The Claim

The burden of colorectal cancer attributable to low-fiber diets exhibits a U-shaped relationship with the sociodemographic index, with the highest age-standardized mortality rates observed in middle-income countries and lower rates in both low- and high-income countries.

Source: Global, regional, and national burden of disease associated with low-fiber dietary patterns for colorectal cancer from 1990 to 2021: A systematic analysis for the global burden of disease 2021

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
39score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Colorectal cancer deaths linked to low-fiber diets are highest in middle-income countries and lower in both poorer and wealthier countries, suggesting that economic development and dietary changes interact in complex ways with cancer risk.

See the scientific wording

The burden of colorectal cancer attributable to low-fiber diets follows a U-shaped relationship with sociodemographic index, with the highest age-standardized mortality rates occurring in middle-income countries and lower rates in both low- and high-income countries, suggesting complex interactions between economic development, dietary transition, and cancer risk.

What the research says

1 study
  1. Study: Global, regional, and national burden of disease associated with low-fiber dietary patterns for colorectal cancer from 1990 to 2021: A systematic analysis for the global burden of disease 2021

    This study found that countries in the middle of economic development have the most colorectal cancer from low-fiber diets, while poorer and richer countries have less—suggesting that as countries get richer, people eat worse before they learn to eat healthier.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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