I think the reason for not eating nuts is because Accutane increases your fat and cholesterol levels. That is the reason you have your blood work drawn every month because those levels will increase even if you are on a good diet..and if they get too high they have to stop the accutane.(those are artery clogging so you have to watch closely) Not just nuts but all junk food should be avoided...like fast food places or anything high in cholesterol or fats.