If you feed adult rats protein from sources like whey or eggs instead of wheat or soy, their muscles grow bigger and repair faster after eating, especially after the first meal of the day.

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Evidence from Studies

Supporting (1)

9

Community contributions welcome

9

Leucine Guides Meal Distribution of Dietary Protein for Muscle Protein Synthesis and Mass

Cohort Study

Animal

The study gave rats different kinds of protein for 11 weeks and found that those eating whey and egg (which have more leucine) built more muscle than those eating wheat and soy (which have less leucine), especially after their morning meal.

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Source Study

Leucine Guides Meal Distribution of Dietary Protein for Muscle Protein Synthesis and Mass

Score: 9

DOI: 10.1096/fasebj.29.1_supplement.129.3

Similar Assertions

If you give a rat the same amount of protein in three meals instead of saving most of it for dinner, it builds more muscle over 11 weeks.

9

0

82%

In adult rats, how well their muscles use essential amino acids to build protein depends on whether they get their protein spread out through the day or all at once, and also on how much leucine is in the food they eat.

9

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79%

When rats ate a larger dose of regular whey protein, their blood had more leucine than when they ate the same amount of hydrolyzed whey protein an hour later.

13

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76%

For rats, the best time for muscle protein building after eating regular whey protein is about an hour later.

13

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74%

After swimming, rats that drank whey protein had more leucine inside their muscles than those drinking other proteins for up to 1.5 hours after eating.

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73%