Diagnosis Symptoms of Vitamin B6 deficiency include: Mood disorders [PA-OAT] Irritability [PA-OAT] Anxiety [PA-OAT] Depression [PA-OAT] Confusion [PA-OAT] Muscle pains [PA-OAT] Low energy [PA-OAT] Fatigue [PA-OAT] Tests include: Urine Organic Acid Test for Xanthurenic Acid
References [PA-OAT]  Precision Analytical. Dried Urine Organic Acids Test FULL TEXT Accessed: 6/30/2018..