The committee, chaired by MP Misheck Marava, told Parliament that prisoners were also lacking basic necessities such as clothing, toothbrushes, toothpaste, blankets, towels, bathing and washing soap among other things.
In some cases prison officials at Khami and Binga prisons had resorted to using personal funds to assist in the running of prisons.
The Parliamentary portfolio committee toured Khami, Mlondolozi, Binga and Hwange Prisons in Matebeleland North province.
Over crowdedness was still a problem in prisons, particularly at Khami Maximum prison which was holding about more than 100 prisoners more than its capacity of 1472. The committee recommended deporting foreign prisoners to their homes.
The committee also recommended improvement in treatment of prisoners living with HIV/AIDS.
A prison guard at one of the prisons was cautioned for wearing political party regalia while addressing prisoners.