for a while)…Jim.”