Ingredient · E551

A Natural Anti-caking Agent

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Source

Not animal-derived

Allergen

Role in food

Silicon dioxide is used as an anti-caking agent to prevent powdered ingredients from clumping …

What it is

Silicon dioxide is a naturally occurring compound made of silicon and oxygen. It is found in sand and quartz. It is often produced commercially by reacting sodium silicate with a mineral acid.

Why it's used

Silicon dioxide is used as an anti-caking agent to prevent powdered ingredients from clumping together. This helps maintain a free-flowing texture in products like seasoning mixes, salts, and powdered drink mixes.

Health notes

In the United States, silicon dioxide is Generally Recognized As Safe (GRAS) by the FDA for use as an anti-caking agent. International bodies like JECFA and EFSA have also evaluated it. At the levels typically used in food, it is not expected to cause adverse health effects. There is no widespread controversy regarding its safety in food.

Allergen info

Not a major allergen.

Products containing A Natural Anti-caking Agent

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Dream Foods International LLC Casa Mexicana, Chicken Fajitas Seasoning Mix Seasoning Mixes, Salts, Marinades & Tenderizers 286kcal 14.3Protein 7.1Fat 42.9Carbs Bad Byron's Specialty Food Products Inc. Barbeque Seasoning, Barbeque Seasoning Mixes, Salts, Marinades & Tenderizers 0kcal 0Protein 0Fat 0Carbs

Dream Foods International LLC Taco Seasoning Mix Seasoning Mixes, Salts, Marinades & Tenderizers 286kcal 14.3Protein 9.3Fat 57.1Carbs

Bad Byron's Specialty Food Products Inc. Barbeque Seasoning, Barbeque Seasoning Mixes, Salts, Marinades & Tenderizers 0kcal 0Protein 0Fat 0Carbs Whole Foods Market, Inc. Caribbean Barbecue Seasoning, Caribbean Barbecue Seasoning Mixes, Salts, Marinades & Tenderizers 250kcal 0Protein 0Fat 50Carbs

Dream Foods International LLC Casa Mexicana, Fish Tacos Authentic Seasoning Mix Seasoning Mixes, Salts, Marinades & Tenderizers 286kcal 14.3Protein 9.3Fat 57.1Carbs Whole Foods Market, Inc. Southwestern Grille Seasoning, Southwestern Grille Seasoning Mixes, Salts, Marinades & Tenderizers 250kcal 0Protein 0Fat 50Carbs Whole Foods Market, Inc. Blackened Cajun Spice Seasoning, Blackened Cajun Spice Seasoning Mixes, Salts, Marinades & Tenderizers 250kcal 0Protein 0Fat 50Carbs Taylor Fresh Foods, Inc. Breaded Chicken Truffle Mac & Cheese Butter, Breaded Chicken Truffle Mac & Cheese Other Deli High in sodium — 25% DV per serving High in saturated fat — 40% DV per serving High in cholesterol — 23% DV per serving 214kcal 12.1Protein 12.9Fat 13.6Carbs Coborn's Incorporated Picnic Macaroni Salad With Ham & Cheddar, Picnic Macaroni With Ham & Cheddar Deli Salads High in sodium — 27% DV per serving High in saturated fat — 20% DV per serving 260kcal 6Protein 17Fat 16Carbs Taylor Fresh Foods, Inc. Chicken Katsu Inspired With Jasmine Rice Fully Cooked Breaded White Chicken Meat In A Katsu Sauce With Rice, Cabbage And Sesame Seeds Ready Meals, Chicken Katsu Inspired With Jasmine Rice Other Deli High in sodium — 75% DV per serving High in added sugars — 26% DV per serving High in cholesterol — 23% DV per serving 151kcal 7.7Protein 2.7Fat 23.0Carbs

Meijer, Inc. Signature, Chicken Parmesan Topped With Marinara Sauce And Mozzarella Cheese Served With Spaghetti, Marinara Sauce, And Parmesan Cheese, Chicken Parmesan Other Deli High in sodium — 81% DV per serving High in saturated fat — 30% DV per serving High in cholesterol — 34% DV per serving 134kcal 8.9Protein 4.8Fat 14.6Carbs

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.