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Strong Support

Right after a super-hard workout, eating lots of carbs makes your muscles start rebuilding their first energy store (proglycogen) three times faster than if you eat fewer carbs.

37
Pro
0
Against

Evidence from Studies

Supporting (1)

37

Community contributions welcome

37

Dietary carbohydrate and postexercise synthesis of proglycogen and macroglycogen in human skeletal muscle.

Cohort Study
Human
1998 Aug

After intense exercise, men who ate mostly carbs rebuilt a specific type of muscle energy store three times faster than those who ate fewer carbs — and the study measured this directly.

Contradicting (0)

0

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Dietary carbohydrate and postexercise synthesis of proglycogen and macroglycogen in human skeletal muscle.

Score: 37
DOI: 10.1152/ajpendo.1998.275.2.E229

Similar Assertions

After a hard workout, your muscles keep making the big energy store only if you eat a lot of carbs — if you eat few carbs, that big store doesn’t grow at all over two days.

37
0
90%

After a really hard workout, eating a lot of carbs helps your muscles rebuild a special type of stored energy (macroglycogen) much better than eating fewer carbs.

37
0
89%

Between 4 and 24 hours after a hard workout, your muscles keep rebuilding their first energy store no matter how many carbs you eat, but the bigger energy store only grows if you eat lots of carbs.

37
0
89%

Right after a super-hard workout, only about 1 in 8 of your muscle’s energy stores is in the big storage form — but if you eat lots of carbs afterward, that big store grows to nearly half of all your muscle energy.

37
0
79%

After biking really hard and then eating a lot of carbs for a few days, your muscles store way more energy than they do after running hard and eating the same way.

51
0
77%