correlational
Analysis v1
Strong Support
If you're doing a really long, intense workout with lots of sets, or working out twice in one day, eating carbs might help you lift more—but only if you were hungry or hadn't eaten, not if you're eating the same number of calories from other foods.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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The Effect of Carbohydrate Intake on Strength and Resistance Training Performance: A Systematic Review
Systematic Review
Human
2022 Feb 18The study found that eating carbs before a super long or twice-a-day workout can help you lift heavier—but only if you hadn’t eaten anything before. If you ate the same number of calories from other foods, carbs didn’t help.
Contradicting (0)
0
Community contributions welcome
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.