In Summary
  • The scientists found out that consuming a quarter chicken from the area exposes someone to fluoride levels as high as 14 milligrams, which is more than seven times the allowable daily intake.
  • The research focused on poultry, where they collected chicken feathers from representative poultry farms from Nakuru County which they analysed for fluoride content.

A group of researchers that has been investigating why there are high levels of fluoride in the Rift Valley has found high contents of the mineral in chicken feathers.

The substance that weakens bones, was found in chicken in high quantities. The scientists found out that consuming a quarter chicken from the area exposes someone to fluoride levels as high as 14 milligrams, which is more than seven times the allowable daily intake.

The researchers, under the Flowered project funded by the European Union, started the study in 2016 with the aim of finding solution to fluoride contamination in water, soils and food in some African Rift Valley countries which include Ethiopia, Kenya and Tanzania.

In Kenya, they have been focusing on Nakuru County where they said the effects of fluoride have been felt most in the Kenyan Rift Valley.

SAMPLE ANALYSIS

Their latest report is titled Levels of Fluoride in Various Samples and Occurrence of Dental Fluorosis in Livestock in Nakuru County.

The research focused on poultry, where they collected chicken feathers from representative poultry farms from Nakuru County which they analysed for fluoride content.

One of the researchers was Dr Enos Wambu from the Department of Chemistry and Biochemistry in the University of Eldoret.

Dr Wambu said the water that is provided to the chickens for drinking and maize samples from the farms was also collected and analysed.

SURPRISING FINDINGS

In the samples of water used by the poultry, highest levels were found in areas around Lakes Nakuru and Elmentaita at the Rift Valley floor.

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