Even though people slept less after eating a high-protein breakfast, they didn't wake up more often or have worse sleep quality — their sleep was just shorter.

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Evidence from Studies

Supporting (1)

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A pilot study assessing whether the consumption of a protein‐rich breakfast improves appetite control, eating behavior, and sleep quality compared to skipping breakfast in healthy young professionals

Randomized Controlled Trial

Human

People who ate a high-protein breakfast slept a bit less, but their sleep was just as restful—so sleeping less didn’t mean they slept worse.

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No contradicting evidence found

Source Study

A pilot study assessing whether the consumption of a protein‐rich breakfast improves appetite control, eating behavior, and sleep quality compared to skipping breakfast in healthy young professionals

Score: 46

DOI: 10.1096/fasebj.31.1_supplement.443.1

Similar Assertions

Even though people slept less after eating a high-protein breakfast, their sleep was just as deep and uninterrupted — they just went to bed and woke up earlier.

94%

Eating a high-protein breakfast made people sleep less, but they felt like they slept better and fell asleep faster — even though their actual sleep quality didn’t change.

92%

People who eat a high-protein breakfast sleep about 36 minutes less per night than when they skip breakfast, but the quality of their sleep doesn't change.

88%

People who eat a high-protein breakfast might feel like they fell asleep faster and slept better, but the numbers aren't strong enough to say for sure.

87%

These results only apply to healthy, young, professional adults — we don’t know if they’d work for older people, shift workers, or those with health problems.

76%