amino acid

Leucine supplements

Half of the 2,056 leucine supplements in the NIH label database that print an amount list 2.5 g or less per serving; the middle half list 1 g to 3.5 g (DSLD version 9.4.0, January 2026). The 32 products whose only supplement ingredient is leucine list a median of 3 g.

Products listing it: 3,3042,056 print an amount; 1,248 list it inside a blend without an amount
Median per serving: 2.5 gmiddle half 1 g to 3.5 g

How much leucine do supplements contain?

The median product lists 2.5 g per serving. One in ten lists 0.203 g or less, one in ten 5 g or more. The amount printed most often is 2.5 g (261 products).

Products by amount of leucine per serving

2,056 products, log scale; extreme 0.2% at each end left out of the drawing.

The amounts printed most often
Amount per serving	Products	For example
2.5 g	261	N'Gage Glacier Punch (Axis Labs); Purple InTrain Purple Raspberry Flavor (Controlled Labs); BCAA Power Fruit Punch Flavor (Labrada Nutrition)
3 g	206	Amino Complex 4400 (GNC Pro Performance); RapidDrive BCAA 5000 Unflavored (GNC Pro Performance); RapidDrive Pre-Workout Amino Complex Fruit Punch (GNC Pro Performance)
3.5 g	130	RapidDrive Post-Workout Amino Complex Fruit Punch (GNC Pro Performance); XTEND Lemon Lime Sour (Scivation); Endurance BCAA Plus (Fahrenheit Nutrition)
2 g	123	Whey For Her Protein Vanilla Bean (Vitamin World); Whey For Her Protein Wild Strawberry (Vitamin World); SuperPump Max Raspberry Lemonade (Gaspari Nutrition)
5 g	109	SizeOn Fruit Punch (Gaspari Nutrition); SizeOn Concord Grape (Gaspari Nutrition); Leucine (Serious Nutrition Solutions)
0.5 g	104	Torch After-Burn Recovery Drink Creamy Vanilla Flavor (Market America); L-Leucine 500 mg (Douglas Laboratories); Pre-Load Creatine Complex Fruit Punch (ON Optimum Nutrition)
4 g	76	Monster Mass Chocolate (CytoSport); Monster Mass Vanilla Creme (CytoSport); Monster Mass Strawberries 'N Creme (CytoSport)
1 g	63	Pump-HD Orange Twist (BPI); Pump-HD Blue Ice Lemonade (BPI); Amino Freak AF Blue Raspberry Flavour (PharmaFreak)
1.5 g	53	Monster Pump Fruit Punch (CytoSport); Monster Pump Blue Raspberry (CytoSport); Monster Pump Sour Grape (CytoSport)
1.25 g	38	Critical Aminos XT Grape (BodyTech); Critical Aminos XT Pineapple (BodyTech); Critical Aminos XT Fruit Punch (BodyTech)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most leucine?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

BCAA Orange FlavourSCI-MX Nutrition38.3 g
Hit BCAA 4:1:1 + Glutamine PeachDY Nutrition33.33 g
Hit BCAA 4:1:1 + Glutamine StrawberryDY Nutrition33.33 g
Grunt Cherry LimeRedcon131.6 g
Grunt Blood OrangeRedcon131.6 g
Amplified Total Muscle Recovery ChocolateGNC Pro Performance AMP30 g
Amplified Wheybolic Extreme 60 Ripped Chocolate Peanut ButterGNC Pro Performance AMP19.99 g
BCAA Powder Berry Blast FlavourILN Iron Labs Nutrition18.61 g

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 2 g; those entered in 2025, 2.5 g.

Median leucine per serving by the year the label entered DSLD (years with 20+ products)
Year	Products	Median per serving
2011	64	2 g
2012	79	1.44 g
2013	119	1 g
2014	121	2.2 g
2015	172	2.5 g
2016	115	2.25 g
2017	124	2.5 g
2018	125	2.6 g
2019	83	2.87 g
2020	213	2.5 g
2021	168	3 g
2022	169	2.5 g
2023	163	2.5 g
2024	162	2.5 g
2025	179	2.5 g

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing leucine by DSLD product type

Brands listing it most: NutraBio (105), PS ProSupps (57), GNC Beyond Raw (56), Core Nutritionals (49), GNC Pro Performance AMP (46), GNC AMP Advanced Muscle Performance (39), MuscleTech Performance Series (36), XTEND (35), CytoSport (33), Gaspari Nutrition (31).

