Does Lemon Water Break A Fast?

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By: Rachae's Nosheri


Lemon water has quickly become one of the most popular health trends in recent years, with people including it in their daily diets for its wide range of potential health benefits. 

But if you’re participating in intermittent fasting or other diets, like keto or paleo, you may be curious to know “Does lemon water break a fast?” – The answer is most likely no.

So, what exactly happens when you drink lemon water during an intermittent fast? Let’s dive in to explore the details.

What is Intermittent Fasting?

Does Lemon Water Break A Fast

First, let’s define what intermittent fasting is. Intermittent fasting is an eating pattern that cycles between periods of fasting and eating. It does not specify which foods you should eat but rather when you should eat them. During the fasting periods, you eat either very little or nothing at all. 

These periods are typically followed by periods of eating. Research shows that intermittent fasting can have numerous health benefits, such as weight loss, improved blood sugar control, and decreased inflammation.

Does Lemon Water Break A Fast?

We just learned about what intermittent fasting is, let us respond to the query “Does lemon water break a fast?”

The decision of whether to consume lemon water during a fast depends on your personal goals and the specific fasting protocol you are following. 

If your goal is to abstain from all calories, then yes, lemon water would break a fast as it contains some amount of calories. A typical slice of lemon contains about 2-3 calories, so a glass of lemon water may contain 10-20 calories, depending on the amount of lemon and water used.

However, if your goal is to engage in time-restricted eating or intermittent fasting, then consuming lemon water during the fasting window may not necessarily break your fast. The amount of calories in lemon water is minimal, and it is unlikely to significantly impact your blood sugar levels or insulin response.

Types of Lemon Water

Does Lemon Water Break A Fast

The effect of lemon water on your fast is determined by the type you consume and the number of calories it contains. As a general guideline, if a beverage has more than a few calories per cup (240 mL), it’s more likely to break your fast. Here are some common types of lemon water:

  • plain lemon water
  • lemon-herb water
  • artificially flavored lemon water
  • lemonade
  • diet lemonade

Some people may choose to opt for artificially flavored lemon water during a fast, as long as the beverage is free of added sugar. Additionally, diet lemonade can be consumed without breaking a fast if it is low in calories. 

However, regular lemonade should be avoided while fasting, since it contains added sugar which will break the fast. Therefore, plain lemon water or lemon-herb water are both great options for those who want to remain in a fasted state.

Lemon Water Nutrition

Lemon water is a low-calorie beverage that provides minimal nutrients. A 16-ounce (470-mL) glass typically contains about 9 calories, 3 grams of carbs, 1 gram of sugar, 1 gram of fiber, 0 grams of protein, and 0 grams of fat.

Moreover, lemon water provides a good source of vitamin C, potassium, and antioxidants. Vitamin C is essential for immune system support, while potassium helps maintain healthy blood pressure. The antioxidants found in lemon juice may also help to reduce inflammation and improve overall health.

Health Benefits of Lemon Water

In addition to providing hydration and some essential vitamins, drinking lemon water during a fast may help to improve overall health.

  • Lemon water can be a helpful aid for promoting weight loss during fasting. One study found that drinking water before a meal can help to reduce appetite and calorie intake, which can ultimately lead to weight loss.
  • Aiding digestion: The acidity in lemon juice can stimulate the production of hydrochloric acid in the stomach, which helps to break down food and aids in digestion.
  • Lemon water is a good source of vitamin C, which can help to boost the immune system and increase energy levels.
  • Vitamin C acts as an antioxidant that can combat free radicals and reduce inflammation in the body.
  • Drinking lemon water during fasting is that it can aid in detoxifying the body. Lemon water contains compounds such as citric acid that support the liver and kidneys in removing toxins from the body. 

How to Make Lemon Water

Making your own lemon water is easy and only requires two ingredients: lemons and water. You can use either bottled or filtered water, depending on your preference.

To make a simple lemon water, all you need to do is squeeze the juice of half a lemon into 12–16 ounces (355–470 mL) of cold water. You can also add a pinch of sea salt for extra flavor.

If you want to get creative, you can also add mint leaves, cucumber slices, honey, or ginger for added flavor and nutrition. Additionally, if consuming lemon water during a fast is not your cup of tea, then try infusing the water with other healthy ingredients such as berries and citrus fruits.


How Much Lemon Water While Fasting?

It is generally recommended that you consume 8 to 16 ounces (roughly 240 to 480 milliliters) of plain or unsweetened lemon water daily while fasting.

What Can I Drink During Intermittent Fasting?

It is generally recommended to drink water, tea (without added sugar or milk), coffee (without added sugar or cream), and other zero-calorie drinks while fasting.

Does Lemon Water Burn Fat?

Lemon water does not directly burn fat, but it may help to promote weight loss in other ways. For instance, drinking lemon water can help reduce appetite and calorie intake, which can lead to weight loss over time.

How Long Should You Do a Lemon Water Detox?

The length of a lemon water detox depends on the individual’s goals and preferences. Generally speaking, it is recommended to do a lemon water detox for 1-2 weeks to achieve its full benefits.

Can I Drink Lemon Water Everyday?

Yes, it is generally safe to consume lemon water every day. If you experience any adverse reactions, such as an upset stomach, then it is best to reduce your lemon water intake or avoid it altogether.

Can You Use Bottled Lemon Juice for Lemon Water?

Yes, you can use bottled lemon juice for lemon water. However, it is best to check the ingredients list of the product before purchasing as some brands contain added sugar or other additives. It also helps to look for organic options that are free from preservatives and artificial flavors.


After discussing the science behind fasting and examining the effects of consuming lemon water during a fast, we can confidently answer the question “Does lemon water break a fast?” It’s highly unlikely that the fast of most people would be broken by the small quantity of sugar found in a teaspoon of lemon juice.

However, individual factors can play a part in how you process and metabolize this tiny amount of sugar, so if you’re worried it could negatively affect your results, it’s best to avoid adding any kind of caloric drink or food while you are in your fasting window. 

Ultimately, fasting is highly personal and should be tailored to each individual’s needs – try different tactics to see what feels the best for you.

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Rachae's Nosheri

Rachael’s Nosheri is a Jewish deli located in 120 S. 19th St, Philadelphia, PA 19103. We serve breakfast and lunch comfort foods and deli sandwiches. Our extensive menu and reasonable prices make us a popular destination for locals and visitors alike. Our food is pretty good if you’re in the mood for deli sandwiches, and we’re known for our American, Bagels, Breakfast, Lunch Specials, and Sandwiches.

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