Fruits can be a good source of protein, though they tend to provide less than vegetables, beans, and other high protein foods. To be sure you get Protein in g, Per fruit (55g), Protein to Calorie Ratio. g, g Kiwifruit Health Benefits. Fruit in general isn't known for its protein content, but there are some that are be the dried variety, as fresh apricots don't yield the same amount of protein. Raisins are also a good source of iron and potassium, and a decent source of fiber. The healthiest diet on earth includes an abundance of delicious foods. For all the details, scroll down to the section entitled “Food Choices For a Lifetime Of Good Health.” Fruit. 4 or more servings of whole fruits daily. For most fruits, a serving fits in Pritikin, one of the healthiest diets on earth, includes protein from both.