A New Blood Test Uses 8 Amino Acids to Estimate Your Biological Age

Based on: Amino acid-based biological age clock and its implications for human health and aging.

Moderate Evidence·Journal Article·Nature communications·May 2026

Scientists built a tool called AmiAge that estimates how old your body really is by measuring 18 amino acids in your blood. They then simplified it down to just 8 amino acids. People whose AmiAge was higher than their actual age tended to be frailer, had shorter telomeres, and got age-related diseases more often.

Key Insight

This study suggests amino acid levels may become a simple way to track biological aging in routine bloodwork.

Original Paper

Ding K, Xu R, Chao X, Li M, Sun T, Yang T, Zhu M, Peng X, Liu R, Luo P, Tian G, Lin Y, Xie G, Zheng X, Zhang L, Jia W, Chen T

Nature communications··Over 280,000 people aged 1 to 89

Conflict of Interest Disclosure: Authors declare no competing interests.

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Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.