Culinary fruits are so incredibly diverse in terms of nutrients and digestion that you're going to have to do a bit of self-experimentation. See how starchy fruits (e.g. bananas, plantains) compare to berries (e.g. blueberries, raspberries) compare to fatty fruits like avocado.
All fruit is "paleo" in its unprocessed state, but just because something is "paleo" does not make it a good source of nutrition for you as an individual.
You can. Different people respond differently to different foods. All of us don't have the same goals, also. How much fruit are you eating? What else are you eating?
Personally, when I was trying to lose weight more aggressively, I found that my weight loss stalled if I ate too much fruit. I'm not even talking about eating fruit all day--I mean one piece daily. When I backed off the fruit a bit, the weight loss picked up. (I had a similar experience with nuts.)
Most sweet fruit is mostly fructose, fiber and water, with some micro-nutrients like vitamin C. You can eat some fruit, but nutrient-wise it's far from ideal. When losing weight, I wouldn't eat more than one piece of fruit per day.
Remember that sweet fruits were not really so sweet 25,000 years ago because no one was selecting the seeds of the sweet fruits and planting them, hoping to get more sweet fruits the next season. The same could probably be said for avocados and other non-sweet fruits. So there is a lot of tweaking that we have to do to make sure that the fruits that we eat match our individual genetic structure plus compensate for the damage of a lifetime of not eating paleo. So, with fruits, you have to work out the details, as suggested by other posters above.
Yes you can eat fruit. They're are, contrary to belief, many sweet wild fruits.
Fruit is full of fiber,anti-oxidants, anti-disease compounds and it taste delicious. Personally I eat a lot of fruit. Melons, berry's, citrus, it's all so good. I do have a high activity level though. Just make sure the amount you are eating is working FOR YOU! It's better to go eat a large amount of fruit than it is to binge on ice cream or chocolate cake. If you feel you need more carbs. Eat some fruit or a bit of starch.
For those that are diabetics you may need to watch your intake. You can eat more carbohydrate granted you are regularly exercising though.
Yes fruit is paleo. Paleo is not a no-carb diet, it just tends to be lower in carbs. Like they said above, some people cam lose weight while eating fruit, some can't. I personally eat 3 servings of fruit a day. One problem with eating fruit is that the sugars in the fruit will lead to more sugar cravings later on in the day, so if you have a problem with sweets, then it's best to cut fruit out of the diet, unless you can be satisfied with subbing an apple for a piece of cake, which many people can't. If you're stalling on your weightloss, you can always try going a week without any fruit and see what happens. I for one get very grouchy when I don't have ANY carbs in my diet, and I find that eating fruit a few times a day is the only way I can maintain a paleo diet.
Also, be aware of the nutrient benefits of the fruits you're eating. Try to get the most bang for your buck.