Is Citric Acid Gluten Free?
Yes — citric acid is gluten free. Industrial citric acid is produced by fermenting sugar (usually corn glucose, sometimes molasses or beet suga
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GF Ingredients
Ingredient verdicts · updated regularly
Is it gluten free? Plain-English verdicts on common ingredients.
Quick answers, the science behind each verdict, the brands that get it right, and what to watch for on labels. Reviewed against FDA, GFCO, and peer-reviewed sources — no guesswork.
65
Ingredients reviewed
17
Good to eat
38
Check first
10
Avoid
Quick find
Good to eat: gluten free (17)
Amaranth Gluten Free
Baking Powder Gluten Free
Buckwheat Gluten Free
Caramel Color Gluten Free
Carrageenan Gluten Free
Cassava flour Gluten Free
Citric Acid Gluten Free
Corn Starch Gluten Free
Maltodextrin Gluten Free
Modified Food Starch Gluten Free
MSG Gluten Free
Quinoa Gluten Free
Rice Flour Gluten Free
Sorghum Gluten Free
Tapioca Gluten Free
Vinegar Gluten Free White, Apple Cider, Distilled, Malt
Xanthan Gum Gluten Free
Check first: verify each product (38)
Natural Flavors Gluten Free
Oats Gluten Free
Almond flour Gluten Free
Bouillon cubes Gluten Free
Coconut flour Gluten Free
Corn tortillas Gluten Free
Deli meat Gluten Free
Dextrin Gluten Free
French fries Gluten Free
Glucose syrup Gluten Free
Gravy Gluten Free
Grits Gluten Free
Hot dogs Gluten Free
Hummus Gluten Free
Ketchup Gluten Free
Mayonnaise Gluten Free
Millet Gluten Free
Miso Gluten Free
Mustard Gluten Free
Polenta Gluten Free
Popcorn Gluten Free
Potato chips Gluten Free
Potato starch Gluten Free
Rice noodles Gluten Free
Salad dressing Gluten Free
Sausage Gluten Free
Shirataki noodles Gluten Free
Soba noodles Gluten Free
Soy lecithin Gluten Free
Tahini Gluten Free
Tamari Gluten Free
Teff Gluten Free
Tempeh Gluten Free
Teriyaki sauce Gluten Free
Vanilla extract Gluten Free
Wheat starch Gluten Free
Worcestershire sauce Gluten Free
Yeast Gluten Free Baker’s, Brewer’s, Nutritional
Is MSG Gluten Free?
Yes — MSG (monosodium glutamate) is gluten free. Modern MSG is produced by bacterial fermentation of sugars (most often from corn, tapioca, or
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Is Yeast Gluten Free? Baker’s, Brewer’s, Nutritional
Active dry, instant, and rapid-rise yeast (the kind used for baking) are gluten free — they’re grown on molasses-based media.
Is Yeast Gluten Free? Baker’s, Brewer’s, Nutritional Read More »
Is Baking Powder Gluten Free?
Most baking powders in the U.S. are gluten free. Standard formulations use baking soda, cream of tartar, and a starch filler — almost always co
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Is Corn Starch Gluten Free?
Yes — corn starch is naturally gluten free. It’s extracted from the endosperm of corn kernels through a wet-milling process, which removes prot
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Is Caramel Color Gluten Free?
In the United States, caramel color is almost always gluten free — it’s derived from corn syrup or sucrose. The FDA considers it gluten free un
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Is Couscous Gluten Free?
No — couscous is NOT gluten free. All types of couscous (regular, pearl/Israeli, Lebanese moghrabieh) are made from wheat semolina
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Is Quinoa Gluten Free?
Yes — quinoa is naturally gluten free. It’s a pseudocereal seed, not a grass like wheat/rye/barley, so it contains no gluten. The real risk is
Is Quinoa Gluten Free? Read More »
Is Vinegar Gluten Free? White, Apple Cider, Distilled, Malt
Almost all vinegars are gluten free — including distilled white vinegar (even when made from wheat), apple cider vinegar, balsamic, red wine, rice, sher
Is Vinegar Gluten Free? White, Apple Cider, Distilled, Malt Read More »
Are Natural Flavors Gluten Free?
Natural flavors are almost always gluten free, but there’s a real loophole: U.S. allergen labeling requires wheat to be disclo
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