Do women who breastfeed get more fatigued than women who use formula?

Last updated: February 20, 2022
The single study in this list that examines this question found that the answer is no. A single study is often not sufficient to draw a conclusion so we encourage you to refer to this study merely as food for thought.
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Chart summary of 1 study examining this question

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Total studies in list: 1
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Fatigue and Breastfeeding: An Inevitable Partnership?
"Postpartum fatigue is a normal condition that most women experience. Breastfeeding is often associated in women's minds as contributing to the feeling of overall perceived fatigue, and many women indicate that they have ceased breastfeeding because of fatigue. However, the relationship between feeding choice and perceived fatigue has never been established. Two hundred and fifty-three women participated in a study examining whether perceived fatigue differed for bottle-feeding and breastfeeding women at 3 different times during the postpartum period (2-4 days, 6 weeks, and 12 weeks postpartum). Results showed no significant differences for these 2 groups, suggesting that perceived fatigue during the postpartum period is not dependent on feeding choice. Additional analyses examining other variables with a potential effect were nonsignificant. Because perceived physical fatigue does not appear to be dependent on feeding choice, women should be prepared for the feeling of perceived fatigue during the postpartum period while at the same time be reassured that feeding choice is not correlated."
Stacey Callahan
2006 Journal of Human Lactation