Part 3: Vitamin B12 insufficiency is common, especially in people 55 or older, vegetarians, or anyone on acid blocking medication. At Metametrix, we look at MMA in urine to evaluate B12 need. Serum B12 has a low predictive value for actual vitamin B12 deficiency. Elevated MMA identifies B12 as insuf... [More]

Part 2: Glutathione is made from three amino acids: cysteine binds with glycine (Gly) and glutamine (Glu). Glutathione is a primary recycler of antioxidants—it’s important. Normally you make enough, but if you have an issue, like oxidative stress or detoxification demands, it can dramati... [More]

  Patterns within the Organix Profile: Many of the analytes in the Organix Profile have more than one meaning, especially in combination with other analytes. There are patterns of elevated analytes you can learn to recognize and which can help you more specifically identify and understand yo... [More]

Food allergies, and the fact that people think they have them, are all over the news because of a big JAMA study that recently came out. I wanted to add my two cents and identify what the study actually assessed. JAMA reviewed 72 studies that used the skin prick test, food-specific IgE blood tests, ... [More]

If you’ve been to Metametrix.com recently, you may have noticed some changes in our website. Several changes were made to the Learning Center, to help organize the wealth of educational material Metametrix has created over the years to support Integrative and Functional Medicine and the import... [More]