Eating fruit by itself can have a reduced impact on blood sugar and the corresponding insulin response, than if eaten with other types of carbs.
The sugar in fruit is called fructose, which is different from glucose (most carbs other than fruit). Glucose can be digested from the small intestine directly into the blood stream to be used by the body, while fructose has to go through liver first and is stored in the form of glycogen. Fructose has about one-third the insulin response of glucose, and that is the main reason that most fruits have a low to moderate glycemic index.
According to a study published in Archives of Internal Medicine, lower glycemic index diets are best for weight loss. Lead researcher, Joanna McMillan-Price said, “we found that moderate reductions in glycemic load appear to increase the rate of body fat loss, particularly in women …”
If weight loss is the main goal, then eating fruit by itself can be a nice, simple strategy to assist in the battle of the bulge. If you combine fruit with other glucose based carbs, you lose this advantage of liver metabolism and the resulting lower insulin response.