Does Milk Break Intermittent Fasting?

Written by Andrew Brewer. ⚕️Reviewed and fact checked by our medical team.

Does Milk Break Intermittent Fasting

While intermittent fasting, we all search for that splash of flavor to help distract our minds from hunger or cravings. Some of us chew gum, some of us drink coffee and tea. No matter your vice, that splash of flavor while intermittent fasting can be tricky. It’s easy to accidentally break your fast, just because you wanted something more than just water.

While plain coffee and tea are totally acceptable to have while fasting, they can be difficult to swallow on their own. Black coffee is notoriously bitter, and so milk and creamer are a person’s best friend in the morning. But what about while intermittent fasting? Is it okay to add a bit of milk to your coffee to wake you up in the morning or should you keep the coffee plain?

We’ll take a close look at what milk can do to your system to see whether or not it’s a good idea to have. From the break down of milk to the way it plays with your system, we’re looking at all of the details so that you can make an informed decision in the mornings.

Key Takeaways

  • Adding a small amount of low-fat milk to your coffee during intermittent fasting should not break your fast or trigger an insulin response, as it is low in nutrients that can break a fast.
  • However, too much milk or drinking higher fat percentage milk could push the limits of your system and break your fast.
  • Drinking coffee with a splash of milk could help curb hunger and make intermittent fasting easier, but it’s important to be mindful of the amount of milk you’re adding to your coffee.
  • Milk is a transitional beverage that could be a gentle introduction for your body when it comes time to start eating again.
  • It’s essential to be aware of your body’s response to milk during intermittent fasting and make an informed decision about whether or not to add it to your coffee.

Break Down of Milk

It might be surprising, but milk is relatively low in nutrients that can break your fast. One teaspoon of 1% milk contains only 0.1 grams of fat, 2 milligrams of sodium, 0 grams of sugar, and 0 grams of protein. As you get higher in milk fat percentages, these numbers will begin to double and even triple, but if you’re sticking with the low-fat options, milk should be totally fine to add into your coffee.

None of these numbers are enough to break your fast as they won’t be enough to trigger your insulin production response or pass the threshold of ketosis. However, if you compound the milk with, you could surpass the insulin response threshold. Once your insulin production is triggered, your body will stop burning fat for fuel and your intermittent fasting progress will be halted.

Too Much Milk Will Break Your Fast

As with all things, too much can lead to some negative side effects. Don’t overdo it with the amount of milk you add to your coffee, otherwise, you could find yourself triggering insulin production and breaking your fast. A splash of milk should be fine to add to your coffee, but once you add too much, you’re pushing the limits of your system.

Even upping the type of milk you’re drinking could lead to you breaking your fast. Drinking 1% should be fine in most cases, but 2% will limit you on how much you can drink. Drinking whole milk might break your fast immediately due to the amount of fat in the drink. Be careful when drinking milk during intermittent fasting as it’s easy to accidentally overdo it.

A Splash of Milk to Curb Hunger

There are some benefits to drinking milk while intermittent fasting as long as you’re careful with it. Adding a splash of milk to your coffee could give your body the small dose of fat it needs to handle the remaining hours of your fast. By introducing a tiny amount of fat to your body, you could easily curb hunger and drive away cravings making the rest of the intermittent fast easy.

Drinking coffee with a splash of milk could also be a fantastic transitional beverage for the end of your intermittent fasting window. When it comes time to start eating again, you don’t want to shock your system by introducing a ton of food at once. Starting with a cup of coffee and some milk could be the gentle introduction your body needs to start eating again.

Don’t forget to check our recommended intermittent fasting apps to make your intermittent fasting journey easier.


  • Does milk break intermittent fasting?

Milk can break intermittent fasting if consumed sufficiently as it contains calories and nutrients that can stimulate insulin response and disrupt the metabolic state of fasting. However, small amounts of milk or creamer in coffee or tea may have little impact on fasting.

  • What are the effects of milk on fasting?

Milk can breakfasting by stimulating insulin response and reducing the body’s reliance on fat energy stores. It can also increase blood sugar levels and negate some of the benefits of fasting, such as autophagy and ketosis.

  • Can I drink milk during intermittent fasting?

Drinking milk during intermittent fasting is not recommended as it can break the fast and interfere with the metabolic state of fasting. However, small amounts of milk or creamer in coffee or tea may be acceptable depending on the type of fasting protocol and personal goals.

  • What about plant-based milk alternatives?

Plant-based milk alternatives such as almond milk, soy milk, and coconut milk are generally lower in calories and carbohydrates compared to cow’s milk. However, they still contain calories and nutrients that can break fasting if consumed in large amounts. It is recommended to choose unsweetened and low-calorie options and consume them in moderation.

  • What if I take my supplements with milk?

Taking supplements with milk can breakfasting as it can stimulate insulin response and disrupt the metabolic state of fasting. It is recommended to take supplements with water or other non-caloric beverages during the fasting period.

  • Can I consume milk during my feeding window?

Consuming milk during the feeding window is acceptable if it fits within the daily calorie and nutrient goals. However, it is recommended to choose low-fat or non-fat milk options and consume them in moderation to avoid excess calorie intake.

Andrew Brewer

Andrew Brewer

Andrew Brewer started to give people the guidance that he never received when he was first starting. His goal is to make your goals achievable and to offer you only the best fasting apps that the internet has to offer. You're not on your own - Andrew and the entire family of reviewers at are here with you every step of the way!