L-Methionine®

Amino Acids & Protein

Brand: Source Naturals

PowderAmino acid/ProteinOff Market
Click to view full label

Net Contents

3.53 Ounce(s)

Serving Size

1.5 Gram(s)

Servings Per Container

66

Supplement Form

Powder

Bar Code (UPC/SKU)

0 21078 00145 4

Product Version

SN0145 REV E201 FG-104779

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

  • Milk
  • Egg
  • Wheat
  • Soy
  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1.5 Gram(s) · 1 per day

IngredientAmount Per Serving
Calories5 Calorie(s)
L-Methionine1.5 Gram(s)

Not Present

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use: 1/4 to 1/2 teaspoon daily between meals. If you experience stomach irritation, take with meals.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Storage

Storage

Store in a cool, dry place.

Formulation

Formula re: Contains

L-Methionine is an essential sulfur-containing, free-form amino acid. It contributes to the synthesis of S-adenosyl-L-methionine (SAMe), which is necessary for normal brain function, and L-cysteine, which is a component of glutathione, an important antioxidant molecule in the body. L-Methionine is also a transporter of the antioxidant mineral, selenium.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.

Formulation re: Other

Free-form

FDA Statements

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

Copyright SOURCE NATURALS, INC.

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$8.66 – $67570.00· 25 listings
  • Source Naturals SAMe 400 mg 30 Tablets

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    $30.95
  • Pure Encapsulations L-Methionine 60 Capsules

    Nedley Health4.4(18)
    $21.00
  • Source Naturals Wellness Formula

    PureFormulas.com3.9(2500)
    $9.79
  • Animed Pure Dl-Methionine Powder for Horses

    Med-Vet International4.9(11)
    $13.94
  • L-Metionina 500 Mg 30 Vcaps

    Village Green Apothecary4.8(160)
    $19.19
  • Source Naturals Mega-One Multivitamin with Minerals

    Instacart4.7(150)
    $32.99
  • Douglas Laboratories L-Methionine

    boulevardcompounding.com3.7(3)
    $29.50
  • L-Methionine - High Purity Sulfur-Containing Essential Amino Acid 25g

    Biofargo
    $12.00

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

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  • Prosport GmbH - Supplements / Lagerverkauf

    4.9 (134)

    Vitamin & supplements store

    Carolus-Magnus-Straße 25, 45356 Essen

  • Arena Supplements Fitness-Shop für Sportnahrung

    5.0 (251)

    Vitamin & supplements store

    Leineweberstraße 10, 45468 Mülheim an der Ruhr

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    5.0 (214)

    Sporting goods store

    Annastraße 68A, 45130 Essen-Stadtbezirke II

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    5.0 (146)

    Vitamin & supplements store

    Kölner Landstraße 119, 40591 Düsseldorf

  • Musclesupplement | Fitness Shop Dortmund City

    4.8 (131)

    Vitamin & supplements store

    Brückstraße 20-26, 44135 Dortmund

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    5.0 (133)

    Vitamin & supplements store

    Herner Str. 21, 44787 Bochum

  • Supplements - Dortmund Sportnahrung Fitness und Bodybuilding Shop

    4.5 (21)

    Vitamin & supplements store

    Lange Str. 54, 44137 Dortmund-Innenstadt-West

  • Natural-Fitness24 Sportnahrung Shop für Fitness & Bodybuilding Supplements

    5.0 (78)

    Vitamin & supplements store

    Horster Str. 34, 45897 Gelsenkirchen-Nord

Research & Studies

  • Role of S-adenosyl-L-methionine in the treatment of depression: a review of the evidence

    D Mischoulon, M Fava - The American journal of clinical nutrition, 2002 - Elsevier

    … dietary supplement in 1998–1999. Given its range of activity, SAMe has been proposed as a potential treatment for many medical … SAMe is synthesized from the amino acid l-methionine …

    2002489 citations
  • Efficacy of the Dietary Supplement S-Adenosyl-L-Methionine

    CW Fetrow, JR Avila - Annals of Pharmacotherapy, 2001 - journals.sagepub.com

    … dietary supplement until sufficient discussion has taken place with their primary healthcare … Healthcare providers and consumers should likely temper their enthusiasm for this dietary …

    200163 citations
  • Methionine production—a critical review

    T Willke - Applied microbiology and biotechnology, 2014 - Springer

    … from natural biological sources. … 5 g/L methionine are achievable without using genetically modified organisms (GMOs). The highest l-methionine concentration from natural sources …

    2014240 citations
  • Effect of a food supplement containing L-methionine on urinary tract infections in Pregnancy: a prospective, multicenter observational study

    M Passaro, G Mainini, F Ambrosio… - … Integrative Health, 2017 - journals.sagepub.com

    … The present study assessed the effectiveness of a food supplement containing L-methionine and Hibiscus sabdariffa L. and Boswellia serrata Roxb. extracts as a treatment for …

    20178 citations
  • Contribution of dietary methionine to gut health and its related diseases: implications for precision nutrition

    Y Yang, Y Xie, M Lu, Y Xu, R Zhao - Critical Reviews in Food …, 2026 - Taylor & Francis

    … L-methionine supplementation maintains the integrity and barrier function of the small-intestinal mucosa in post-weaning piglets. Amino Acids 46 (4):1131–42. doi: 10.1007/s00726-014-…

    20263 citations
  • The role of methionine on metabolism, oxidative stress, and diseases

    Y Martínez, X Li, G Liu, P Bin, W Yan, D Más… - Amino acids, 2017 - Springer

    … (2017) reported that it may be necessary to supplement the diet with essential nutrients (… the nutritional requirements change according to the health of the individual in question. Brain-…

    2017744 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-11-22. DSLD Label ID: 274781. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.