An essential branched-chain amino acid that supports muscle and energy.
Isoleucine is an essential amino acid and one of the three branched-chain amino acids, alongside leucine and valine. Your body cannot make it, so it comes from protein in food. It supports muscle protein, energy production and blood sugar handling.
Plasma isoleucine is part of a full amino acid profile and reflects protein intake and how your body handles the branched-chain amino acids. Low levels can reflect poor intake, while high levels are seen in some inherited metabolic conditions such as maple syrup urine disease. It is most useful read with leucine and valine.
Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.
Adult fasting plasma, guidance only:
| Analyte | Typical adult range (µmol/L) |
|---|---|
| Isoleucine | 37 to 94 |
Ranges vary by laboratory and assay and are read as part of the full amino acid profile.
Results are affected by recent diet, recent protein intake, fasting state and the time of day the sample is taken.
Read as part of the full plasma amino acid profile.
One annual membership, 100+ biomarkers, every result explained in plain language with a personalized action plan and concierge guidance.
