Mitochondria – much more than just your cells’ powerhouses

The citric acid cycle: the heart of energy production

The actual production of energy occurs in several steps. In the citric acid cycle—often referred to as the Krebs cycle—nutrients from carbohydrates, fats, and proteins are converted into energy-rich intermediates. These intermediates supply electrons to the respiratory chain, where ATP is ultimately produced.

For this process, the body relies on B vitamins, magnesium, and coenzyme Q10 as essential cofactors. This connection illustrates why micronutrient intake is so directly linked to an individual’s energy levels.

When the Balance Is Upset: Causes and Consequences of Mitochondrial Disorders

Mitochondria are particularly sensitive to two types of stress:

• Oxidative stress caused by free radicals
• Nitrosative stress triggered by reactive nitrogen species

If these stresses persist over a prolonged period, mitochondrial dysfunction can occur, a condition now referred to as mitochondriopathy. Energy production then no longer reaches its full potential.
 
Possible symptoms of impaired energy metabolism may include:

• Persistent exhaustion, even leading to fatigue
• Muscle pain and stiffness
• Concentration problems and memory difficulties
• Migraines and headaches
• Heart rhythm disturbances
• Increased susceptibility to infections
• Sleep disturbances

Even in cases of HPU, it is worth keeping an eye on the mitochondria.

Why Mitochondria Are Under Particular Strain Today

Our increasingly sensory-overloaded world brings with it an unprecedented array of stressors that challenge our mitochondria on a daily basis:

• Environmental toxins in the air, water, and food
• Additives in food and cosmetics containing problematic ingredients
• Electromagnetic radiation from cell phones, Wi-Fi, and the dense digital infrastructure
• Chronic psychological stress
• Lack of sleep and insufficient recovery time
• Lack of physical activity

Such influences increase the need for protective mechanisms and repair processes. This often results in a significantly increased need for micronutrients, which can hardly be fully met by a conventional diet alone.

The foundation for healthy mitochondrial function

Mitochondrial health starts with your daily diet. A diet based on complex carbohydrates, high-quality proteins, and healthy fats—ideally fresh and unprocessed—supports cellular processes.
 
Mitochondrial energy production relies on a number of cofactors:

• B vitamins: This group includes vitamins B1, B2, B3, and B5, with B3 being particularly necessary for NAD⁺ production and B2 for FADH₂.
• Magnesium: This mineral is involved in nearly all steps of ATP production within the cell.
• Coenzyme Q10: As a molecule involved in electron transport, it possesses antioxidant properties, while the body’s own production declines with age.
• Antioxidants: These include glutathione, selenium, zinc, and manganese, which protect cells from oxidative damage caused by free radicals.
• Alpha-lipoic acid: This compound exhibits both water- and fat-soluble antioxidant effects.
• Omega-3 fatty acids: These fatty acids help keep mitochondrial membranes flexible and functional.
• L-carnitine: This compound transports fatty acids into the mitochondria, thereby enabling effective fat burning.

A personalized regimen can be a useful supplement to one’s diet. Guidance from an experienced therapist can help tailor the selection and dosage to suit your individual situation.

Inspiration from Everyday Life – Mild Stress as a Training Stimulus

There is a term in biology that aptly describes this principle: hormesis. It refers to the observation that a mild stress stimulus—when properly dosed—makes cells more resilient. Aerobic exercise, for example, stimulates the formation of new mitochondria in skeletal muscle, as the body’s own protective mechanisms are actively upregulated in the process.

Additional hormesis stimuli suitable for everyday life to boost cellular metabolism:

• Cold stimuli (cold showers, contrast showers)
• Intermittent fasting
• Moderate, regular exercise
• Alternating between heat and cold (e.g., sauna)
• Breathing exercises with a slight increase in CO₂

Important to note: These stimuli only have an effect when used in moderation. The subtle difference between “challenging” and “overwhelming” is of great importance.

Chronic Stress – The Silent Enemy of Mitochondria

It is not acute stress that places the greatest strain on our mitochondria, but rather chronic stress. During periods of chronic stress, the body’s need for micronutrients increases, while its ability to absorb and utilize them decreases: a cycle that develops gradually and often goes unnoticed until it is too late.

Typical signs of chronic stress may include:

    Persistent poor or shallow sleep
    Inner restlessness and tension without a recognizable trigger
    Ruminating thoughts that are difficult to interrupt
    Lack of body awareness, numbness, or a sense of detachment from oneself
    Lack of energy despite sufficient sleep
    Persistent feelings of coldness, especially in the hands and feet