Fruit contains fructose, a different kind of sugar(carbohydrate)

By RosalieM Latest Reply 2015-02-02 08:35:39 -0600
Started 2015-01-27 14:49:54 -0600

There is confusion about fruit for diabetics, especially among the medical professionals.
Most sugars and carbohydrates digest through the small intestines and raise blood sugar within
15 -30 minutes. Fruit contains fructose, also a form of sugar. Fructose is metabolized through the liver. In doing an experiment, I found that it takes two hours for my blood sugar to rise to it's peak before starting to decline. I did this experiment by eating 15 grams of fructose 1 banana and one peach, first thing in the morning (fasting). I sat by the computer so as to not involve exercise. I tested my blood every half hour. It took two hours for my blood sugar to reach it's highest point and start to decline from fructose in the fruit. Since blood sugar is going up so slowly, we have the opportunity to work some of it off by what ever activity we are engaging in before it gets as high as it is going to go. On the other hand sugar from starch (flour) or sugar peaks in 15-30 minutes. Not much chance to work that off. The sugar content of fruit is not equal to sugar or flour for this reason. People get bent out of shape over fructose in fruit because of the bad press for high fructose corn syrup. It is bad! The concentration of fructose in high fructose corn syrup is much higher than in fruit. The same is true of Agave. High fructose corn syrup and agave can cause a fatty liver. Fatty liver is common in diabetics. Not a good thing. Fructose in fruit will not cause fatty liver. When you see you blood sugar spiking and you ate fruit, you blame it on fruit. But what did you eat 15 to 30 minutes before you tested? Your blood sugar could have risen because of the fruit you ate two hours ago added to the carbs you ate 15- 30 minutes ago. Fruit is nutritious and good for diabetics. You may want to time when you eat the fruit. I eat it after my meal. Any other carbs I may have eaten has caused my blood sugar to rise and fall before the fruit ever effects my blood sugar.

11 replies

GabbyPA 2015-01-28 09:15:08 -0600 Report

I enjoy berries, near ripe apples and pears and on occasion some cherries or grapes. I avoid bananas and things like mango (much to my sadness) because they are so high in carb for the portion. I do sneak them into smoothies now and then. Adding the protein powder helps with the spikes as well.

RosalieM 2015-02-01 07:52:40 -0600 Report

Did you know that slightly green bananas are high in resistant starch fiber like what is in Hi maize 260. That reduces the blood sugar rise. As the bananas ripen, they lose the resistant starch fiber. Hot potatoes raise blood sugar like crazy, but when they are cold they develop resistant starch fiber, so they don't raise blood sugar so much. Heat them up and it is gone again. The resistant starch fiber does not allow for full digestion of the starch. That is how it works.

GabbyPA 2015-02-02 08:35:39 -0600 Report

All my fruits I tend to eat pre ripe. I prefer the crunch and the flavor over the ripe fruits (except berries) So that is good news. I guess that is why my potato salad doesn't bother me as much as potatoes in soups or stews. Thank you for that insight.

RebDee 2015-01-28 06:14:19 -0600 Report

I heard that blueberries is the best fruit to eat because it causes the least rise in BS. Is this true?

jayabee52 2015-01-27 22:26:27 -0600 Report

Thanks for sharing that Rose. I love to eat fruit, mostly berries and pears.

Also there is a sweetener I had purchased for my late wife.
I was trying to find a sweetener to use with her as she had been using sugar to put in her tea. The artificial sweeteners, and the stevia didn't agree with her tummy, but when I used a product called Whey Low, a mixture of fructose, lactose and sucrose.

Because of the way it is digested (as you indicated) it has 75% fewer Calories than sugar, 70-80% lower Glycemic Index than sugar
Only 1 Effective Carb per Serving. see ~

God's best to you and yours


RosalieM 2015-01-28 05:52:11 -0600 Report

Thanks for that information, The American Diabetes Association, used to recommend fruit for diabetics. Then all the hoopla about high fructose corn syrup hit the news, they stopped the recommendation. The American
Diabetes Association follows, they do not lead as they should. High fructose corn syrup is bad as it has an unnaturally high concentration of fructose which causes fatty liver. The natural concentration in fruit along with lots of fiber is fine for diabetics. Frurit enhances the nutritional content of a restricted diet a diabetic must follow.

Type1Lou 2015-01-27 16:40:52 -0600 Report

My lunch, nearly every day is one apple, cored and sliced and spread with all-natural peanut butter. My Mom (who was not diabetic) ate an apple every day and lived to nearly 98 years of age…perhaps lending credence to the adage "An apple a day keeps the doctor away".

haoleboy 2015-01-27 17:10:44 -0600 Report

Apple. pears and berries are the fruits I tend to stick to when I can fit them in my diet. We have a number of fruit trees on our property and
i do find it hard to resist as I have always thought fruit directly off the tree taste best and I recall sitting in a tree in my grandfathers orchard as a boy of 5 or 6 eating apples until I got a tummy ache.


RebDee 2015-01-29 13:27:21 -0600 Report

Each year, I take a group of OWLs (older wiser ladies) on an outing to the apple country of Southern California where we can pick our own apples. It is a wonderful experience and Steve, you are right, they do taste better than apples from the grocery. Probably because they are fresher.

Type1Lou 2015-01-28 09:44:44 -0600 Report

Enjoyed your blog about apples! My favorite varieties are Honeycrisp, Gala and Fuji. When I lived in New England, I loved the Macoun variety but they don't travel well, so can't get them here in Florida. When we bought our Vermont house in 2002, it had a peach tree and several apple trees. It was the first time I ever ate a tree-ripened peach and the flavor just exploded in my mouth, it was soooo good! We sold that house in 2005 to move permanently to Florida, where I've discovered the joys of fresh Florida avocado…I think they taste better than the Haas variety. I've begun growing one from a pit. We're currently enjoying the Florida strawberries (but I think the ones in the Northeast were sweeter!) My Grandad had several apple trees and also had a vegetable plot every summer. When we'd visit, my cousin and I (maybe around 4 or 5 years old) would go into his garden and zip open the pea pods and eat the peas, leaving the empty pods on the plant. We also would pull up some of his carrots, and if they were too small, would stick them back in the ground…like we thought he wouldn't notice??? I'd forgotten those escapades… Freshly pulled carrots also have that explosive flavor you don't get from the store-bought variety.

haoleboy 2015-01-27 16:16:48 -0600 Report

Another common misconception is that all of the sugar in fruit is in the form of fructose … not the case. Only about 1/3 the sugar in bananas comes from fructose and only 1/2 the sugars in peaches comes from fructose (for comparison right about 1/2 the sugar in HFCS is fructose) … the rest from glucose. Table sugar (aka sucrose) is 1/2 glucose 1/2 fructose BTW.
Fresh fruit contains relatively small amounts of fructose and a wealth of beneficial nutrients but as with all foods you need to test your blood glucose response to various fruits as the amount and types of sugar they contain varies. Unless you are on a low carb or ketogenic diet it would probably serve you well to incorporate a small serving of fruit in your diet.


RosalieM 2015-01-27 18:13:11 -0600 Report

Sounds good to me. I had for people to reject fruit as it is nutritious and tastes so good.

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