Does An Americano Break A Fast?

Last Updated on: 6th September 2023, 01:51 pm

Imagine yourself in the early morning, standing at a bustling coffee shop counter. As you contemplate your fasting journey, your eyes settle on the inviting aroma of freshly brewed Americano. You wonder: Does indulging in this beloved beverage break your fast?

In this article, we will explore the impact of an Americano on intermittent fasting. By examining the pros and cons, we aim to provide evidence-based insights to guide you toward a sense of belonging within your fasting community.

Can I Have An Americano While Intermittent Fasting?

Can I have an Americano while intermittent fasting?

Yes, you can. An americano is a coffee type consisting of espresso shots diluted with hot water. It is black coffee, which means it contains no calories or significant amounts of macronutrients. Therefore, consuming an americano during your fasting window should not break your fast.

However, it’s important to note that adding any sweetener or creamer to your americano would break your fast as they contain calories and can stimulate insulin production. To maintain the benefits of intermittent fasting, it’s best to enjoy your Americano plain or with just a dash of unsweetened almond milk or cinnamon for flavoring.

Can I Drink An Americano While Fasting?

It’s possible to have an Americano without breaking your fast. An americano is a coffee made by adding hot water to espresso shots. Since it consists mainly of water and espresso, it contains few calories and no macronutrients.

As a result, an americano is considered a zero-calorie beverage, which means it won’t disrupt your fasting period. It’s important to note that the key to maintaining a fast while enjoying an Americano is consuming it plain or with minimal additions. Avoid adding sugar, cream, or other caloric ingredients that could break your fast.

How Does An Americano Impact Fasting?

When it comes to bloodwork and glucose tests, it’s important to understand how fasting can impact the accuracy of these tests.

Fasting before bloodwork is typically required to obtain accurate results for certain measurements such as cholesterol levels and liver function.

Similarly, fasting is necessary before a glucose test as it allows healthcare professionals to assess your body’s ability to regulate blood sugar levels.

Understanding the importance of fasting in these scenarios can help ensure the reliability of your test results.

For Bloodwork

Getting bloodwork done while fasting is common, but it’s important to consult your doctor about whether an Americano will break your fast. While black coffee is generally considered acceptable during fasting periods due to its minimal calorie content, it’s crucial to consider the specific requirements of your bloodwork and any potential impact the americano may have.

Here are some factors to discuss with your doctor:

  • The purpose of the bloodwork: Certain tests may require strict fasting, while others may allow for certain beverages.
  • Medications and supplements: Some medications or supplements should be taken with food, so fasting might not be necessary.
  • Personal health conditions: Conditions like diabetes or hypoglycemia may require special consideration when determining if an Americano breaks your fast.

For Glucose Test

Consult with your doctor about whether consuming anything other than water will affect the accuracy of your glucose test results.

While following your doctor’s advice is important, research suggests that consuming an americano before a glucose test may impact the results.

An americano is made by adding hot water to espresso, which contains caffeine and potentially small amounts of calories from the espresso shot. Caffeine has been shown to increase blood sugar levels in some individuals, which could interfere with the accuracy of the test.

Additionally, even small calorie intake can cause a rise in blood glucose levels.

To ensure accurate results for your glucose test, it is best to discuss any dietary restrictions or guidelines with your healthcare provider before taking the test.

Pros and Cons of Drinking Americanos During Fasting

Drinking an Americano can have benefits and drawbacks if you’re fasting. Here are a few things to consider:


  • Coffee can help suppress appetite, making sticking to your fasting routine easier.
  • The caffeine in an Americano can boost metabolism and increase fat burning during your fast.
  • Coffee is also known for its potential antioxidant and anti-inflammatory properties.


  • Adding cream or sugar to your Americano breaks the fast because it adds calories and stimulates insulin release.
  • Some people may experience digestive issues or increased heartburn due to the acidity of coffee on an empty stomach.
  • The diuretic effect of caffeine may lead to dehydration if you don’t drink enough water during your fast.


So, does an Americano break a fast? The answer is no, it doesn’t. As long as you consume this black coffee without any additives or sweeteners, it won’t have a significant impact on your fasting state.

In fact, the caffeine in an Americano can even help suppress appetite and boost metabolism during your fasting period. However, remember to stay hydrated and listen to your body’s needs.

So go ahead and enjoy your Americano guilt-free! After all, who doesn’t love a good cup of coffee to kickstart their day?

Mike Shaw

Mike is a fervent aficionado of all things coffee. His journey has taken him from the verdant coffee farms of South America to the vibrant coffeehouses of Europe and many places in between. Over the years, he's delved deep into the intricate tapestry of coffee, savoring, brewing, and analyzing myriad varieties. For Mike, coffee transcends its role as a morning energizer; it's a world waiting to be explored and cherished.