The article compares the glycemic index (GI) of amaranth with other gluten-free grains like rice, buckwheat, and corn. Amaranth has a higher GI compared to these grains, with values of 87 for amaranth grain, 101 for puffed amaranth kernels, and 97 for coarse granular amaranth flour. This is because amaranth starch is easily digestible due to its high amylopectin content and small starch granule size. While amaranth products can improve the diet of those with gluten intolerance, they should be consumed in moderation due to their high GI.