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Topicality.The carried out monitoring of the health state and nutritional status of Ukrainians indicates a considerable lack of valuable essential trace elements. Solving this urgent problem is possible by introducing into the population’s diet dishes with an increased iodine content. It is advisable to elaborate preventive foods in the direction of increasing the iodine digestibility and strengthening its preventive effect. It is achieved by simultaneous intake of iodine and its synergist selenium in the human body by the use of supplements from raw materials with a balanced content of this trace element pair. The aim of the article.The aim of the study is to substantiate the production of new dietary feijoa supplements with increased iodine and selenium content for the development of preventive sweet dishes technology. Research methods.The following research methods were used in this study: analytical and standard ones were applied for the determination of iodine content, sensory profile analysis. Results.On the basis of comparative analysis of food raw materials for the iodine and selenium content, as well as the degree of compliance of these microelements with the norms of the adult’s daily physiological needs, the perspective of using feijoa fruits for the development of supplements with an increased iodine and selenium content for the technology of sweet dishes was shown. The research highlighted that new supplements, such as feijoa puree with sugar and candied feijoa, are characterized by a high content of iodine (60.1 and 52.6 μg/100 g, accordingly), and satisfy the daily human need for iodine by 40 and 35%, respectively, possess high organoleptic indicators that make it possible to recommend them as dietary supplements in the sweet dishes technology. Conclusions and discussion.The scientific novelty of the study consists in the grounding the choice of raw materials with an increased iodine and selenium content for the dietary supplements production. Iodine content in new dietary feijoa supplements was determined. Sensory characteristics of the aroma of new feijoa supplements were studied for the first time, according to the developed descriptors. The technology of the sweet dish with a high content of iodine and selenium was developed – “Granola with feijoa candied fruit”. The practical significance of obtained results is revealed in the possibility of expanding the range of dishes aimed at preventing the deficiency of these valuable microelements for the restaurant business establishments.