Sugar-free colas are better than normal colas in terms of sugar content, but they are still not recommended for diabetics to drink regularly. Although there is no sugar in Coke, the sweeteners added to it can affect the body’s metabolism and raise blood sugar by affecting the intestinal flora.
Sugar-free Coke actually uses a sugar substitute to replace regular sugar (white sugar, sucrose, glucose, etc.). Sugar substitutes generally have less energy than sugar or no calories at all: like xylitol, mannitol, sorbitol, etc. still have some calories, but much less than regular sugar: like stevia, aspartame, sweetener, stevia, sucralose, saccharin, etc. basically have no calories and are sweet but do not immediately raise blood sugar after eating.
But that’s not to say that colas with sugar substitutes are safe to drink. One is because although low in energy, most sugar substitutes still have energy, and drinking too much of them can lead to excess energy and unstable blood sugar as usual. Two, sweeteners like aspartame are now proven by some studies to affect metabolism in the body by affecting intestinal flora, which is not good for blood sugar control.
And, sugar-free cola is still a carbonated beverage, which has an appetite-promoting effect and is not good for controlling total energy intake: carbonated beverages also contain a lot of phosphoric acid, which can lead to calcium loss in the body and increase the risk of osteoporosis.
So people with diabetes can occasionally relieve their cravings with a sugar-free Coke.