Fruits do have naturally occuring sugars, so they don't keep blood sugar down, per se. However, certain fruits are lower on the glycemic index, and thus will raise blood sugar more slowly. Generally, fruits with more fiber content, i.e. cherries, apples, pears, and plums will have a lesser affect on your blood sugar than some of the tropical fruits like mango and pineapple.
I eat 1/2 a banana with natural peanut butter almost every morning. Bananas have a moderate affect on my blood sugar, but I just bolus insulin for it, like I would any other carboydrate, and it's not an issue.
I use the glycemic load and glycemic index. I am not on medication, and the best fruits have been BERRIES -- all berries, strawberries, plums, cherries and pears. But, watch your servings. Try to keep to one serving. I usually eat them after a light meal, or with Greek yogurt. I also have tested mango, and had no problem. Apples were mid-range, and I have not tested with oranges yet. Pineapple, bananas, and figs would be higher glycemic (sugar load) and should be avoided. (You can find that info on David Mendosa's site.) However, it depends on your medications and/ or insulin how you handle fruit. If you have a few extra test strips, it would not hurt to check your after meal reading after eating your favorite food or fruit. I love strawberries in my yogurt smoothie. So, I am happy that I can still eat some of my fave fruits. :) And you should be able to also.
Sweetness of fruits is like Diabetes of Human body. Sugar is out off control whether it is within the fruits or within our human body. Drink the unripe fresh pineapple and papaya juice between meals, it will reduce your body sugar by few mmol. When human is not "ripe" insulin is able handle the glucose in the body. Likewise the enzyme of fresh unripe Pineapple will prevent sugar formation. This fresh enzyme (bromelain), not yet denatured, in the fresh unripe nature will help our body burn off glucose. Test your gluco-blood before drink and after drink (2-3 hours later).
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