A million and one (raising hand).
When I eat vegetables I only eat fresh, raw vegetables. Since I was a child I've been unable to eat most cooked vegetables. My parents could not understand how I could sit for hours refusing to eat the cooked vegetables on my plate. What I couldn't quite describe to them is that cooked vegetables literally make me gag. Just the smell of some vegetables and I'm gagging. They nauseate me. I've read that this is some kind of known medical condition, but there's nothing I know that can be done about it. The taste and smell of cooked vegetables, to me, is nearly identical to the smell of rotten vegetables. Imagine the smell of vegetables left to rot in a hot garbage can for a few days - that is how cooked vegetables smell to me. And I've compared the two.
However, I've found the some oriental vegetables, if stir-fried just right, are fine and I will eat them when they are available. But, most of the time I just eat raw veggies - lettuce, broccoli, cauliflower, sweet onions, carrots, celery, peppers, etc. Oh, and the raw veggies must be very fresh.
I've theorized that I'm somehow very sensitive to the chemicals or enzymes or whatever that are present as the vegetables break down in their rotting process. And that those same chemicals or enzymes or whatever are also released when the veggies are cooked.
I just live with it. My kids love veggies - they fight over the last serving broccoli even. I guess I didn't pass it on to them.