Ingredient

Ferrous Sulfate Thiamine Mononitrate

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Source

Not animal-derived

Allergen

Role in food

These ingredients are added to foods to increase their nutritional value, specifically to provide …

What it is

Ferrous sulfate is a type of iron, a mineral naturally found in the body and in many foods. Thiamine mononitrate is a synthetic form of thiamine, also known as vitamin B1. Both are often added to foods as supplements.

Why it's used

These ingredients are added to foods to increase their nutritional value, specifically to provide iron and vitamin B1. They are often found in fortified foods like cereals, bread products, and infant formulas.

Health notes

Ferrous sulfate is used as an iron supplement and is generally recognized as safe (GRAS) by the FDA when used as intended. Thiamine mononitrate is also GRAS and is used as a nutrient supplement. Both are essential nutrients. JECFA has evaluated both substances and set acceptable daily intakes. High doses of iron can cause digestive upset, but typical amounts in fortified foods are unlikely to cause adverse effects.

Allergen info

Neither ferrous sulfate nor thiamine mononitrate are derived from any of the FDA's major allergens. They do not contain gluten.

Products containing Ferrous Sulfate Thiamine Mononitrate

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The Kroger Co. Kroger, Bread Crumbs, Traditional, Traditional Bread & Muffin Mixes 393kcal 14.3Protein 5.4Fat 67.9Carbs Key Food Stores Co-Operative, Inc. Key Food, Quality, Corn Muffin Mix Cake, Cookie & Cupcake Mixes 405kcal 5.4Protein 10.8Fat 70.3Carbs The Moran Group Incorporated Breaded Onion Rings French Fries, Potatoes & Onion Rings 227kcal 2.3Protein 11.4Fat 28.4Carbs Hans Kissle Co., Inc. Aegean Greek Salad Deli Salads High in sodium — 22% DV per serving High in saturated fat — 23% DV per serving 220kcal 4.9Protein 14.6Fat 17.1Carbs Hannaford Bros. Co. Chicken Poblano Other Deli High in sodium — 35% DV per serving High in saturated fat — 50% DV per serving High in cholesterol — 29% DV per serving 147kcal 7.9Protein 5.6Fat 15.3Carbs The Kroger Co. Classic Chicken Noodle Soup Other Soups High in sodium — 32% DV per serving 45kcal 3.3Protein 0.6Fat 6.1Carbs Ukrop's Homestyle Foods, LLC Authentic Italian Lasagna Other Deli High in sodium — 60% DV per serving High in saturated fat — 60% DV per serving High in cholesterol — 42% DV per serving 173kcal 11.5Protein 9.0Fat 11.5Carbs Martin's Super Markets 1/2 White Cake White Iced, 1/2 White Cake White Cakes, Cupcakes, Snack Cakes High in saturated fat — 35% DV per serving 382kcal 2.0Protein 19.6Fat 52.0Carbs Taylor Fresh Foods, Inc. Macaroni And Cheese Topped With Blackened Seasoned White Chicken Meat, Macaroni And Cheese Other Deli High in sodium — 29% DV per serving High in saturated fat — 40% DV per serving 190kcal 11.3Protein 9.9Fat 14.8Carbs Hans Kissle Co., Inc. Chicken & Broccoli Penne Alfredo With White Meat Chicken, White Meat Chicken Other Deli High in saturated fat — 35% DV per serving —kcal 17.0Protein 7.6Fat 31.0Carbs

Louisa Food Products Inc Spinach & Cheese Toasted Ravioli, Spinach & Cheese Frozen Dinners & Entrees High in saturated fat — 20% DV per serving 296kcal 7.4Protein 17.3Fat 25.9Carbs Visionary Foods LLC Fettuccini Alfredo Pasta, Fettuccini Alfredo Frozen Dinners & Entrees 165kcal 5.9Protein 9.4Fat 14.1Carbs

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.