Remembering effortless energy after crushing workouts and thinking with crystal clarity feels distant for many people now stuck running on half-charged batteries.
Cabinets overflow with 20 supplements while confusion grows about whether any actually work.
In a recent video, Dr. Ashley Frawley, a board-certified primary care physician, explained how pouring supplements into a system with damaged mitochondria is like fueling a car with a broken engine.
She breaks down exactly where energy comes from, where production fails, and which interventions like NAD, CoQ10, fasting, and cold exposure actually target specific problems.
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Understanding Mitochondrial Architecture
Mitochondria shape matters tremendously. Picture a bean with two distinct walls: a smooth outer membrane and heavily folded inner membrane.
The outer wall functions as your energy factory’s front door—porous and fluid with tiny openings allowing fuel, nutrients, and signals passage. Between these walls sits the inner membrane space, functioning like a loading dock.
When Doors Rust Shut
Chronic inflammation, aging, insulin resistance from obesity or diabetes, and poor metabolic health change outer membrane structure, stiffening it considerably.
Critical signals struggle getting messages across. Dr. Frawley calls this signal interference.
Sometimes fatigue doesn’t start because your mitochondria can’t make energy. Sometimes it starts because of this.
Before supplements like CoQ10 and NAD enter the conversation, ensuring the front door actually works becomes paramount.
Changing lipid composition in this wall and stopping structural degradation from inflammation proves essential. Dr. Frawley recommends:
- Antioxidants: Berries and colorful foods
- Omega-3 fatty acids: Sardines or supplements with high EPA and DHA
- Phosphatidylcholine: Primary structural ingredient for mitochondrial membranes
Where Energy Gets Won or Lost
The inner membrane bears no resemblance to its smooth outer counterpart. Heavily wrinkled with folds called cristae, it resembles an accordion.
This design intentionally creates massive surface area from relatively small membrane real estate. Energy production engines live here, and more folds equals more engines, more ATP, more energy.
Research shows healthy, metabolically active mitochondria display beautifully organized inner membranes with deep folds. Older, stressed, damaged mitochondria flatten out—the accordion loses shape and can’t make music anymore.
Exercise Dominates Supplements
Consistent exercise stands as one of the strongest signals known for improving mitochondrial structure over time.
Exercise isn’t all about looking good.
Even perfectly folded cristae can’t generate energy alone. They require the factory assembly line—the electron transport chain.
The Five-Station Assembly Line
The electron transport chain consists of five stations (complexes 1-5) living on that folded inner membrane. Understanding this explains how CoQ10 supplements actually function.
When food gets consumed, bodies break it down into NADH and FADH2—energy delivery trucks. The H represents hydrogen atoms containing one proton and one electron.
NADH arrives at complex one and drops electrons. Electrons continue moving through the chain while protons get separated and pumped across the inner membrane, creating stored potential energy like pumping water uphill into a reservoir.
Eventually, protons rush back through complex five—a turbine spinning and creating ATP as electrons travel down the line.
Where Supplements Enter
Complex one sustains most damage from age and inflammation. CoQ10 helps shuttle electrons through this assembly line, keeping traffic moving through the power plant.
Statins block natural CoQ10 production, explaining why supplementation gets recommended for people taking cholesterol medications.
Methylene blue picks up electrons stuck in damaged complexes and continues moving them along—remarkably cool science.
The Mitochondrial Matrix
Past the inner membrane lies the mitochondrial matrix—the soup in the middle where food actually gets processed.
The matrix contains the Krebs cycle (citric acid or TCA cycle) where food breaks down into NADH and FADH2. Food enters, the Krebs cycle breaks it apart, loading delivery trucks with cargo for the engines.
NAD supplementation supports this process. NAD eventually becomes NADH—one of the main energy delivery trucks feeding the electron transport chain.
Mitochondrial DNA Damage
Mitochondria possess their own DNA despite living outside the cell nucleus. Damage accumulates here as energy production engines leak about 1-2% of oxygen, creating reactive oxygen species (ROS)—tiny sparks flying off machinery.
Small amounts prove normal and necessary for signaling and adaptation. But constant sparks from excessive stress, illness, inflammation, poor diet, and bad sleep start fires everywhere.
Over time, excessive ROS damages mitochondrial DNA, cristae, and engine parts. Aging becomes a vicious cycle: more damage creates more dysfunction, more dysfunction creates more ROS.
Mitophagy and Biogenesis
Mitochondria aren’t permanent. Bodies should constantly kill broken ones and build new ones through mitophagy—literally “eating mitochondria.”
Cells identify damaged mitochondria, tag them for removal, break them apart, and recycle useful pieces. Controlled demolition.
As people age, become sedentary, and develop metabolic dysfunction, cleanup slows. Broken mitochondria stick around creating inflammatory byproducts—malfunctioning equipment collecting paychecks and producing more dysfunctional mitochondria.
Building New Mitochondria
Mitochondrial biogenesis creates new power plants. The master switch controlling this process is PGC1 alpha.
When activated, cells receive the message to build more mitochondria. Exercise, fasting, cold exposure, higher NAD levels, and certain peptides all activate mitochondrial biogenesis.
Urolithin A, a compound produced through gut bacteria when eating pomegranates, helps bodies identify and remove mitochondria that shouldn’t remain. Researchers study its effects on mitophagy specifically.
Targeting Different Machine Parts
No single “best” mitochondrial supplement exists—only different interventions targeting different machine components:
- Membrane problems: Omega-3s, phosphatidylcholine, improved metabolic health
- Flattening inner membrane: Exercise proves critical (peptides can stabilize too)
- Slowing engines: CoQ10, riboflavin, potentially methylene blue
- Matrix support/NAD needs: NMN supplements
- Quality control issues: Urolithin A, fasting, cold exposure, exercise
Understanding mitochondrial anatomy transforms random supplement throwing into precise, targeted interventions for specific problems.
