Ingredient

L-citrulline

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add L-citrulline to foods and beverages, particularly sports drinks and supplements. It is …

What it is

L-citrulline is a naturally occurring amino acid. It is found in some foods, like watermelon, and is also produced by the body. It can be manufactured through chemical synthesis or fermentation processes.

Why it's used

Manufacturers add L-citrulline to foods and beverages, particularly sports drinks and supplements. It is often included for its potential role in supporting exercise performance and muscle recovery.

Health notes

In the United States, L-citrulline is generally recognized as safe (GRAS) for use in food. International bodies like JECFA (Joint FAO/WHO Expert Committee on Food Additives) have evaluated it. Research into its health effects is ongoing, with some studies suggesting benefits for exercise and cardiovascular health, while other evidence is mixed or inconclusive.

Allergen info

L-citrulline is not derived from any of the 9 major allergens recognized by the FDA, nor does it contain gluten.

Products containing L-citrulline

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Lifestyle Beverage, Passion Fruit Neuro Brands, Inc. Lifestyle Beverage, Passion Fruit Other Drinks 8kcal 0Protein 0Fat 2.1Carbs Sun Drenched Citrus Electrolyte Beverage, Sun Drenched Citrus World Waters LLC. Sun Drenched Citrus Electrolyte Beverage, Sun Drenched Citrus Other Drinks 6kcal 0Protein 0Fat 1.3Carbs World Waters LLC. Lemon Lime Electrolyte Beverage, Lemon Lime Other Drinks 6kcal 0Protein 0Fat 1.3Carbs World Waters LLC. Berry Blast Electrolyte Beverage, Berry Blast Other Drinks 6kcal 0Protein 0Fat 1.3Carbs Power Elixir, LLC Rescue Beverage Other Drinks 34kcal 0Protein 0Fat 8.4Carbs +RED ELIXIR, LLC Rescue Beverage, Berry Citrus Other Drinks 23kcal 0Protein 0Fat 7.9Carbs Orange Slice Flavored Superhuman Performance Energy Drink, Orange Slice Woodbolt Distribution, LLC Orange Slice Flavored Superhuman Performance Energy Drink, Orange Slice Soda 0kcal 0Protein 0Fat 0Carbs Icy Blue Razz Flavored Ultimate Superhuman Performance Energy Drink, Icy Blue Razz Woodbolt Distribution, LLC Icy Blue Razz Flavored Ultimate Superhuman Performance Energy Drink, Icy Blue Razz Soda 0kcal 0Protein 0Fat 0Carbs Fruit Punch Flavored Superhuman Performance Energy Drink, Fruit Punch Woodbolt Distribution, LLC Fruit Punch Flavored Superhuman Performance Energy Drink, Fruit Punch Soda 0kcal 0Protein 0Fat 0Carbs Arctic Snow Cone Flavored Superhuman Performance Energy Drink, Arctic Snow Cone Woodbolt Distribution, LLC Arctic Snow Cone Flavored Superhuman Performance Energy Drink, Arctic Snow Cone Soda 0kcal 0Protein 0Fat 0Carbs Woodbolt Distribution, LLC Fruit Punch Flavored Zero Sugar Performance Energy Drink, Fruit Punch Soda 0kcal 0Protein 0Fat 0Carbs Watermelon Flavored Explosive Energy +Performance Energy Drink Woodbolt Distribution, LLC Watermelon Flavored Explosive Energy +Performance Energy Drink Energy, Protein & Muscle Recovery Drinks 0kcal 0Protein 0Fat 0Carbs
Citric Acid (62 products) Natural Flavors (51 products) Cyanocobalamin (50 products) Sucralose (48 products) Carbonated Water (48 products) Malic Acid (44 products) Niacinamide (44 products) Acesulfame Potassium (32 products) Sodium Citrate (31 products) Caffeine Anhydrous (28 products)

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.