I had gastric byp and I was wondering if the natural sugar in vegetables are all right or not?

I ask because you can have all the fruit you want and 100% fruit juice but I do not remember if they said anything about the veggies. Like a small ear of corn has 4 grams of sugar and I can only have 5 at a time. That is why I am wondering if it falls in the same category as the fruit. I figure it does. Thanks