Fruit is pretty contentious in the Paleo community. On the one hand, fruit definitely counts as a whole food. On the other hand, we spend a lot of time and energy telling you to stay away from sugar, and fruit has sugar, so how can we reconcile them?
Fruit As A Whole Food
First, fruit is not sugar, it contains sugar. It also happens to contain plenty of other things we need to maintain good health, like fiber, vitamins, minerals, and antioxidants, all of which help reduce or even eliminate the negative impact of sugar.
Different Forms of Sugar
Second, the sugar contained in fruit is not the same as table sugar. Table sugar is sucrose (half glucose, half fructose). Fruit contains sucrose, fructose, and glucose in various ratios depending on the fruit. When people say fructose is healthy because it’s the type of sugar found in fruit, they only have it part right.
There are plenty of people out there who say that fruit is not Paleo, or that it should be consumed occasionally, rather than every day. Don’t listen to them. Listen to your body. If you go a few days without any fruit and start to drag, you might need the extra sugar. If abstaining from fruit makes you feel awesome, then by all means, don’t eat it, but don’t let anyone else tell you what’s best for your body.
Mark Sisson has several good reasons to include fruit as part of a healthy lifestyle.