The president of Russia warned that the sanctions will lead to a food crisis.
Western nations will have to print more money to buy supplies, which will cause food shortages in poorer countries, according to Putin.
Putin said in a meeting on developing food production that they will inevitably increase food shortages in the poorer regions of the world, spur new waves of migration, and drive food prices even higher.
Russia will not export food to countries that are hostile to it, suggested Putin.
Putin said that they would have to be more careful about food supplies abroad and that they would have to be careful about exports to hostile countries.
Russia will not supply its products and agricultural products to our enemies, as was threatened last week by the former Russian president and senior security official.
That measure would be in response to sanctions, Medvedev said in a message to his Telegram channel.
He said that they would only supply food and crops to their friends.
Russia and Ukraine are major suppliers of wheat and corn. According to an ING report, Russia is the largest exporter of wheat. Ukraine has 12% of wheat supplies and 17% of corn supplies.
The war in Ukraine is a bad time for the world according to a World Bank spokesman.
Poor and vulnerable people were already suffering from high inflation and rising food prices, caused by higher energy costs and trade restrictions.