Does blending fruits into a smoothie change the sugars into more harmful sugars than in the whole fruit?

I've heard that blending fruits into a smoothie changes the sugars in the fruits so that they actually become harmful, unlike the sugar in whole fruits which are good for you. Can anyone confirm this? I find it much easier to take 3 or 4 different fruits as a smoothie than eat the whole fruit, but want to avoid any harmful sugars.

Does blending fruits into a smoothie change the sugars into more harmful sugars than in the whole fruit?
no.. it will not change the sugar content of the fruits into something else. it's still mostly fructose... some fruits contain glucose (like grapes), but they won't change in the blending process
Reply:it does not create harmful sugars.......
Reply:Simple. natural sugars don't become harmful unless you could chemically process them somehow. Blending doesn't do that.
Reply:This is a good question. Since there shouldn't be any chemical process or fermentation taking place, then the sugar (fructose) should remain the same even after the fruit is blended.





I guess we could address the concept of harmful sugar. When people typically think of sugar as harmful, they are usually referring to sugars with a high glycemic index - sugars like Sucrose, dextrose, maltodextrin, corn syrup, etc. If someone implied that blending fruit raises their glycemic index (making it more harmful... FYI I like sugars.. All of them and believe in moderation they are fine for me. A diabetic on the other hand may have a different philosophy), they may have been thinking that the fiber in fruit (which helps slow digestion and therefor lowers the glycemic index) was compromised, by the blending process, in a way that would reduce it's efficacy on digestion and absorption of sugars. This could be likened to a manufacturing process to some degree.





I would think if blending the fruit did degrade the natural fibers, the overall net effect would probably be negligible. So smoothie up!!