What are modified proteins?
Modified proteins are protein ingredients that have been chemically, enzymatically, or physically altered to change their functional properties for use in food manufacturing. Common examples include hydrolyzed proteins (broken into smaller peptides and amino acids), protein isolates and concentrates (purified and concentrated from whole food sources), textured vegetable protein (TVP), protein hydrolysates, and caseinates. In the NOVA food classification system, these food additives are considered characteristic of ultra-processed foods, as they undergo industrial transformations that fundamentally change whole food ingredients. Modified proteins provide specific functional properties like emulsification, foaming, binding, and texture modification in processed food products.
1,291 products in our database contain modified proteins. 803 of them (62%) are Level 4, the most processed of our four levels.
Which foods contain modified proteins?
Modified proteins are found in protein bars, sports nutrition shakes, infant formula, coffee creamers, non-dairy whipped toppings, meat alternatives, vegetarian burgers, processed meats (as binders), instant soups, seasoning blends, hypoallergenic medical foods, and many products carrying protein content claims.

Great Value, Chili No Beans

Worthington, Loma Linda, Big Franks Vegetable & Grain Protein Links

Chili No Beans
Hannaford

Shumai Dumplings with Beef, Beef
J-Basket
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Chick'n Pop-Ems Nuggets
Meal Mart

Freeze Dried Rice & Chicken Entree

Chili No Beans
Essential Everyday

French Onion Dip, French Onion
Borden

Air Fryer Seasoned Coating Mix for Fish

Vegetable & Grain Protein Big Franks Links
Worthington

Wolf Homestyle Chili, 15 Oz

Coconut Ginger Rice, Coconut Ginger

Vegetable Spring Rolls with Sauce, Vegetable
Chungs

Family Recipe Italian Dressing

Original Bbq Sauce, Original Bbq
Fire & Smoke Society

Classic Thai Flavor Peanut Sauce Mix

Peanut Sauce & Coating Mix

Cajun Jambalaya Entree Mix

Cajun Dirty Rice Entree Mix

Chief Brand Products, Ginger Soy Sauce

Shirakiku, Cooking Wine

Beef Stew
Great Value

Beef Stew
Southgate

Beef Stew, Beef
Kroger

Au Jus Gravy Mix, Au Jus

Wolf Hot Chili Without Beans, 15 Oz

Chocolate Peanut Butter Flavored Bar, Chocolate Peanut Butter

Teriyaki Baste & Glaze
Iron Chef

Corn Boil Seasoning, Corn Boil
Wileys

Original Bacon Salt, Original
J&Ds

A Taste of Thai, Coconut Ginger Soup Base

Garlic & Vegetable Instant Rice Noodle Soup

Dynasty, Won Ton Soup Base Mix

Simply Asia, Thai Kitchen, Hot & Sour Rice Noodle Soup Bowl

Hormel, Mary Kitchen, Homestyle Roast Beef Hash

Organic Sunflower Chili Sin Carne

Homestyle Roast Beef Hash, Homestyle

Meatballs, Original

Cajun Blackened Seasoning, Cajun Blackened

Imitation Bacon Chips, Bacon

Pamana, Pang Kare-Kare, Stew Based Mix

Super Serum Protein, Cocoa
Paleoethics

Plant-Based Vegan Drumsticks
Be Leaf

Nori Komi Furikake
Mishima

Fava Taco Style Bean Protein Crumbles, Fava
Uptons Naturals
Porcini Mushrooms
Porcini Mushrooms
Isola
Organic Sunflower Hache
Hache Organic Sunflower, Hache
Organic Sunflower Hache, Hache
Organic Sunflower Hache, Hache
Sunflower Family
Also known as
Modified Proteins can appear in ingredient lists under several names. If you see any of the following, this is the ingredient family you are looking at:
Function
Modified proteins serve diverse functional roles depending on the type of modification. Hydrolyzed proteins provide flavor enhancement and improved solubility for beverages and infant formulas. Protein isolates and concentrates add protein content to bars, shakes, and fortified foods. Textured vegetable protein provides meat-like texture in vegetarian and cost-reduced products. Caseinates act as emulsifiers and foaming agents in coffee creamers and whipped toppings. Gelatin hydrolysates provide clear gelling in gummy supplements.
Sources
Modified proteins are produced through various industrial processes applied to protein sources including soy, whey, casein, wheat gluten, pea, and collagen. Hydrolysis uses acids, alkalis, or proteolytic enzymes to break protein chains into smaller peptides and free amino acids. Protein isolation involves extracting and purifying protein from whole food sources through isoelectric precipitation, membrane filtration, or ion exchange. Texturization processes like extrusion force protein through heated dies to create fibrous, meat-like structures. Caseinate production involves dissolving acid casein with alkali to create soluble sodium or calcium caseinate.
Health considerations
Protein hydrolysates are used in hypoallergenic infant formulas because the smaller peptide fragments are less likely to trigger immune responses than intact proteins. Some modified proteins like hydrolyzed vegetable protein contain free glutamate that functions similarly to MSG. Modified proteins derived from major allergen sources (soy, wheat, milk, eggs) must be declared on food labels per FDA allergen labeling requirements.
This information is for educational purposes only and does not constitute medical advice.
Regulatory
Modified proteins are regulated under various FDA frameworks depending on the specific product. Hydrolyzed proteins must be declared by their specific name (e.g., "hydrolyzed soy protein") and cannot be listed simply as "natural flavor" even though they contribute flavor. Protein isolates used in standardized foods must meet specific compositional requirements. The EU regulates modified proteins as food ingredients and requires allergen declaration for proteins derived from major allergen sources.