Konzo: From Poverty, Cassava, and Cyanogen Intake to Toxico-Nutritional Neurological Disease
2011

Konzo: A Neurological Disease Linked to Cassava Consumption

publication Evidence: moderate

Author Information

Author(s): Nzwalo Hipólito, Cliff Julie

Hypothesis

Is there a link between high dietary cyanogen consumption from cassava and the occurrence of konzo?

Conclusion

Konzo is a serious neurological condition that is often underestimated and linked to high cyanogen intake from improperly processed cassava.

Supporting Evidence

  • Konzo is associated with high dietary cyanogen consumption from insufficiently processed cassava.
  • Epidemics of konzo have been reported in many cassava-consuming areas in rural Africa.
  • Unofficial reports suggest that the number of konzo cases is significantly higher than reported.
  • Children and women are more affected by konzo than adult males.
  • Immediate interventions, such as dietary diversification and detoxification methods, are essential to prevent konzo.

Takeaway

Konzo is a disease that makes it hard for people to walk because of eating too much bad cassava. This happens when the cassava isn't cooked properly.

Methodology

The study is a non-systematic review of konzo using published and unpublished sources, including literature searches and reference reviews.

Potential Biases

Cultural beliefs may lead to misdiagnosis and underreporting of konzo cases.

Limitations

The number of konzo cases is likely underestimated due to underreporting and misdiagnosis.

Participant Demographics

Konzo primarily affects the poorest rural populations in Africa, particularly women and children.

Digital Object Identifier (DOI)

10.1371/journal.pntd.0001051

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