The article studies the determination of the presence of Cs-137 and Sr-90 radionuclides in food with a radiometric method based on beta radiation. The presence of cesium137 and strontium-90 radionuclides in food was experimentally determined. The objects of research were milk, meat, fish, potatoes, carrots, radishes, cabbage, radishes, onions, eggplant, watermelon, and pumpkin. An increased amount of Cs-137 was revealed in fish, cabbage, and watermelon.