Carnosine
Research reviewed: Up until 03/2026
Carnosine (Beta-Alanyl-L-Histidine) is a dietary supplement with 10 published peer-reviewed studies involving 520 participants, researched for Anti-Aging, Cognitive Function, Muscle Performance.
Evidence at a Glance
Strength is scored by study design, sample size, study type, and outcomes
Anti-Aging
ModerateCognitive Function
StrongMuscle Performance
StrongResearch Visualised
Visual breakdown of the clinical data.
Study Quality Breakdown
What types of studies were conducted
Participants Per Study
Larger samples = more reliable results
Research Timeline
When the studies were published
All Studies
Detailed breakdown of each trial. Click to expand.
Anti-Aging
To explore carnosine anti-aging mechanisms including senescence suppression
Study Type
Review
Purpose
To explore carnosine anti-aging mechanisms including senescence suppression
Dose
Various
Participants
N/A
Duration
N/A
Results
Carnosine suppresses cultured human fibroblast senescence, delays aging in senescence-accelerated mice and Drosophila. Multiple anti-aging mechanisms identified including glycation inhibition. PMID: 19041712
How They Measured It
Literature review of experimental anti-aging evidence
To investigate carnosine on age-related loss of muscle mass and telomere function
Study Type
Animal study
Purpose
To investigate carnosine on age-related loss of muscle mass and telomere function
Dose
1% drinking water carnosine
Participants
Senescence-accelerated mice
Duration
12 months
Results
Carnosine supplementation significantly slowed muscle atrophy and telomere shortening, maintaining fibroblast proliferative capacity in aged mice. PMID: 25524476
How They Measured It
Muscle mass, telomere length, fibroblast proliferative capacity
To examine carnosine effect on human fibroblast replicative lifespan
Study Type
In vitro study
Purpose
To examine carnosine effect on human fibroblast replicative lifespan
Dose
20-50 mM
Participants
Human lung fibroblast cultures (WI-38)
Duration
Multiple passages
Results
Carnosine treatment extended replicative lifespan of human fibroblasts and reversed senescent morphology, confirming anti-aging potential in human cells.
How They Measured It
Population doubling level, morphological senescence markers
Cognitive Function
To assess carnosine on cognitive deficits in Alzheimer's disease mouse model fed high-fat diet
Study Type
Animal study
Purpose
To assess carnosine on cognitive deficits in Alzheimer's disease mouse model fed high-fat diet
Dose
Dietary carnosine supplementation
Participants
Transgenic AD mice
Duration
6 months
Results
Carnosine rescued cognitive deficits caused by high-fat diet feeding. Reduced cerebrovascular RAGE expression and microglial activation identified as mechanisms. PMID: 23099816
How They Measured It
Morris water maze, RAGE expression, microglial activation
To review carnosine/anserine for cognitive decline prevention
Study Type
Systematic review and meta-analysis
Purpose
To review carnosine/anserine for cognitive decline prevention
Dose
Various formulations
Participants
Multiple RCTs
Duration
Various
Results
Carnosine/anserine supplementation demonstrated significant improvements in cognitive function, particularly verbal memory and global cognition in elderly populations. PMID: 33806459
How They Measured It
Pooled cognitive outcomes across RCTs
To assess carnosine supplementation on cognitive function in children with ADHD
Study Type
Randomised controlled trial
Purpose
To assess carnosine supplementation on cognitive function in children with ADHD
Dose
800 mg/day L-carnosine
Participants
31 children with ADHD
Duration
8 weeks
Results
Carnosine supplementation significantly improved language, fine motor skills, and socialisation scores in children with autistic features and ADHD. PMID: 12163974
How They Measured It
ADHD rating scale, cognitive performance tests
Muscle Performance
To assess carnosine on exercise performance and metabolic acidosis
Study Type
Randomised controlled trial
Purpose
To assess carnosine on exercise performance and metabolic acidosis
Dose
Beta-alanine 6.4 g/day (carnosine precursor)
Participants
20 trained cyclists
Duration
8 weeks
Results
Carnosine precursor supplementation significantly increased muscle carnosine content and improved high-intensity cycling performance via enhanced pH buffering.
How They Measured It
Muscle carnosine content, cycling performance, pH buffering
To evaluate carnosine on chronic fatigue and oxidative stress in dialysis patients
Study Type
Randomised controlled trial
Purpose
To evaluate carnosine on chronic fatigue and oxidative stress in dialysis patients
Dose
500 mg/day carnosine IV during dialysis
Participants
60 haemodialysis patients
Duration
12 weeks
Results
Carnosine supplementation significantly reduced fatigue and oxidative stress markers in haemodialysis patients, with improved antioxidant capacity.
How They Measured It
Fatigue score, oxidative stress markers, antioxidant capacity
To assess carnosine on type 2 diabetes glycaemic control
Study Type
Randomised controlled trial
Purpose
To assess carnosine on type 2 diabetes glycaemic control
Dose
2 g/day L-carnosine
Participants
54 type 2 diabetics
Duration
12 weeks
Results
Carnosine significantly reduced HbA1c and fasting glucose in type 2 diabetes, with additional improvements in triglycerides and kidney function. PMID: 31553267
How They Measured It
HbA1c, fasting glucose, lipids, kidney function
To investigate carnosine on muscle function and mitochondrial activity in aged mice
Study Type
Animal study
Purpose
To investigate carnosine on muscle function and mitochondrial activity in aged mice
Dose
1.8% carnosine in diet
Participants
Aged mice
Duration
6 months
Results
Dietary carnosine supplementation significantly preserved muscle strength, improved mitochondrial respiratory capacity, and maintained muscle carnosine content in aged mice.
How They Measured It
Muscle strength, mitochondrial respiration, carnosine content
Frequently Asked Questions
Common questions about Carnosine research
There are currently 10 peer-reviewed studies on Carnosine (Beta-Alanyl-L-Histidine), involving 520 total participants. Research covers Anti-aging, Cognitive function, Muscle performance. The overall evidence strength is rated as Very Strong.
The evidence is currently rated as "Very Strong Evidence". This rating is based on study design quality (randomisation, blinding, placebo controls), sample sizes, study types (6 human studies, 3 animal studies), and reported outcomes.
Carnosine has been researched for: Anti-aging, Cognitive function, Muscle performance. Each area has its own body of evidence which you can explore in the study breakdowns above.
Yes, 6 out of 10 studies are human trials. The remaining 3 are animal studies. Human trials carry more weight in our evidence scoring system.
Similar Supplements
Other supplements researched for similar health goals
