Barkey found that settled Turkana men reported severe complaints and higher rates of infectious diseases than the nomads, including a significantly higher frequency of cold with cough, eye infection, and chest infection than the nomads. They also had higher body mass index. Comparing settled and nomadic Rendille children in Kenya and Nathan found that sedentary children under six years had significantly higher levels of malnutrition and anaemia than nomadic children.57 This was attributed to the consumption of three times more milk by the nomadic children. Indigenous peoples need to be made aware of the consequences of change in lifestyle and what they need to do to mitigate the negative effects.