Virtual consumption of magnesium with food by an unorganized population of men aged 20-59 (780 people) living in Kiev has been studied. Insufficient magnesium content in the nutrition rations of the population (10% lower than the recommended values) has been observed. A correlation between the low magnesium consumption with food and prevalence of the ischemic heart disease, such risk factors of it, as hyperlipoproteinemia, arterial hypertension, redundant body weight.