Ingredient

L-threonine

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Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Manufacturers add L-threonine as a nutrient to fortify foods, particularly in specialized nutritional products, …

What it is

L-threonine is an essential amino acid, meaning the body cannot make it and it must be obtained from food. It is a building block for proteins and plays a role in various bodily functions. It can be produced through fermentation using microorganisms or isolated from animal or plant protein sources.

Why it's used

Manufacturers add L-threonine as a nutrient to fortify foods, particularly in specialized nutritional products, sports drinks, and medical foods. It is also used in animal feed to improve growth and feed efficiency. It is not typically used as a primary functional ingredient like a sweetener or preservative in common consumer foods.

Health notes

L-threonine is recognized as safe (GRAS) by the FDA when used as a nutrient. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated L-threonine and established an acceptable daily intake. While essential for health, very high intakes of individual amino acids are not generally recommended without specific medical guidance.

Allergen info

L-threonine is not derived from any of the 9 major allergens. It does not contain gluten.

Products containing L-threonine

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Bristol-Myers Squibb/Mead Johnson Nutritionals Vanilla Amino Acid-Based Nutrition Medical Food Powder, Vanilla Energy, Protein & Muscle Recovery Drinks 490kcal 13.7Protein 22Fat 59Carbs Peach Mango Energy Drink, Peach Mango Vital Pharmaceuticals, Inc. Peach Mango Energy Drink, Peach Mango Soda 0kcal 0Protein 0Fat 0Carbs Blackberry Blast Sweet Ice Tea, Blackberry Blast Vital Pharmaceuticals, Inc. Blackberry Blast Sweet Ice Tea, Blackberry Blast Iced & Bottle Tea 0kcal 0Protein 0Fat 0Carbs Potent Brain And Body Fuel Vital Pharmaceuticals, Inc. Potent Brain And Body Fuel Soda 0kcal 0Protein 0Fat 0Carbs Blue Raspberry Energy Drink, Blue Raspberry A SHOC BEVERAGE, LLC Blue Raspberry Energy Drink, Blue Raspberry Soda 2kcal 0Protein 0Fat 0.2Carbs Frose Rose Energy Drink, Frose Rose Vital Pharmaceuticals, Inc. Frose Rose Energy Drink, Frose Rose Soda 0kcal 0Protein 0Fat 0Carbs Mango Bango Natural Energy Drink, Mango Bango Vital Pharmaceuticals, Inc. Mango Bango Natural Energy Drink, Mango Bango Other Drinks 0kcal 0Protein 0Fat 0Carbs Candy Apple Crisp Potent Brain And Body Fuel, Candy Apple Crisp Vital Pharmaceuticals, Inc. Candy Apple Crisp Potent Brain And Body Fuel, Candy Apple Crisp Other Drinks 0kcal 0Protein 0Fat 0Carbs Vital Pharmaceuticals, Inc. Purple Kiddles Energy Drink, Purple Kiddles Soda 1kcal 0Protein 0Fat 0Carbs Radical Skadattle Super Creatine Ultra C0Q10 Energy Drink, Radical Skadattle Vital Pharmaceuticals, Inc. Radical Skadattle Super Creatine Ultra C0Q10 Energy Drink, Radical Skadattle Soda 0kcal 0Protein 0Fat 0Carbs Vital Pharmaceuticals, Inc. Potent Brain And Body Fuel, Raging Raspberry Hibiscus Soda 0kcal 0Protein 0Fat 0Carbs Delish Strawberry Kiss Potent Brain And Body Fuel, Delish Strawberry Kiss Vital Pharmaceuticals, Inc. Delish Strawberry Kiss Potent Brain And Body Fuel, Delish Strawberry Kiss Soda 0kcal 0Protein 0Fat 0Carbs
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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.