L-Ornithine 667 mg®

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

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

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.

Serving Size: 1–3 Capsule(s) · 1–2 per day

Percent Daily Value (%DV) are based on a 2000 calorie diet.

• 

  Source Naturals L Ornithine

  Chinese Herbs Direct4.9(347)

  $10.35Lowest
• 

  L-Ornithine OAKG

  PureBulk4.5(10)

  $18.75
• 

  L-Ornithine - 120 gélules

  Naturitas4.2(5)

  $18.15
• 

  L-Ornithine 500 mg 120 Capsules

  NutritionHQ

  $23.49
• 

  Nutricost L-Ornithine

  Femologist4.8(562)

  $18.95

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  415 Loucks Rd, York, PA 17404

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  3872 Union Deposit Rd, Harrisburg, PA 17109

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  6455 Carlisle Pike, Mechanicsburg, PA 17050

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• Safety assessment of L-ornithine oral intake in healthy subjects: a systematic review

  H Yang, Y Kuramochi, S Sato, R Sakai, K Hayamizu - Amino Acids, 2025 - Springer

  … L-Ornithine (L-Orn) is a nonessential amino acid but has many physiological roles. Accordingly, L-Orn … Table 1 Characteristics of the included studies in systematic review [L-ornithine …

  20253 citations

• Oral intake of L-ornithine-L-aspartate is associated with distinct microbiome and metabolome changes in Cirrhosis

  A Horvath, J Traub, B Aliwa, B Bourgeois, T Madl… - Nutrients, 2022 - mdpi.com

  … Available treatment modalities to lower ammonia include L-ornithine-L-aspartate (… L-ornithine and L-aspartate in LOLA dissociate readily and are consecutively absorbed. L-ornithine …

  202215 citations

• miR-9394b from Lactobacillus paracasei extracellular vesicles targets iNOS to reprogram host NO-ornithine metabolism and ameliorate DSS-induced murine colitis

  H Ding, H Zhang, D Li, Z Hu, G Xiang, Q Nie… - npj Biofilms and …, 2026 - nature.com

  … Notably, a recent study demonstrated that gut-microbial L-ornithine synergizes with the biologic agent ustekinumab to improve treatment outcomes in Crohn's disease49. This pivotal …

  2026

• Submicron Particulate Matter (PM1)-Induced Pulmonary Injury and Epigallocatechin-3-Gallate Intervention: Modulation of Disorders in Amino Acid …

  Q Zhou, J Cao, X Lang, S Wang, X Feng… - Environmental …, 2026 - ACS Publications

  2026

• Deciphering underground decarboxylase activity towards Nε-modified lysine derivatives in enterobacteria.

  EF Aveta, P Vougioukas, F Qi, J Mehler, KI Behringer… - bioRxiv, 2026 - biorxiv.org

  … sources: 10 mM 155 CML, L-ornithine, L-lysine, NH4Cl, or no nitrogen. Growth was recorded every 30 min for 48 h at 156 37C. Maximum OD increase was calculated from three …

  20261 citations

• An observational study on the effect of L-ornithine-L-aspartate (LOLA) on the gut microbiome in liver cirrhosis. A single center phase 4 study

  D Habich, A Horvath, N Feldbacher, L Rebol, M Nepel… - Clinical Nutrition, 2025 - Elsevier

  … We showed 60 in a retrospective study that L-ornithine-L-aspartate (LOLA) was associated with improvement in 61 taxonomic composition of the microbiome. Here we prospectively …

  20251 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-08-23. DSLD Label ID: 295949. 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.