The article provides information about the impact of nutrition on human health and the formation of nutritional diseases. Irrational nutrition is typical for the population of Russia, in particular of the Smolensk region. The article provides an overview of the functional properties of flax seeds and linseed oil in terms of fatty acid composition and functional properties. The data of studies on the determination of fatty acid composition in samples enriched with flax seeds, flaxseed oil compared to the control sample (initial minced turkey breast meat) are presented. The introduction of functional ingredients improved the fatty acid composition and increased the efficiency of enriched semi-finished products. The positive effect of oilseed flax and flaxseed oil on the organoleptic characteristics of the developed chopped semi-finished products was noted. Improving the Omega-3: Omega-6 ratio in the developed semi-finished products allows to consider enriched semi-finished products as a functional food product.