Typically, fruit should be limited to 1-2 servings/day, because most fruit has a lot of sugar. Apples and pears are a better choice than many, because of their high fiber content.
A good, low glycemic diet would include plenty of protein (meat, chicken, fish, dairy, eggs, etc), lots of veggies, which are low calorie/high fiber, so they take longer to break down and don't spike blood sugar, and whole grains, such as brown rice, whole grain breads, pastas and cereals, etc.