The Claim
In Japanese men aged 40–89, higher total dietary fiber intake is associated with lower visceral fat volume, with individuals in the highest quartile of intake exhibiting a mean visceral fat volume of 3517 cm³ compared to 3740 cm³ in the lowest quartile.
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.
Japanese men aged 40–89 who consume more dietary fiber have less visceral fat than those who consume less fiber, based on measured volumes of abdominal fat.
See the scientific wording
In Japanese men aged 40–89, higher total dietary fiber intake is associated with lower visceral fat volume, with those in the highest quartile consuming 3517 cm³ compared to 3740 cm³ in the lowest quartile, suggesting fiber intake may be a relevant factor in abdominal fat distribution in this population.
When fiber is eaten, gut bacteria break it down and produce chemicals that signal the gut to release hormones. These hormones tell the liver to make less fat and reduce fat storage around the organs.
What the research says
1 studyIn Japanese men between 40 and 89, eating more fiber—especially from beans, veggies, and fruit—is linked to having less fat around their organs, with the highest fiber eaters having about 223 cm³ less than the lowest. This pattern wasn’t seen in 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.