"Back in the Old Days" when a person counted calories ONLY 1/2 of a medium banana was considered one serving. Banana's glycemic index rises the riper they get! I didn't know that until recently. Banana's are considered a good carb with high glycemic index (see above). If you are diabetic, it would not be the best choice for you depending on what else you ate that day since it raises your blood sugar more than other fruits. It is a good choice for you if you follow Volumetrics. Bananas are a great source of potassium and fiber.
Again, checking any portion guidelines will show that what we think is one serving can actually be two. One medium banana (going back to the old days of plain calorie counting) was considered TWO servings of fruit even back then. Just like 1/2 c. of orange juice is considered ONE serving of fruit. And think of how it is served in most restaurants.
The main thing is that we all need to get back to relearning what "normal" portion sizes are. They are definitely NOT in restaurants and for those of us with a weight issue weren't for us in the past.
Consider this: 1/2 c. unsweetened orange juice, 1 med. banana and 1 med. apple would satisfy 4 servings of fruit in one day. That would be in your three meals and/or a snack.
Also consider this: 1 c. of green vegetables and 1 large baked potato are also 4 servings of vegetables for one day.
So, you have already satisfied 8 servings of both fruit and vegetables quite easily. If you added a sliced tomato at lunch and 1 medium carrot for an additional snack you have increased that to 10-11 servings.
I don't think this is difficult to do at all each day. What do you think?