Every product listing leucine

3,304 products, A to Z by name (page 50 of 67), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

PlantFusion Chocolate RaspberryNutraFusion Nutritionalsin a blend
PlantFusion Cookies N' CremeNutraFusion Nutritionalsin a blend
PlantFusion UnflavoredNutraFusion Nutritionalsin a blend
PlantFusion Vanilla BeanNutraFusion Nutritionals · off the marketin a blend
Plasma Blast Fruit PunchHuman Evolution Supplements · off the market1.6 g
Platinum BCAA 8:1:1MuscleTech Essential Series0.8 g
Platinum Core Fuel Melon Berry PunchPMD Platinumin a blend
Platinum X-30 PlusRightWay Nutrition · off the marketin a blend
Pork Gelatin UnflavoredGreat Lakes Gelatin0.312 g
Post BCAA GrapeANSin a blend
Post BCAA Strawberry KiwiANSin a blend
Post BCAA WatermelonANSin a blend
POST Cinnamon French ToastCore Nutritionals5 g
POST Fruity CerealCore Nutritionals5 g
POST Hot CocoaCore Nutritionals5 g
Post JYM Active Ingredients Fruit PunchJYM Supplement Science · off the market3.6 g
Post JYM Active Ingredients Matrix Fruit PunchJYM · off the market3.6 g
Post JYM Active Ingredients Matrix LemonadeJYM Supplement Science · off the market3.6 g
Post JYM Active Ingredients Matrix Mandarin OrangeJYM Supplement Science · off the market3.6 g
Post JYM Active Ingredients Matrix Rainbow SherbetJYM Supplement Science · off the market3.6 g
Post JYM Active Ingredients Matrix WatermelonJYM Supplement Science · off the market3.6 g
Post JYM Active Ingredients Matrix WatermelonJYM · off the market3.6 g
Post JYM BCAAs+ Recovery Matrix Blue Arctic FreezeJYM Supplement Science3.6 g
Post JYM BCAAs+ Recovery Matrix Fruit PunchJYM Supplement Science3.6 g
Post JYM BCAAs+ Recovery Matrix Rainbow SherbetJYM Supplement Science3.6 g
Post Peach MangoNutraBio4 g
POST Peanut Butter BrittleCore Nutritionals5 g
Post Protocol Black CherryBodybuilding.com Platinum Series6 g
Post Protocol Fruit PunchBodybuilding.com Platinum Series6 g
Post Raw UnflavoredNutraBio · off the market4 g
Post WorkATP Mechanix · off the marketin a blend
Post WorkoutATP Mechanix · off the marketin a blend
Post Workout Fruit PunchEquate2.6 g
Post-Rx Blue RaspberryRivalus2.5 g
Post-Rx Green AppleRivalus2.5 g
Post-RX Lemon LimeRivalus2.5 g
Post-Workout Recovery Cherry Lemonade FlavoredXS Rechargein a blend
Post-Workout Recovery ChocolateAdvoCare0.2 g
Post-Workout Recovery Fruit PunchXSin a blend
Post-Workout Recovery Fruit Punch FlavoredXSin a blend
Post-Workout Recovery VanillaAdvoCare0.2 g
PostAbolic Exotic BerryChaotic-Labzin a blend
PostAbolic Exotic OrangeChaotic-Labzin a blend
Postlift Blackberry LemonadeNutrex Research Clinical Edge2.26 g
Postlift Fruit PunchNutrex Research Clinical Edge5 g
Postlift StrawberryNutrex Research Clinical Edge2.26 g
PostPump UnflavoredDo Vitamins1.5 g
Postworkout Mixed BerryAML Advanced Molecular Labs5 g
Power Multi-VCalifornia Academy of Healthin a blend
Power Protein 90 Apricot-Maracuya FlavourBody Attack Sports Nutrition0.3 g