Taking a supplement called epicatechin while doing four weeks of cycling doesn’t seem to change a muscle protein that controls growth — at least in regular gym-goers.

45

Pro

0

Against

Evidence from Studies

Supporting (1)

45

Community contributions welcome

45

(–)-Epicatechin Supplementation Inhibits Aerobic Adaptations to Cycling Exercise in Humans

Randomized Controlled Trial

Human

2018

The study looked at whether cycling plus a supplement called (–)-epicatechin changes a muscle protein regulator called myostatin, and found no change — just like the claim says.

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.

Source Study

(–)-Epicatechin Supplementation Inhibits Aerobic Adaptations to Cycling Exercise in Humans

Score: 45

DOI: 10.3389/fnut.2018.00132

Similar Assertions

If you're a regular exerciser doing cycling, taking 200 mg of a compound called epicatechin every day might stop your muscles from building up a key energy-related protein that usually goes up with training—while people on a fake pill actually see an increase.

45

0

76%

Taking 200 mg of a compound called (–)-epicatechin every day for a month doesn’t help boost short-burst cycling performance more than a placebo in regular exercisers.

45

0

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If you're a regular exerciser doing cycling, taking a supplement called (–)-epicatechin every day might actually stop you from getting fitter, while people taking a fake pill (placebo) do get fitter over 4 weeks.

45

0

72%