The effect of dietary supplements on the human body. Biologically active additives (dietary supplements) are compositions of natural or biologically active substances identical to natural ones, intended for direct intake with food, in order to enrich the diet with individual food or biologically active substances and their complexes. Eubiotics (Probiotics) Nutraceuticals include: Calcium, iron, phosphorus, potassium, magnesium, zinc, amino acids (valine, glycine, leucine, tryptophan). Parapharmaceuticals include: Medicinal plants, bee products, extracts from animal organs and tissues. Eubiotics include: Bacterial preparations that regulate the microflora of the intestine and oral cavity. The function of dietary supplements Preparatory Restorative Prophylactically Wellness Application In a normal state of human health. In the event of a pre-painful condition. In case of illness. Conclusion 1. Dietary supplements are compositions of biologically active substances intended for direct intake with food. 2. Dietary supplements basically benefit the body by providing it with all the necessary substances for normal existence. Thanks for your attention!