Egypt suffers in recent years from severe scarcity in its water resources due to the factors that play adevastating role for water security in the country, so the research aimed to estimate the hypothetical water loss by food groups such as cereals, dry legumes, fresh vegetables, fruits, sugary crops, red meat, poultry meat and fresh fish during the average period (2011-2020) through the difference between available for consumption (production + net imports - change in stock) and aspects of demand for hypothetical water (food + manufacturing + other uses such as seeds, fodder and waste), then dividing that period into a first period (2011-2015) and a second period (2016-2020) and comparing them to estimate the evolution in the amount of hypothetical water loss, whether by increase or decrease. the study concluded: The amount of available water during the average period (2010-2020) was estimated at about 76.29 billion m3, and the amount of water used was estimated at about 75.75 billion m3, and the average per capita share of water was 842.29 m3. It was found from the amount of hypothetical water loss in the food groups, in order from largest to smallest, that the group of cereals had the largest share, as the amount of virtual water loss amounted to about 1.49 billion m3. then the group of vegetables, which was estimated at about 797.27 million m3, and the group of fruits, which amounted to about 521.99 million m3, then the sugar crops, which were estimated at about 73.45 million m3, and the group of dry legumes, which amounted to about 62.28 million m3, while red meat, poultry meat, or fish did not achieve any loss in the amount of hypothetical water during the study period. Also it was found from the estimation of the amount of hypothetical water loss for different crops within each food group during the study period that, Wheat crop has the highest amount of hypothetical water loss in the grain group , soybeans in the legume group, tomatoes in the vegetables group, citrus fruits in the fruit group, and sugar cane in the sugar crops group.