Is McCormick Onion Powder low FODMAP?

Onion powder is a straightforward high-FODMAP flag: it is simply dehydrated, ground onion, so the jar is a concentrated form of the fructans that make fresh onion a top trigger food. McCormick's label confirms there is nothing else to weigh — onion powder is the only ingredient, made from dehydrated white onions with no added sodium or fillers. Concentration is the whole issue: drying removes the water and leaves the fructans behind, so a teaspoon of powder represents far more onion than the same spoonful of chopped fresh onion. That also makes it easy to underestimate — a 'little sprinkle' in a spice rub, salad dressing mix, or burger patty still counts, and onion powder hides inside countless US pantry staples, from seasoned salts and ranch mixes to taco packets and bouillon, so scanning ingredient lists for it matters as much as the jar itself. At any practical culinary amount it works out to a meaningful onion dose, which is why most people following a strict elimination phase skip it entirely. For the savory allium base it provides, the green tops of scallions and chives deliver genuine onion character with negligible fructans, and a pinch of asafetida bloomed in hot oil is the classic powdered stand-in.

📏 Even 1/4 teaspoon represents a meaningful amount of concentrated onion. During strict elimination, most people skip it entirely — including inside pre-made blends, where it often hides mid-label.