Green-lipped mussel

Green-lipped mussel in dog joint supplements: what the research shows, why powders and extracts differ, and what to check on a product label.

Ingredient Directory›Green-lipped mussel

Ingredient & nutrient profile

Green-lipped mussel

A marine ingredient studied in canine joint care. The exact preparation matters as much as the name on the label.

OtherDog
GLM
Green-lipped musselNutritional role • Research • Practical context
SpeciesDogs: current evidence scope
ScopeIngredient and nutrient context
AssessmentInitial evidence summary
Sources checked23 September 2026
Nutritional role

What it contributes

Green-lipped mussel (Perna canaliculus) is a shellfish used in powders, extracts and formulated foods. Whole-mussel material and concentrated lipid extracts are different preparations. A milligram amount cannot be compared fairly without knowing which form it describes. [1, 2]

Species and formulation

Read it in context

This initial profile focuses on dogs because our linked full-text appraisal concerns canine joint disease. It does not establish the same benefit in cats or other species. Check whether evidence concerns a single preparation, a combination supplement or a complete food. [1]

Research

What the evidence shows

In Pollard et al. (2006), more dogs improved on the tested extract after 56 days than on placebo: 67% versus 41% (P=.018). However, the cumulative clinical-score comparison was P=.053, which did not meet the usual .05 threshold. All dogs received extract in the later phase, so that phase lacked a placebo control. The product supplier funded the trial. [1]

Limits and safety

Before changing the diet

No adverse effects attributable to the tested extract were identified in that trial. This does not establish long-term safety, rule out rare reactions or justify replacing a dog’s existing joint-care plan. The trial does not provide a universal amount for every powder or extract. [1]

Food labels

Questions worth asking

Ask for the scientific species, the preparation used, the amount per daily serving and whether the finished formulation matches the cited research. An ingredient appearing near the end of a food label does not tell you whether a trial-comparable amount is supplied.

Connected evidence

Explore the study

Study links follow your species selection. A shared nutrient profile may discuss more than one species.

Dogs · Randomised trial · Full-text appraisalGreen-lipped mussel extract for dogs with joint diseaseRead the study summary, methods and limitations.
Sources

References and review scope

  1. Pollard et al. (2006): original clinical trial
  2. Eason et al. (2018): veterinary review and preparation context

This is an initial, source-linked overview, not a systematic review or a product endorsement. Last reviewed 23 September 2026. Next planned review: 23 December 2026.

Product connections

Finding a matching product

No matching product has yet been verified in our directory for this ingredient. A similar-sounding ingredient name is not enough to confirm a match, and ingredient research does not prove the effectiveness of a finished product.

Browse dog product profiles

Research on this ingredient

Dog

Green-lipped mussel extract and activity in working farm dogs

One study with 2 reviewed arm or dose connection(s).

Arm full_fat_glm_180_mg_daily

Green-lipped mussel extract and activity in working farm dogs

Direct · dog. Working farm dogs with musculoskeletal abnormalities; 32 enrolled and 27 included in analysis.

Tested form: Full-fat green-lipped mussel extract. Dose: 180 mg/day (Daily oral supplementation; dose subgroup allocation not established in reviewed abstract). Duration: 8 weeks per treatment period with a 4-week washout in a blinded placebo crossover trial. Comparator: Placebo in the crossover trial.

Measured finding: Some peak-activity and interquartile-range measures changed; the 75th-percentile activity measure did not change. The abstract does not isolate every outcome by daily-dose subgroup.

Limitations: Small analysed sample; working dogs with musculoskeletal findings; specific full-fat extract. Activity measures are not interchangeable with demonstrated clinical pain relief.

Abstract reviewed · Checked 2 October 2026 · Evidence.pet study summary · Primary source

Arm full_fat_glm_220_mg_daily

Green-lipped mussel extract and activity in working farm dogs

Direct · dog. Working farm dogs with musculoskeletal abnormalities; 32 enrolled and 27 included in analysis.

Tested form: Full-fat green-lipped mussel extract. Dose: 220 mg/day (Daily oral supplementation; dose subgroup allocation not established in reviewed abstract). Duration: 8 weeks per treatment period with a 4-week washout in a blinded placebo crossover trial. Comparator: Placebo in the crossover trial.

Measured finding: Some peak-activity and interquartile-range measures changed; the 75th-percentile activity measure did not change. The abstract does not isolate every outcome by daily-dose subgroup.

Limitations: Small analysed sample; working dogs with musculoskeletal findings; specific full-fat extract. Activity measures are not interchangeable with demonstrated clinical pain relief.

Abstract reviewed · Checked 2 October 2026 · Evidence.pet study summary · Primary source

Products listing or mentioning this ingredient

22 products linked through reviewed ingredient occurrences from manufacturer declarations or partial editorial summaries. Whole-label verification may remain pending. An ingredient’s presence alone does not establish a nutritional outcome.

  • Lily’s Kitchen Chicken with Cod Paté for Mature Cats Lily’s Kitchen Chicken with Cod Paté for Mature Cats, editorial ingredient summary 2026-09-24; United Kingdom; partial summary Cat; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Lily’s Kitchen Turkey & Trout Dry Food for Senior Dogs Lily’s Kitchen Turkey & Trout Dry Food for Senior Dogs, editorial ingredient summary 2026-09-24; United Kingdom; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Medium/Large Breed Free Range Chicken McAdams Medium/Large Breed Free Range Chicken - Medium/Large Breed Free Range Chicken (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Medium/Large Breed Free Range Chicken & Salmon McAdams Medium/Large Breed Free Range Chicken & Salmon - Medium/Large Breed Free Range Chicken & Salmon (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Medium/Large Breed Free Range Turkey McAdams Medium/Large Breed Free Range Turkey - Medium/Large Breed Free Range Turkey (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Puppy Free Range Chicken McAdams Puppy Free Range Chicken - Puppy Free Range Chicken (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Raw Infused Medium/Large Breed Free Range Turkey McAdams Raw Infused Medium/Large Breed Free Range Turkey - Raw Infused Medium/Large Breed Free Range Turkey (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Raw Infused Small Breed Free Range Turkey McAdams Raw Infused Small Breed Free Range Turkey - Raw Infused Small Breed Free Range Turkey (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Senior / Light Free Range Chicken McAdams Senior / Light Free Range Chicken - Senior / Light Free Range Chicken (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Small Breed Free Range Chicken McAdams Small Breed Free Range Chicken - Small Breed Free Range Chicken (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Small Breed Free Range Chicken & Salmon McAdams Small Breed Free Range Chicken & Salmon - Small Breed Free Range Chicken & Salmon (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • McAdams Small Breed Free Range Turkey McAdams Small Breed Free Range Turkey - Small Breed Free Range Turkey (UK); UK; partial summary Dog; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Betta Granules Sera Betta Granules, editorial ingredient summary 2026-09-24; ; partial summary Bettas, Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Flora Flakes Sera Flora Flakes, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Immune Probiotic Granules Sera Immune Probiotic Granules, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Insect Granules Sera Insect Granules, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Plankton Color Tabs Sera Plankton Color Tabs, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera San Color Flakes Sera San Color Flakes, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera San Color Granules Sera San Color Granules, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Vipachips Wafers Sera Vipachips Wafers, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Vipagran Granules Sera Vipagran Granules, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope
  • Sera Vipan Flakes Sera Vipan Flakes, editorial ingredient summary 2026-09-24; ; partial summary Fish; Source data captured; Label verification pending; Evidence applicability requires the stated ingredient and study review scope