"The composition of UN World Food Programme food basket varies from country to country and region to region, depending upon the eating habits of the people WFP feeds.
In countries where rice is a stable part of the diet, World Food Programme provides, on average about 400 grams of rice per person, per day (for families, including children and adults). That is intended for two meals that include other ingredients to ensure a minimum of 2,100 kilocalories per day.
There are about 48 grains of rice in a gram."
That equates to: 9,600 grains per person per meal
19,200 grains per peson per day