China has stepped up measures to reduce food waste, after President Xi called the amount wasted "shocking and distressing".
The "Clean Plate Campaign" comes after Mr Xi highlighted that Covid-19 had "sounded the alarm" on food waste.
It also comes after weeks of mass flooding across southern China which left farms wrecked and ruined tons of produce.
Following Mr Xi's message, the Wuhan Catering Industry Association urged restaurants in the city to limit the number of dishes served to diners - implementing a system where groups must order one dish less than the number of diners.
So under this system dubbed "N-1", a group of 10 people can only order 9 dishes.
But it's likely the system will take time to get adjusting to, in a country where it is seen as polite to order more than the amount needed.
In a group setting, empty plates are sometimes seen as a sign of a bad host - signifying that an insufficient amount of food was ordered for guests.
The "N-1" idea faced some criticism online, with some pointing out that it was "too rigid".
"What if one person goes to a restaurant alone? How many dishes can he order? Zero?" asked one person on microblogging site Weibo.
Others said that most restaurant diners did not normally waste much food, pointing instead to extravagant banquets thrown by officials.
It's not the first time China has launched an anti food waste campaign. In 2013, the "Operation Empty Plate" campaign was launched - though that targeted extravagant feasts and reception held by officials, rather than putting the onus on the public.