Diet Coke is not really 0 kilojoules, it contains a small amount of calories. The zero calorie labeled in sugar-free cola is not really no calories, so dieters should be careful not to drink too much sugar-free cola, as sugar-free cola can make people gain weight.
China's standard "General Rules for Nutrition Labeling of Prepackaged Foods" (GB28050-2011) stipulates that "no sugar" means no more than 0.5 grams of sugar per 100 milliliters, while "zero calories" means no more than 17 kilojoules of calories per 100 milliliters. The calorie content in 100 milliliters is no more than 17 kilojoules (about 4 calories), so the sugar-free cola contains only a small amount of calories, not really 0 kilojoules.
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Sugar-free colas contain no sugar, but do contain a sweetener called aspartame, which maintains the taste of sugar-free colas. While synthetic sweeteners don't provide calories, the sweeteners can cause the taste nerves to gradually become dependent on them, and even lead to a greater love of sweets.
Weighing people had better quit this kind of drink, although it is labeled as sugar-free and calorie-free, but after consuming it, it will instead make everyone crave for sweets even more, in other words, the more the person loves to drink sugar-free cola, his diet instead may also be more on the sweet side.
Sugar will not only make people fat, blocking the weight loss of dieters to lose weight, but also make the skin become rough, eating too much sweet food will also lead to acne, long-term eating sweets will accelerate the aging of the skin.
Reference: Baidu Encyclopedia - Sugar-free Coke