Ingredient · E551

Silicon Dioxide For Anticaking

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add silicon dioxide to powdered foods to prevent clumping and caking, ensuring a …

What it is

Silicon dioxide is a naturally occurring compound made of silicon and oxygen. It is found in sand and quartz. In food processing, it is typically manufactured by reacting sodium silicate with a mineral acid.

Why it's used

Manufacturers add silicon dioxide to powdered foods to prevent clumping and caking, ensuring a free-flowing product. It is commonly found in spice blends, powdered drink mixes, and grated cheeses.

Health notes

Silicon dioxide is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) for use as an anticaking agent. International bodies like JECFA and EFSA have also evaluated it. At typical dietary levels, it is not expected to cause adverse health effects. There are no widespread controversies regarding its use in food.

Allergen info

Silicon dioxide is not derived from any of the 9 FDA major allergens and does not contain gluten.

Products containing Silicon Dioxide For Anticaking

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General Mills, Inc. Mini Meal Kit, Rice Pasta & Cheddar Lunch Snacks & Combinations High in sodium — 21% DV per serving High in saturated fat — 23% DV per serving 388kcal 5.8Protein 7.8Fat 73.8Carbs General Mills, Inc. Mini Meal Kit Lunch Snacks & Combinations High in sodium — 28% DV per serving 398kcal 9.7Protein 9.7Fat 68.0Carbs General Mills, Inc. Cheeseburger Skillet Dinner Pasta Dinners High in sodium — 22% DV per serving 317kcal 11.7Protein 8.3Fat 50Carbs General Mills, Inc. Fun Pasta Shapes With Yummy Cheddar Macaroni & Cheese Pasta Dinners 391kcal 10.9Protein 10.9Fat 63.0Carbs General Mills, Inc. Macaroni & Cheese, Real Aged Cheddar Pasta Dinners 386kcal 12.3Protein 7.9Fat 64.9Carbs General Mills, Inc. Penne Pasta With Alfredo Sauce Pasta Dinners 356kcal 16.9Protein 4.2Fat 64.4Carbs General Mills, Inc. Fun Pasta Shapes With Yummy Cheddar Macaroni & Cheese Pasta Dinners 391kcal 10.9Protein 10.9Fat 63.0Carbs General Mills, Inc. Macaroni & Cheese, White Cheddar Pasta Dinners High in sodium — 20% DV per serving 386kcal 12.3Protein 8.8Fat 64.9Carbs General Mills, Inc. Curly Fettuccine With White Cheddar & Broccoli Sauce Pasta Dinners 357kcal 16.1Protein 4.5Fat 67.9Carbs Rice Pasta & Cheddar General Mills, Inc. Rice Pasta & Cheddar Pasta Dinners High in sodium — 20% DV per serving 404kcal 7.0Protein 8.8Fat 70.2Carbs General Mills, Inc. Rotini Pasta With Three Cheese Sauce Pasta Dinners High in sodium — 22% DV per serving 355kcal 16.1Protein 4.8Fat 64.5Carbs Betty Dain Creations, LLC Annie's, Gluten Free Rice Pasta & Cheddar Macaroni & Cheese Pasta Dinners 386kcal 7.0Protein 7.9Fat 70.2Carbs

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.