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Vitamins & minerals · FROM DR. PURSER’S TEACHING

Iron

Helps hemoglobin carry oxygen and supports many cellular processes.

Based on teaching by Dan Purser, MD. How we prepare these guides

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

Energy is not enough reason to add iron

Energy is not enough reason to add iron

Dr. Purser’s course connects iron with oxygen transport and energy while identifying it as a safety-sensitive mineral. This makes it different from a generic fatigue supplement: the relevant question is whether the person has evidence supporting replacement.

Putting the pieces together

The genetics reference also discusses HFE in relation to iron handling. A current blood count, ferritin and other clinician-selected iron studies can answer different questions, and an HFE result adds context rather than replacing those measurements. The plan must distinguish low intake or deficiency from overload concerns.

How supplementation is approached

Dr. Purser treats iron as a finding requiring laboratory and clinical context, not a general fatigue supplement. Review CBC, ferritin, transferrin saturation, blood loss and HFE-related concerns as appropriate. His course uses a separate iron strategy rather than applying the general high-frequency replenishment rules.

Food sources

Meat; seafood; lentils; beans; iron-fortified cereals. Vitamin C helps absorption of plant iron.

Supplement forms

Ferrous sulfate, fumarate and bisglycinate are examples. Compare elemental iron on the label.

A question to bring to your visit

What do the current iron studies show, and is supplementation appropriate given my history and genetic findings?

What to track and reassess

Track the ordered blood tests and digestive tolerance. At the replenishment review, reassess whether iron should continue; do not keep taking it indefinitely merely because energy remains low.

From starting support to follow-up

If you and your clinician start a CMA replenishment plan, you may add one new product at a time, often waiting 3–7 days to see how you feel. A check-in is usually planned near ten weeks during an approximately 100-day period. Follow your written plan for amounts and timing. At follow-up, you may continue, change, or stop each item. This timetable does not automatically end longer-term support.

Names you may see

Iron