Your HFE genotype suggests you maintain higher circulating iron levels than most people. In the 5 months leading up to your marathon, iron saturation fell from 41% to 32% while your Resilience Score remained below your baseline as you trained 5 days per week. Six months after your race, your iron saturation rebounded by 29% and your Resilience improved by 16% after returning to 2 endurance sessions per week. This pattern suggests the demands of marathon training may have exceeded your body's ability to replenish the iron required to recover fully.

Your HFE genotype suggests you absorb iron more efficiently. Over the last 6 months, you tripled your intake of iron-rich foods by increasing red meat consumption to 3x a week and adding a daily organ supplement to your routine. During that same period, your ferritin increased 86%, your endurance score improved 18%, and your post-exercise heart rate recovered 27 seconds faster. Few people see that large of a biological response from a dietary change alone, suggesting iron availability may be playing a larger role in your performance than it does for the average person.

Your HFE genotype influences how efficiently your body manages iron during periods of growth and repair. Over the last 16 months, you gained 13 pounds of lean mass while reducing body fat by 7%. During that same period, Total Iron-Binding Capacity declined 19% and your Resilience Score improved 24%. This combination suggests your body became more efficient at managing iron levels during recovery, allowing a greater share of resources to support muscle growth and adaptation.