Oxygen transport protein in red blood cells.

Regulates glucose levels and fatty acid breakdown.

Measures antioxidant status. Linked to age-related decline.

Muscle and nerve function. Essential for muscle function and recovery.

Supports muscle and immune health.

The primary stress hormone. Involved in energy and recovery.

Reflects omega-3 levels for inflammation reduction.

Reflects iron storage for oxygen transport.

Proportion of red blood cells.