• Essential and toxic minerals in leafy vegetables from open air and supermarkets in Nairobi 

      Nambafu, Godfrey N.; Adam, Anna; Onyuka, Enos; Mwonga, Samuel; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Engels, Christof (Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (ADTI), 2015-09)
      Deficiency of macroelements such as calcium (Ca) and microelements like zinc (Zn) is widespread in sub-Saharan Africa, particularly among the poor, for which diets are strongly based on staple crops like maize and sorghum. ...
    • Iron concentrations in roots and edible organs of African indigenous vegetable species 

      Eckhardt, Ulrich; Beer, Julius; Bessler, Holger; Nambafu, Godfrey N.; Onyuka, Enos; Andika, Darius O.; Gweyi-Onyango, Joseph Patrick; Engels, Christof (Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences (ADTI),, 2015-09)
      Iron (Fe) deficiency is among the 10 leading human health risks causing “hidden hunger” in sub- Saharan Africa. Iron concentrations and bioavailability are often higher in leafy vegetables than in staple crops like maize ...