When young female rats eat more vitamin D3 in their food, they grow more muscle over 8 weeks, but their overall weight and fat don’t change.

14

Pro

0

Against

Evidence from Studies

Supporting (1)

14

Community contributions welcome

14

Lean body mass accretion is elevated in response to dietary vitamin D: A dose-response study in female weanling rats.

Randomized Controlled Trial

Animal

2019 Aug

Rats that ate more vitamin D3 gained more muscle over 8 weeks without getting heavier or fatter, exactly what 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

Lean body mass accretion is elevated in response to dietary vitamin D: A dose-response study in female weanling rats.

Score: 14

DOI: 10.1016/J.NUTRES.2019.07.004

Similar Assertions

When baby female rats get more vitamin D in their food, their body keeps more of a growth-related hormone called IGF-1 over 8 weeks, compared to rats getting less vitamin D.

14

0

81%

When baby female rats eat more vitamin D3 in their food, their blood levels of a vitamin D marker go up — and the more they eat, the higher it goes.

14

0

81%