amino acid
Phenylalanine supplements
Half of the 611 phenylalanine supplements in the NIH label database that print an amount list 250 mg or less per serving; the middle half list 100 mg to 597.5 mg (DSLD version 9.4.0, January 2026). The 24 products whose only supplement ingredient is phenylalanine list a median of 500 mg.
- Products listing it
- 1,203611 print an amount; 591 list it inside a blend without an amount
- Median per serving
- 250 mgmiddle half 100 mg to 597.5 mg
How much phenylalanine do supplements contain?
The median product lists 250 mg per serving. One in ten lists 32 mg or less, one in ten 932 mg or more. The amount printed most often is 500 mg (43 products).
Products by amount of phenylalanine per serving
611 products, log scale; extreme 0.2% at each end left out of the drawing.
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 phenylalanine?
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).
- 100% Whey Protein ApfelstrudelBody Attack Sports Nutrition3,470 mg
- Grunt Cherry LimeRedcon12,630 mg
- Grunt Blood OrangeRedcon12,630 mg
- Amino Warheads Sour Green AppleGhost2,550 mg
- MRP ChocolatePure Advantage2,374 mg
- MRP VanillaPure Advantage2,374 mg
- Amino Restore Natural Choclate FlavorTaylor MD Formulations1,770 mg
- Leanology ChocolateTriVita1,750 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 422 mg; those entered in 2025, 200 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 21 | 422 mg |
| 2012 | 45 | 350 mg |
| 2013 | 50 | 250 mg |
| 2014 | 29 | 647 mg |
| 2015 | 27 | 100 mg |
| 2016 | 25 | 250 mg |
| 2017 | 27 | 104 mg |
| 2018 | 20 | 813 mg |
| 2019 | 25 | 135 mg |
| 2020 | 62 | 250 mg |
| 2021 | 47 | 250 mg |
| 2022 | 58 | 250 mg |
| 2023 | 48 | 200 mg |
| 2024 | 62 | 240 mg |
| 2025 | 65 | 200 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing phenylalanine by DSLD product type
Brands listing it most: Douglas Laboratories (21), Axe & Sledge Supplements (15), Source Naturals (13), Arms Race Nutrition (12), Muscle Feast (11), Bronson (10), Metabolic Nutrition (10), ALLMAX (9), California Academy of Health (8), Natural Factors VegiDay (8).
Every product listing phenylalanine
1,203 products, A to Z by name (page 14 of 25), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- L-Phenylalanine 500 mgAN Amazing Nutrition Amazing Formulas500 mg
- L-Phenylalanine 500 mgSource Naturals1,000 mg
- L-Phenylalanine 500 mgMetabolic Maintenance500 mg
- L-Phenylalanine 500 mgBest Naturals500 mg
- L-Phenylalanine 500 mgNutricost500 mg
- L-Phenylalanine 500 mgNOW500 mg
- L-Phenylalanine 500 mgBluebonnet500 mg
- L-Phenylalanine 500 mg CapsulesBulkSupplements.com500 mg
- L-Phenylalanine 500 MilligramsNutraBio500 mg
- L-Phenylalanine Caps 500 mgCountry Lifeanother unit
- L-Phenylalanine PowderNootropics Depot500 mg
- L-Phenylalanine PowderHerbadiet500 mg
- LBA PRO Chocolate SyrupAll American EFX0.155 mg
- LBA PRO Vanilla GlazeAll American EFX0.155 mg
- Lean ComplexViMultiin a blend
- Leanology ChocolateTriVita1,750 mg
- Leg Day Passion Fruit PineappleNutraBio300 mg
- Level II GrapeFormutech Nutritionin a blend
- LiftLife Priority600 mg
- Lift CapsLife Priority600 mg
- Light Yellow Oval Tablet Amino AcidBronson · off the market20 mg
- Lineaslim 7 Nutrient ConcentrateApax USAin a blend
- Lipo 100 HardcoreBody Attack50 mg
- Lipo CapsMediPlan Diet Servicesin a blend
- LipoNitroIntechra Healthin a blend
- Liquid Advanced Amino AcidsCalifornia Academy of Health80 mg
- Liquid Advanced Ginseng PlusCalifornia Academy of Health · off the market50 mg
- Liquid Amino AcidsWonder Laboratories17 mg
- Liquid Amino AcidsDC18 mg
- Liquid AminosPrecision Engineered · off the market254 mg
- Liquid AminosGood 'N Natural · off the market226 mg
- Liquid Aminos Wild Cherry FlavorPrecision Engineered248 mg
- Liquid Aminos Wild Cherry FlavorGood 'N Natural · off the market248 mg
- Liquid Collagen Complex Healthy Hair, Skin & Nails Delicious Grape FlavorRejuviCarein a blend
- Liquid Pro Anti-Aging TherapyCalifornia Academy of Health · off the market75 mg
- Liquid Weight LossCalifornia Academy of Healthin a blend
- Lvr-SplLoomis Enzymesin a blend
- Lyfe EssentialsWholly Liquidin a blend
- LypedorumNutraceta · off the marketin a blend
- M.E. X-CeleratorTransformations Weight Loss200 mg
- MacroMeal Chocolate Protein + SuperfoodsMacroLife Naturals · off the market1,549 mg
- MacroMeal Ultimate ChocolateMacroLife Naturals1,549 mg
- MacroMeal Ultimate Chocolate Protein PowderMacroLife Naturalsin a blend
- MacroMeal Ultimate VanillaMacroLife Naturalsin a blend
- MacroMeal Ultimate Vanilla Protein PowderMacroLife Naturalsin a blend
- MacroMeal Vanilla Protein + SuperfoodsMacroLife Naturals · off the market1,508 mg
- Magnus SupremeOmniLife505 mg
- Manetabolism PlusThe Mane Choicein a blend
- Marine AminosPotent Sea30 mg
- Mass-TechMuscleTechin a blend