Can you have Coke Zero on a fast? Yes, as another type of diet soda, you can have Coke Zero on a fast. As with any diet soda, moderation is key. Just watch out for potential side effects and avoid drinking it from mid-afternoon onward since its caffeine levels could impact your sleep routine.
If you're fasting for weight loss or metabolic health, diet soda does break your fast. If you're fasting for gut rest, diet soda does break your fast. If you're fasting for longevity, more research is needed here, but it's safer to avoid while fasting.
Diet Coke contains zero sugar and zero calories. Because of this technically speaking, it will not break a fast.
When on a strict water fast, you should drink only water — plain water, sparkling water, or zero-carb water with electrolytes. Some water fasts also include flavored water with lemon or peppermint leaves. Zero-calorie, zero-carb flavored drinks sweetened with stevia and sugar-free vitamin water are also good options.
Strictly speaking, any amount of calories will break a fast. If a person follows a strict fasting schedule, they should avoid any food or drinks containing calories. Those following a modified fasting diet can often eat up to 25% of their daily calorie needs while fasting.
During your Fasting Window
If it's unsweetened, contains zero calories, and does not change your macros (fat, carbohydrates, proteins), you can drink it.
No, Coke Zero does not spike insulin levels. Coke Zero is a sugar-free, low-calorie carbonated beverage that does not contain any sugar or carbohydrates. This means that it will not cause a spike in insulin levels the way that regular soda or other sugary beverages can.
Technically speaking, eating or drinking any calories breaks a fast. That means it's generally considered OK to drink black, unsweetened coffee or tea, as well as water.
With any intermittent fasting schedule, only water, black coffee, tea, and other calorie-free beverages are permitted during the fasting period. You cannot consume any food or caloric beverages.
While beverages such as Diet Coke (or diet soda in general) are technically keto-compliant, they may lead you to crave more carbs. A mini review suggested that these artificially sweetened sips may trick the body into craving the calories and carbs it believes it's getting from the diet soda.
Keto and Low-Carb Beverages
Most health experts (and keto diet gurus) recommend avoiding low-calorie, zero-calorie and sugar-free beverages when following the ketogenic diet. They point to studies showing that the consumption of artificial sweeteners activates the same “reward” system in the brain that sugar does.
Artificial sweeteners such as Stevia, Swerve, Aspartame, and Splenda won't break your fast, since they don't seem to have an effect on insulin secretion or blood glucose.
Stevia is zero-calorie and protein-free, so it likely has no impact on autophagy, meaning you're all set to use stevia if you're fasting for longevity. In Summary: Fasting for metabolic health/weight loss: does not break a fast.
Both drinks are sugar free and calorie free. Coca‑Cola zero sugar looks and tastes more like Coca‑Cola original taste, while Diet Coke has a different blend of flavours which gives it a lighter taste.
And a number of studies in humans (such as this one and this one) have actually found a tendency toward weight gain among people drinking artificially sweetened beverages. But research has been mixed: other studies have found that artificially sweetened low-calorie beverages can help with weight loss.
Coca‑Cola Zero Sugar is our sugar free cola, that looks and tastes even more like Coca‑Cola original taste, but without the sugar.
The general rule of thumb is that if you stay under 50 calories, then you'll remain in the fasted state.
The 3-Day Diet claims dieters can lose up to 10 pounds in three days. Weight loss is possible on The 3 Day Diet, but only because it is very low in calories. And realistically, most of that weight is likely water weight and not fat loss because the diet is so low in carbohydrates.
Studies suggest that a 24-hour fast once a week may reduce the risk of metabolic syndrome because 24-hour fasts reduce LDL (“bad”) cholesterol and triglycerides, increase HDL (“good”) cholesterol, and reduce body fat.
Additionally, it will take your body a while to get used to this new eating schedule. So don't expect results right away. You may need to wait between 2 and 4 weeks to see or feel any results.
What Is Dirty Fasting? Dirty fasting is a different take on time-restricted in which more calories, or certain foods, are allowed during the otherwise clean fasting window. The goal is to disrupt the concept of fasting as little as possible while achieving similar benefits as a clean fast.
Yes, 12 hours of fasting is enough — even this short fast can lead to health benefits and weight loss. Longer fasting periods can potentially increase those benefits, but 12 hours is a great — and safe — place to start before ramping up to extended fasts.