The potential uses of amaranth (Amaranthus hypochondriacus) starch from the species grown in Poland were recognized by determining the basic physico- chemical properties and functionality in mayonnaise and glue systems. Rheological methods, scanning electron microscopy, and light microscopy were employed in the analysis of isolated starch. When used in low-fat mayonnaise formulas, the amaranth starch gave them excellent organoleptic qualities, but rather poor rheological stability. The amaranth starch also showed great use value as a major component of corrugated-board glues.