Can You Drink Alcohol During Intermittent Fasting? The Facts

Alcohol and fasting don't always mix well. Here's what the research says about how drinking affects fat burning, appetite, and the benefits of fasting.

Can You Drink Alcohol During Intermittent Fasting? The Facts

Key Takeaways

  • Alcohol can reduce your body's ability to burn fat for up to five hours after consumption, slowing weight loss progress during fasting.
  • At seven calories per gram, alcohol is calorie-dense and can easily add 100+ calories per drink to your daily intake.
  • Drinking alcohol can increase hunger and lead to overeating, working against the goals of a fasting protocol.
  • Frequent heavy drinking can promote inflammation and overwhelm the liver, counteracting many of fasting's health benefits.
  • Small amounts of alcohol, like one to two standard drinks, can be enjoyed during your eating window without completely derailing your fast.
  • Lower-calorie options like red wine or hard spirits are better choices than sugary cocktails when drinking while fasting.

Fasting is one of the most popular health trends on the planet. Not only can it help you lose weight, but research shows that fasting has been linked to many other health benefits like reducing inflammation and improving heart health. However, a lot of people wonder if alcohol affects fasting at all? This article explains what you need to know about alcohol and fasting.

How Alcohol Affects Fasting

If you use fasting as a way to lose weight, alcohol can slow it down. For starters, studies show that alcohol can reduce your body's ability to burn fat for as long as five hours after eating. Also, alcohol can make you hungrier and possibly overeat.12

Alcohol isn't calorie-free—it's one of the more calorie-dense macronutrients. One gram of alcohol has seven calories, so a standard drink can easily add more than 100 calories to your daily intake. If you have a few drinks here and there, it can quickly add up.3

Not to mention, drinking too much alcohol frequently can promote inflammation, overwhelm your liver, and counter many health benefits from fasting.456

Summary

If you're using fasting to lose weight, alcohol may slow your progress. Not to mention, drinking too much alcohol can increase inflammation and negatively affect your health.

It's Important to Note: Drinking Alcohol Isn't Entirely Bad

In fact, small amounts of alcohol—especially a glass or two of red wine—can be healthy. If you want to drink alcohol while you're fasting, you should only drink it during your eating window and limit your intake to one to two standard drinks per day.

Although fasting doesn't have strict calorie rules, it's best to choose lower-calorie options like red wine or hard spirits, and avoid sugary mixers that add unnecessary calories.

Summary

If you'd like to drink alcohol while fasting, limit yourself to one to two standard drinks per day, and enjoy them during your eating period rather than outside of it.

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References

  1. Siler SQ, Neese RA, Hellerstein MK. De novo lipogenesis, lipid kinetics, and whole-body lipid balances after acute alcohol consumption. Am J Clin Nutr. 1999;70(5):928–936. Available from: https://pubmed.ncbi.nlm.nih.gov/12499328/
  2. Yeomans MR. Short term effects of alcohol on appetite in humans. Effects of Nutrition on Appetite. 2010. Available from: https://pubmed.ncbi.nlm.nih.gov/28072397/
  3. Traversy G, Chaput JP. Alcohol consumption and obesity: an update. Curr Obes Rep. 2015;4(1):122–130. Available from: https://pubmed.ncbi.nlm.nih.gov/25741455/
  4. Romeo J, Wärnberg J, Nova E, Díaz LE, Gómez-Martínez S, Marcos A. Moderate alcohol consumption and the immune system: a review. Br J Nutr. 2007;98(S1). Available from: https://pubmed.ncbi.nlm.nih.gov/18216378/
  5. Szabo G, Saha B. Alcohol's effect on host defense. Alcohol Res. 2015;37(2):159–170. Available from: https://pubmed.ncbi.nlm.nih.gov/28988571/
  6. Gao B, Bataller R. Alcoholic liver disease: pathogenesis and new therapeutic targets. Gastroenterology. 2011;141(5):1572–1585. Available from: https://pubmed.ncbi.nlm.nih.gov/25961601/