The mechanism
What Mitochondria Do
Every cell in the human body contains hundreds to thousands of mitochondria — tiny organelles responsible for producing adenosine triphosphate (ATP), the universal energy currency of life. Your body produces and consumes roughly its own weight in ATP every single day.
Mitochondria convert nutrients from food and oxygen from breathing into ATP through a complex process called oxidative phosphorylation. This process involves five enzyme complexes (Complexes I-V) in the electron transport chain, each of which can be damaged by infections, toxins, oxidative stress, or nutritional deficiencies.
When mitochondria are impaired, cells do not receive enough energy. The organs most affected are those with the highest energy demands: the brain, heart, muscles, and immune system. This explains why mitochondrial dysfunction produces such a wide range of symptoms — from cognitive impairment to cardiac dysfunction to immune failure.