Let’s explore “intracellular testing”

Follow Dr. Purser’s teaching on folate, B12, sulfur pathways and antioxidant support around homocysteine.

Understand why Dr. Purser teaches glutathione, SOD and catalase as a connected antioxidant team.

Explore the history, production signals, nutrient context and monitoring that shape Dr. Purser’s hormone assessment.

Separate the gene, variant, measured value and clinical interpretation—and learn which questions to bring to your visit.

GSTO2 encodes glutathione S-transferase omega 2, a redox enzyme with dehydroascorbate reductase activity that connects glutathione chemistry with vitamin C recycling. It is a separate gene from GSTO1.

IL4 encodes interleukin-4, a cytokine involved in Th2 immune responses and antibody class switching, including pathways related to IgE. It operates alongside IL-5 and IL-13 rather than representing all allergic biology by itself.

See how homocysteine connects to cysteine and glutathione. Follow seven simple steps, explore the side routes, and tap a word or building block to learn more.

Why wait 90 to 100 days after your CMA? Because meaningful wellness changes deserve more than a few days before you decide whether they are working. A Cellular Micronutrient Assay can give you and your healthcare team information to consi

MTHFR gene variants can affect how your body processes folate and methylation, key factors in overall health. While they don’t directly cause blood sugar crashes, understanding your genetics, nutrition, sleep, stress, and nutrient status c

Ever remember something I said in a video but have no idea which video it was? We’ve been working on that. Introducing **Purser Wellness Explore** a new home for my teaching, organized so you can find the subjects that matter to you. MTH

Everyone is talking about collagen, protein, and vitamins. Almost no one is talking about one of your body's most important antioxidant defenses. Superoxide dismutase (SOD) is a naturally occurring enzyme that helps your body neutralize o

Explore folate, vitamin B9, one-carbon metabolism, anemia, homocysteine, SLC19A1, and differences between folate forms and transport pathways.