Energy & Vitality

Body Parts and Systems Involved

Blood & Oxygen Transport

• Red blood cells – Carry oxygen via haemoglobin.

• Bone marrow – Produces red blood cells.

• Lungs – Supply oxygen to the blood.

• Heart & circulatory system – Deliver oxygen and nutrients to tissues.

Cellular Energy Production

• Mitochondria – Convert nutrients into ATP (energy).

• Muscles – Store and utilise energy for movement.

• Nervous system – Coordinates energy demand and distribution.

Key Functions

Oxygen Delivery

• Adequate haemoglobin levels ensure oxygen reaches every cell.

• Iron, vitamin B12, and folate are essential for red blood cell formation.

Energy Metabolism

• Macronutrients (carbohydrates, fats, proteins) broken down to produce ATP.

• Coenzymes like B vitamins, magnesium, and coenzyme Q10 enable mitochondrial energy production.

Hormonal Regulation

• Thyroid hormones regulate metabolic rate.

• Cortisol influences energy availability under stress.

Nutrients Needed for Energy Production

• Iron – Key component of haemoglobin for oxygen transport;

• Vitamin B12 & Folate – Required for red blood cell formation;

• Vitamin C – Enhances iron absorption;

• B Vitamins (B1, B2, B3, B5, B6) – Coenzymes in energy metabolism;

• Magnesium – Required for ATP activation;

• Coenzyme Q10 – Supports mitochondrial ATP production;

• Protein – Provides amino acids for tissue repair and enzymes.

Interconnections with Other Systems

• Digestive System – Absorbs energy-producing nutrients from food;

• Endocrine System – Hormones regulate metabolism and energy use;

• Cardiovascular System – Circulates oxygen and nutrients;

• Respiratory System – Supplies oxygen for energy production;

• Musculoskeletal System – Uses energy for movement and physical strength.

Common Symptoms of Low Energy

• Persistent fatigue;

• Shortness of breath;

• Pale skin;

• Dizziness or light-headedness;

• Poor concentration and brain fog;

• Weakness or poor exercise performance;

• Low stress tolerance.

Investigation Methods

See what Testing can be performed

• Functional and Medical Tests

  
  

  • Full blood count (haemoglobin, haematocrit, red blood cell indices);

  • Iron studies (serum ferritin, transferrin saturation);

  • Vitamin B12 and folate levels;

  • Thyroid function tests;

  • Blood glucose testing;

  • Mitochondrial function and organic acids testing;

  • Inflammatory markers (CRP, ESR).

    
    

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