1. A method for warning a user with a diabetes management device that the measurement of glucose in the user's blood before and after eating has exceeded a predetermined differential threshold, including: collecting, using a diabetes management device, a plurality of (N) pairs of concentration measurement results glucose before and after meals for a specific meal； calculating, using the microprocessor of a diabetes control device, a set of differential values (D) based on the difference between the collected m many pairs of glucose concentrations before and after a meal for a specific meal； determining, using a microprocessor, that the number N of pairs of measurement results before and after a meal for a particular meal is equal to or greater than the calculated sample size (m)； detection, using at least one statistical test, exceeding a threshold value (Δ) with an acceptable level of confidence； and after detecting an excess of the threshold value (Δ) with an acceptable level of confidence, a message is sent to the user that for a particular meal, the differential value D for the number of pairs of glucose measurement results exceeded the threshold value (Δ) .2. The method according to claim 1, wherein the determination comprises calculating the calculated sample size m according to an equation of the form: where m is the size of the sample size to achieve acceptable reliability； K is a constant obtained from the following equation: where z values correspond to random variables with normal distribution from statistical tables taken for1. Способ предупреждения пользователя с помощью устройства управления диабетом о том, что данные измерения уровня глюкозы в крови пользователя до и после приема пищи превысили заранее заданный дифференциальный порог, включающий:сбор, с использованием устройства управления диабетом, множества (N) пар результатов измерения концентрации глюкозы до и после приема пищи для конкретного приема пищи；расчет, с использованием микропроцессора у
