The 22 are reported to have consumed meat sold by the roadside, falling victim to what many suspect is yet another cholera outbreak.
17 people were been admitted at Ngong Hospital after eating the contaminated food, and another man has been admitted at Kenyatta National Hospital.
3 men and one woman have lost their lives in the tragic incident.
According to Ngong Deputy County Commissioner, Kahiro Mwangi, medics are still conducting a post-mortem on bodies of the deceased to establish whether it is cholera or food poisoning.