Technically speaking, soft drinks such as Coca Cola Zero do not break the fast because they have no calories, although many experts indicate that if our goal with intermittent fasting is to lose weight, these soft drinks can have a rebound effect.
During your Fasting Window
If it's unsweetened, contains zero calories, and does not change your macros (fat, carbohydrates, proteins), you can drink it.
“Technically speaking, most diet sodas that have zero calories will not break a fast,” explains Autumn Bates, a certified clinical nutritionist in Manhattan Beach, California.
Diet Coke contains zero sugar and zero calories. Because of this technically speaking, it will not break a fast. However, if your goal with Intermittent Fasting is to lose weight, sipping on Diet Coke might not actually be working for your goals.
Drinking purified water will not break your fast since it contains no calories or macronutrients such as protein, fat, or carbohydrates.
Yes, you can drink diet soda intermittent fasting. Drinking zero-calorie soda while fasting is generally safe as long as you stick to one or two cans per day. Just keep an eye on your body — if you start experiencing more sugar cravings or an increased appetite, maybe try some other zero-calorie drink options.
Food and drinks that contain calories
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.
Soda. Skip it. If you're wondering if you can drink soda (or diet soda) while you're doing intermittent fasting, Palinski-Wade recommends staying away from soda in general, even if you're not following a diet like intermittent fasting.
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.
Yes. We sweeten Coke Zero Sugar in our bottles and cans with a blend of aspartame and acesulfame potassium (or Ace-K). Together, they create a great taste with zero sugar and zero calories.
Does Coke Zero Raise Blood Sugar? In the short term, Coke Zero Sugar will not raise blood sugar levels. This is because artificial sweeteners have no carbohydrate content nor glycemic load. However, some research suggests that sweeteners may have an effect on blood sugar levels in the long term.
If you don't eat for 10–16 hours, your body will go to its fat stores for energy, and fatty acids called ketones will be released into the bloodstream. This has been shown to protect memory and learning functionality, says Mattson, as well as slow disease processes in the brain.
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.
Does diet soda affect fasting? Yes, even though diet soda contains no or very few calories, it still breaks the fasting process because it triggers insulin responses. Plus, it contains many artificial sweeteners. That's why you should avoid drinking diet soda during a fast.
Water fasting is another zero-calorie fast, which can be anything from 24–72 hours (some people go a lot longer). During the fasting period, you only drink water. It's an approach we don't recommend unless you have medical supervision. Dry fasting is not only no food, but no drinks of any kind either.
Diet soda has links to weight gain and metabolic syndrome, which can make diabetes worse or increase the risk of it developing. Some sweeteners in diet soda even cause insulin spikes in the blood which worsens insulin sensitivity over time and can eventually raise blood sugar levels.
If you're drinking two 12-ounce cans of regular Coke each day, you could eliminate 280 “empty” (non-nutritive) calories by switching to a zero-calorie alternative. Over a month, that's 8,400 fewer calories, enough to lose almost two and a half pounds.
Coke Zero Nutrition & Ingredients
All three variations of zero calories Coca-Cola products contain 0 calories, 0g carbohydrates, and 0g of sugar.
It contains artificial sweeteners that give it a sweet flavor without adding calories, like aspartame and acesulfame potassium. Coke Zero is an excellent option if you're trying to lose weight because it has no calories, which can help you lower your overall calorie intake.
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.
Your Fasting Window is Too Short
This means it won't burn stored fat, and there won't be significant weight loss. As one study concluded, a fasting window of 18-19 hours is more effective in terms of weight loss than those between 12-17 hours [11].
YOU'RE NOT EATING ENOUGH DURING YOUR WINDOW
You'll be so hungry, you may start eating and not stop. As well, the body stores food to protect itself. Your body will sense the need to stock up on reserves and may store those extra pounds as fat instead of lean muscle.