Well, yes and no.
Let’s start with the “no.” In some sense fruit sugar (fructose) is better for you than table sugar (sucrose), because fruit sugar is broken down in your body at a much slower rate than table sugar. This means that sugar from fruit causes less of a spike in your blood insulin than table sugar does, which is favorable for your body fat levels as discussed in the “White Devil, White Devil” chapter of Your Fat. If you’re going to eat a lot of sugar, whole fruit is probably the best place to get it from.
Now at the same time, yes, you’re right. Even though fruit sugar is a little better for you than table sugar, and even though you get loads of vitamins and phytonutrients when you eat fruit, in the end you still also get a lot of sugar. This is a lot of energy that your body will store as fat if it isn’t used through mental or physical activity.
In the end though, most people don’t have to worry about eating too much fruit. Most of us don’t get nearly enough fruits and vegetables in our diets to really make this a concern. If you are working behind a desk with a 4-smoothie-a-day habit, maybe you’ll want to think about cutting back a bit. Otherwise, eat the fruit. Your body will thank you.