The Organic Acids Test (OAT) by Great Plains Laboratories, is the most comprehensive profile of its kind. It evaluates yeast and bacterial overgrowth, vitamin and antioxidant levels, fatty acid metabolism, neurotransmitter levels, oxalates, mitochondrial function, oxidative stress, detoxification and much more. Organic acids are the by-products of human cellular activity, the digestion of foods and the metabolism of gastrointestinal flora. They are analysed in urine rather than blood serum because they are not extensively reabsorbed in the kidney tubules after glomerular filtration. Subsequent dietary and supplemental interventions following an OAT assessment have led to a number of reported improvements by patients and practitioners including reduced fatigue, improved energy, better concentration and decreased gastrointestinal symptoms. For this reason, organic acid testing is strongly recommended as an initial clinical screening tool.

The OAT is strongly recommended as the initial screening test.

The Microbial Organic Acids Test is ideal as a follow-up to the OAT and is often recommended by practitioners looking for a specific abnormality, to monitor certain microbial imbalances, or to assess protocol efficacy.

View the Great Plains OAT Guide

View the Great Plains OAT Instructions Recording By Dr William Shaw