A Nutritionist Ranked the Best Fruit For Your Kids — Plus What to Skip

Juice and smoothies should be approached with a little more apprehension because they are packed with sugar and lack the fiber that fresh fruit contains. Fiber is important because it can help prevent blood sugar spikes. "[Juice and smoothies] should be used as an occasional treat, but should not be consumed on a daily basis, even if the juice is 100 percent fruit," noted Kubala.