If you're new to lifting weights, things like how much you eat, how much protein you get, how old you are, or your BMI don’t really help predict how much muscle you’ll gain in the first few months.

42

Pro

0

Against

Evidence from Studies

Supporting (1)

42

Community contributions welcome

42

Resistance training-induced appendicular lean tissue mass changes are largely unrelated to pre-training bone characteristics in a larger cohort of untrained adults

Cohort Study

Human

2025

The study looked at how muscle mass changes after 10–12 weeks of weight training and found that things like age, diet, and how much people trained don’t strongly predict who gains more muscle—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

Resistance training-induced appendicular lean tissue mass changes are largely unrelated to pre-training bone characteristics in a larger cohort of untrained adults

Score: 42

DOI: 10.3389/fphys.2025.1681719

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