Every morning in a sweltering tent in Gaza, Abeer and Fadi Sobh wake to the same grim task: finding enough food to keep their six children alive.

The couple has three options: Maybe a charity kitchen will be open and they can get a pot of watery lentils. Or they can try jostling through crowds to get some flour from a passing aid truck. The last resort is begging.

If those all fail, they simply don't eat. It happens more and more these days, as hunger saps their energy, strength and hope.

The predicament of the Sobhs, who live in a seaside refugee camp west of Gaza City after being displaced multiple times, is the same for families throughout the war-ravaged territory.

Hunger has grown throughout the past 22 months of war because of aid restrictions, humanitarian workers say. But food experts warned earlier this week the "worst-case scenario of famine is currently playing out in Gaza."