Carnosine
TL;DR
Dipeptide found in muscle and brain. Acts as an intracellular buffer, antioxidant, and anti-glycation agent. Levels decline with age. May be supplemented directly or via beta-alanine.
Safety: Excellent. Very well-tolerated. No significant adverse effects reported at standard doses.
Cost: approximately $15-25/month.
What the research says
Anti-glycation properties may reduce AGE formation relevant to diabetic complications. Some evidence for improved glucose metabolism. Limited but promising.
Concentrated in brain tissue. Antioxidant and anti-glycation effects theoretically neuroprotective. Limited human cognitive data.
Anti-glycation properties theoretically relevant to diabetic nephropathy. Very limited clinical data.
Carnosine on Amazon
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Safety & practical info
Very well-tolerated. No significant adverse effects reported at standard doses.
No documented drug interactions.
Moderate cost.
Sources for this page include published meta-analyses, systematic reviews, and NIH dietary supplement fact sheets. All claims reflect the evidence as of early 2026.
This is not medical advice. Consult your healthcare provider before starting any supplement, especially if you take medications.