Locations:
Search IconSearch
September 30, 2020/Diet, Food & Fitness/Nutrition

Can You Do Intermittent Fasting While Breastfeeding?

The short answer from a registered dietitian

woman and newborn baby

Q: I recently had a baby and would like to start losing some of the baby weight. Is it safe to try intermittent fasting while I am still breastfeeding?

A: Women who are breastfeeding have a need for more calories because those calories are being used to provide nutrients to the baby. If you’re low on calories, it could affect your milk supply and energy level – both of which are not good for nursing moms.

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

So typically for women who are breastfeeding, I do not advise intermittent fasting.

However, in the later stages of breastfeeding, say if you’re feeding in the morning and evening and you’re not the primary source of your baby’s nutrition anymore, then you could probably incorporate some fasting towards the very tail end.

But I certainly do not recommend intermittent fasting during the very active breastfeeding period where you’re providing your baby’s main source of nutrition.

Until you’re done breastfeeding, your safest bet is to focus on a healthy diet and exercise plan.

– Registered dietitian Julia Zumpano, RD.

Learn more about our editorial process.

Related Articles

oatmeal cookies with chunk of chocolate on top
Do Lactation Cookies Work To Improve Milk Production?

If you’re not getting enough calories, these cookies may help — but a balanced diet is a better way to increase milk supply

Caregiver holding baby and picking up bottle of milk
July 18, 2024/Children's Health
A How-To Guide on Hand-Expressing Breast Milk

Hand expression follows a specific rhythmic pattern to trigger a breast milk let-down

Smiling female looking down at baby while the baby breast feeds
Relactation 101: How To Induce Lactation After You’ve Stopped

Relactation can reproduce breast milk after two to four weeks

Clock face with utensil hands, indicating fast time, and water bottle pouring in background
July 16, 2024/Nutrition
Dry Fasting: Why You Should Avoid It

This no-water trend increases your risk of dehydration, as well as other issues

Plate with beef, eggs, avocado, leafy greens and apricots, with multi-grain bread, walnuts, sweet potato and yogurt
July 11, 2024/Women's Health
What To Eat and Foods To Avoid While Breastfeeding

A well-balanced diet of whole grains, salmon, leafy greens and more can help maintain energy and increase milk supply

Female breast feeding baby
Can You Drink Alcohol While Breastfeeding?

An occasional drink is OK, and you can safely nurse your baby after the alcohol has left your breast milk

Woman breastfeeding baby on couch
How Long To Breastfeed: What the Guidelines Say and What To Consider

Recommendations encourage breast milk exclusively for baby’s first six months and continuing to provide human milk until age 2 and beyond

Hand holding glucose measurement device, with bottle of water in background at night
Are Religious Fasts Safe for People With Diabetes?

Planning ahead, checking in with your care team and being vigilant about blood sugar monitoring can help ensure a safe fast

Trending Topics

Female and friend jogging outside
How To Increase Your Metabolism for Weight Loss

Focus on your body’s metabolic set point by eating healthy foods, making exercise a part of your routine and reducing stress

stovetop with stainless steel cookware and glassware
5 Ways Forever Chemicals (PFAS) May Affect Your Health

PFAS chemicals may make life easier — but they aren’t always so easy on the human body

jar of rice water and brush, with rice scattered around table
Could Rice Water Be the Secret To Healthier Hair?

While there’s little risk in trying this hair care treatment, there isn’t much science to back up the claims

Ad