amino acid
Glycine supplements
Half of the 1,078 glycine supplements in the NIH label database that print an amount list 300 mg or less per serving; the middle half list 100 mg to 846 mg (DSLD version 9.4.0, January 2026). The 52 products whose only supplement ingredient is glycine list a median of 1,000 mg.
- Products listing it
- 1,7151,078 print an amount; 636 list it inside a blend without an amount
- Median per serving
- 300 mgmiddle half 100 mg to 846 mg
How much glycine do supplements contain?
The median product lists 300 mg per serving. One in ten lists 30 mg or less, one in ten 1,650 mg or more. The amount printed most often is 100 mg (124 products).
Products by amount of glycine per serving
1,078 products, log scale; extreme 0.2% at each end left out of the drawing.
| Amount per serving | Products | For example |
|---|---|---|
| 100 mg | 124 | Wrinkle Free Skin Formula (Vitabase); Kid's Factors Wild Berry Smoothie Mix (Natural Factors); Vita-Glan-M (Douglas Laboratories) |
| 1,000 mg | 75 | Recon (MusclePharm); Glycine (Protocol For Life Balance); Pump-HD Orange Twist (BPI) |
| 50 mg | 74 | Energy/Sports Pack (Douglas Laboratories); Omega-3s Antioxidants (Anutra); Clinical Prostate Suppport (Natural Clinician) |
| 500 mg | 72 | gHP Sport (SomaLife International); Youth Formula (SomaLife); Gut Feeling Max (HoltraCeuticals) |
| 3,000 mg | 36 | Glycine Sticks (Metabolic Maintenance); ZZZ Razzzberry Lemonade (Core Nutritionals); Sleep Reset Orange Flavored (Integrative Therapeutics) |
| 25 mg | 35 | Amino Sport (Biotics Research Corporation); IGA+Intercellular Glutathione Inducers (Ecological Formulas); GABA-750 (Metabolic Maintenance) |
| 250 mg | 25 | Dextox In Guard Tabsules (Perque); Detox In Guard Tabsule (Perque); Amino D Tox (Designs for Health) |
| 30 mg | 22 | Take Heart II Without Hormones (Allergy Research Group); PureMulti for Men (PureFormulas); Vision Gard (DC) |
| 200 mg | 22 | True Calm (Vitabase); Palmetto-Plus (Biotics Research Corporation); StressArrest (Designs for Health) |
| 150 mg | 19 | Redox (Douglas Laboratories); Prostate Formula (Altrum); Liver Support & Detox Intensive Lemon-Berry Flavor (Genestra Brands) |
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 glycine?
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).
- Amino 2400 Wild CherryMET-Rx5,557 mg
- Hydrolyzed Protein Collagen Decadent ChocolateBody Kitchen5,250 mg
- Advanced Anti-Aging Formula Effervescent Drink Mix OrangeTimeFighters4,500 mg
- Free Form L-Glycine UnflavoredMuscle Feast4,300 mg
- Anti-Aging 3 Collagen Type I, II & III TropicalDr. Venessa's4,000 mg
- Anti-Aging 3 Collagen Type I, II & III Mixed BerryDr. Venessa's4,000 mg
- SecretagoguePrime4,000 mg
- SecretagogueUltra Prime4,000 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 340 mg; those entered in 2025, 315.3 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 27 | 340 mg |
| 2012 | 79 | 315.3 mg |
| 2013 | 111 | 210 mg |
| 2014 | 50 | 452.5 mg |
| 2015 | 46 | 450 mg |
| 2016 | 32 | 325 mg |
| 2017 | 49 | 390 mg |
| 2018 | 42 | 438 mg |
| 2019 | 61 | 150 mg |
| 2020 | 90 | 390 mg |
| 2021 | 67 | 313 mg |
| 2022 | 124 | 260 mg |
| 2023 | 96 | 212.5 mg |
| 2024 | 95 | 225 mg |
| 2025 | 109 | 315.3 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing glycine by DSLD product type
Brands listing it most: Douglas Laboratories (38), AdvoCare (29), Metabolic Maintenance (28), Metagenics (20), Enzymatic Therapy (19), Integrative Therapeutics (19), Pure Encapsulations (16), Muscle Feast (16), NutraBio (16), Thorne Research (13).
Every product listing glycine
1,715 products, A to Z by name (page 3 of 35), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Amino 1000NOW · off the market100 mg
- Amino 1000Myology · off the market424 mg
- Amino 1500 Free Form & Peptide BondGood 'N Natural · off the market699 mg
- Amino 1900Universal100 mg
- Amino 2000Prolab · off the market37 mg
- Amino 21DaVinci Laboratories Of Vermont · off the market45 mg
- Amino 21DaVinci Laboratories45 mg
- Amino 2250Universal Nutrition · off the market64 mg
- Amino 2250Universal64 mg
- Amino 2400 Wild CherryMET-Rx5,557 mg
- Amino 2700Universal113 mg
- Amino 3000MET-Rx636 mg
- Amino Acid 750 mgBluebonnet65 mg
- Amino Acid CapsulesBluebonnet · off the market65 mg
- Amino Acid CompleteKlaire Labs · off the market55 mg
- Amino Acid ComplexVitaCeutical Labs23 mg
- Amino Acid ComplexBronson15 mg
- Amino Acid ComplexIndiana Botanic Gardens149 mg
- Amino Acid ComplexBronson Laboratories15 mg
- Amino Acid ComplexWonder Labs349.5 mg
- Amino Acid ComplexSuperLife24 mg
- Amino Acid Complex 1500 mgBronson Laboratories · off the market699 mg
- Amino Acid Complex With CalciumSundown Naturalsin a blend
- Amino Acid Neurotransmitter FormulaAllergy Research Group300 mg
- Amino Acid Quick-SorbBiotics Research Corporationin a blend
- Amino AcidsEnriching Gifts357 mg
- Amino Acids 1000 mgBluebonnet60 mg
- Amino AllNutri-West1,362 mg
- Amino AthleteSource Naturals Athletic Seriesin a blend
- Amino BlendPL Progressive Laboratories · off the market95 mg
- Amino BlendProgressive Professional from Progressive Laboratories95 mg
- Amino ComplexThe Vitamin Shoppe206 mg
- Amino ComplexDr. Rico Perez16 mg
- Amino Complex & Immunity BlendYuen Diing Enterprisein a blend
- Amino Complex 500 mgQuest · off the market12 mg
- Amino D ToxDesigns for Health250 mg
- Amino DaySource Naturalsin a blend
- Amino Decanate Citrus LimeMuscleMedsin a blend
- Amino Decanate WatermelonMuscleMedsin a blend
- Amino Fruit ExplosionEPIQ · off the market4,200 mg
- Amino FuelTwinlab · off the market3,441 mg
- Amino Fuel 1000Twinlab78 mg
- Amino Gel-CapsProlab · off the market40 mg
- Amino Gram ForteDouglas Laboratories15 mg
- Amino Max 21FoodScience of Vermont45 mg
- Amino Pro 750 mgBodSmith · off the market45 mg
- Amino RepletePure Encapsulations102 mg
- Amino Restore Natural Choclate FlavorTaylor MD Formulations1,260 mg
- Amino SportBiotics Research Corporation25 mg
- Amino SupremeBricker Labs83 mg