According to Sivan Weitzman, a spokeswoman for the Israeli Prison Service, the two detainees are in "a stable condition" but are refusing medical treatment.
According to the Israeli campaign group Physicians for Human Rights both men are taking in only water and refusing medical treatment or food supplements, such as vitamins and minerals.
In this week's Scrubbing Up Nuala Close, lead cancer nurse, at Barts and The London NHS Trust warns that some patients are putting their lives at risk by needlessly neglecting their health and mistakenly refusing or delaying their treatment until after Ramadan.