The Claim
There is a statistically significant interaction between sex and dietary fiber intake in relation to visceral fat volume, such that the association between dietary fiber intake and visceral fat volume differs between Japanese men and women.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In Japanese adults, the relationship between dietary fiber intake and visceral fat volume is different for men and women.
See the scientific wording
There is a statistically significant interaction between sex and dietary fiber intake in relation to visceral fat volume (P-interaction = 0.001), indicating that the association between fiber and abdominal fat differs meaningfully between Japanese men and women.
In men, dietary fiber is broken down by gut bacteria into short-chain fatty acids that signal the liver to reduce fat production and increase fat burning, leading to less belly fat. In women, hormonal differences block this signaling, so fiber does not change liver fat processing or belly fat levels.
What the research says
1 studyIn Japanese adults, eating more fiber is linked to less belly fat in men, but not in women — and this difference is real and statistically clear. The study proves the connection works differently for men and women.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.