Over the years, man has mucked around with fruit so that it is super sweet and has a much higher sugar content than the original. Wayyy back, our ancestors had not so sweet berries and other fruits that don't have the glycemic impact of the ones available today.

I have to laugh at my weight watching co workers who all started their diets January 1, and now have ballooned up because they eat "free" foods such as fruit and popcorn.