Glycemic Index Of Grits. Oatmeal's glycemic index depends on how it's prepared. 1/4 cup grits = 144 calories & 1.8 grams fiber 1/4 cup oats = 77 calories & 2.0 grams fiber.
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Fermented corn grits had a lower glycemic index (65.4) compared to whole corn flour and grits (94 to 109),. Another tip is to consider moving toward yellow grits. Instant oatmeal has a gi of 79.
