The UN food agency has made an urgent appeal for $140m (€102m) in food aid for more than 5m Zimbabweans facing severe hunger.
The World Food Programme warned that without additional contributions, it would run out of stocks in January.
It says that millions of Zimbabweans have already run out of food or are surviving on just one meal a day.
Many hungry families are reportedly exchanging precious livestock for buckets of maize or eating wild foods to survive.
WFP currently faces a shortfall of over 145,000 metric tonnes of food. It has received almost $175m (€128m) in donations so far this year.
The WFP estimated recently that 83% of Zimbabweans are living on less than $2 a day and that 45% of the total population is malnourished.
Once hailed as a model economy and a regional breadbasket, Zimbabwe's fortunes have nosedived since 2000 when President Robert Mugabe seized white-owned farms and handed them over to landless black Zimbabweans, often with no farming skills.
State media said Thursday that inflation had reached 231 million percent, the highest in the world.
