Pica is an eating disorder which leads to cravings of non-food items, and it affects many pregnant women.
Ugandan Brenda Naggita has the condition, and while pregnant she likes to eat rocks to help with her nausea.
Pica can also affect children and people with mental disorders.
READ ALSO: Tanzanian President shocked by pregnancy rates in schools
Produced by BBC Life Clinic.
 Source: BBC