Nonessential amino acid shuttle
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About Alanine
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About Alanine
Overview and History
Alanine (L‑alanine) is a nonessential, protein-building alpha‑amino acid produced from pyruvate by transamination. It is abundant in muscle and blood and functions as a flexible building block for proteins and a carrier of nitrogen and carbon between tissues.
Biologically, alanine participates in amino group transfer and the muscle–liver exchange of substrates that support glucose production and nitrogen disposal. Clinically, plasma alanine is measured as part of amino acid profiling to help characterize protein metabolism, cellular nitrogen balance, and broader metabolic patterns.
Interpreting Highs and Lows
Higher-than-typical alanine levels in blood can reflect increased muscle protein breakdown, elevated release from tissues, enhanced amino acid mobilization for glucose production, or altered hepatic amino acid handling. Lower-than-typical alanine can appear with low protein intake, greater tissue uptake or use of alanine for energy or repair, or shifts in amino acid pools due to metabolic demand. Interpretation depends on the full Nutrient Zoomer profile—patterns across amino acids, vitamins, and minerals provide essential context before drawing conclusions.
Featured Test
Alanine is included in the Nutrient Zoomer because it signals how the body moves nitrogen and carbon between tissues and supports glucose and energy pathways. As one of the core measured amino acids, alanine helps reveal protein turnover patterns and complements vitamin, mineral, and fatty‑acid data to guide personalized nutrition decisions.
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Mary Beth Augustine
DCN, RDN, FAND- Lead Clinical Educator
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MS, RDN, LD, CTTS, CGP- Clinical Educator
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MSc- MHNE- Clinical Educator
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MS, CNS, LDN, FDN- Clinical Educator
Adair Anderson
MS, RDN, LDN- Clinical Educator
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DCN, CNS, LDN- Clinical Educator
Jason Barker
ND- Clinical Educator
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ND- Clinical Educator
Dana Filatova
DCN, CNS, LDN- Clinical Educator
Jessy Dhanjal
ND- Clinical Educator
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MS, LDN, CNS, CKNS- Clinical Educator
