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 17 of 35), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Kinetic BCAA - SAA Strawberry LemonadeNeon Sport · off the marketin a blend
- Kinetic BCAA-SAA WatermelonNeon Sportin a blend
- Klean IsolateKlean Athlete325 mg
- Knock-OutSchiff40 mg
- Krea-Karb StrawberryKiwiXLSN Xcel Sports Nutrition · off the market2,000 mg
- L-GlycineHard Rhino1,000 mg
- L-Glycine 1,000 mgDr. Mercola1,000 mg
- L-Glycine 500 mgNatural Grocers by Vitamin Cottage500 mg
- L-Glycine PowderMicro Ingredients1,000 mg
- L-Methylfolate 1 mgMethylPro270 mg
- L-Methylfolate 10 mgMetabolic Maintenance260 mg
- L-Methylfolate 10 mgMethylPro260 mg
- L-Methylfolate 10 mg from QuatrefolicMethylPro210 mg
- L-Methylfolate 15 mgTeraputics Pure Life250 mg
- L-Methylfolate 15 mgMethylPro250 mg
- L-Methylfolate 15 mgMetabolic Maintenance250 mg
- L-Methylfolate 15 mg + GlycineaSquared Nutrition250 mg
- L-Methylfolate 2.5 mgMetabolic Maintenance270 mg
- L-Methylfolate 2.5 mgMethylPro270 mg
- L-Methylfolate 5 mgMetabolic Maintenance265 mg
- L-Methylfolate 5 mgMethylPro265 mg
- L-Methylfolate 7.5 mgMethylPro260 mg
- L-Theanine 100 mgMetabolic Maintenance300 mg
- L-ToxMM Sports Nutritionin a blend
- LBA PRO Chocolate SyrupAll American EFX0.113 mg
- LBA PRO Vanilla GlazeAll American EFX0.113 mg
- Lean Mass Peak 3-In-1 Muscle Fuel ChocolateInner Armour Sports Nutritionin a blend
- Lean Mass Peak 3-In-1 Muscle Fuel Dark ChocolateInner Armour Sports Nutrition · off the marketin a blend
- Lean Mass Peak Cookies & CreamInner Armour Sports Nutritionin a blend
- Leanology ChocolateTriVita1,314 mg
- Learning Factors Daily Nutrient Boost With Whey ProteinNatural Factors · off the market100 mg
- LeptiTrim6 NighttimeAnovitein a blend
- Licorice Extract WafersDouglas Laboratories · off the market100 mg
- Licorice GIPhysioLogics · off the market50 mg
- Licorice GI Deglycyrrhizinated Licorice ExtractPhysioLogics · off the market50 mg
- LiftLife Priority150 mg
- Lift CapsLife Priority150 mg
- Liga-TendCountry Life100 mg
- LigaZymeAllergy Research Group100 mg
- Light Yellow Oval Tablet Amino AcidBronson · off the market11 mg
- Liquid Advanced Amino AcidsCalifornia Academy of Health707.5 mg
- Liquid Amino AcidsWonder Laboratories55 mg
- Liquid Amino AcidsDC149 mg
- Liquid AminosPrecision Engineered · off the market3,704 mg
- Liquid AminosGood 'N Natural · off the market3,294 mg
- Liquid Aminos Wild Cherry FlavorPrecision Engineered3,622 mg
- Liquid Aminos Wild Cherry FlavorGood 'N Natural · off the market3,622 mg
- Liquid Collagen Complex Healthy Hair, Skin & Nails Delicious Grape FlavorRejuviCarein a blend
- Liquid Weight LossCalifornia Academy of Healthin a blend
- Lithium Orotate 5 +Tri-Magnesium Complex +Vitamin EWeyland Brain Nutrition500 mg