Blood values and what they measure
Blood values are measurable substances in your blood. Together they sketch a picture of your energy, recovery and capacity. Look up a value and check its reference range. Each one explains what a high or low result says about your condition.
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Vitamin B12
Vitamin B12 is considered important for oxygen transport via red blood cells and energy metabolism during exercise. Active individuals may have increased requirements.
Vitamin B2 (Riboflavin)
Vitamin B2 (riboflavin) is considered essential for energy metabolism and antioxidant defence during intense physical activity. Active individuals may have increased requirements.
Vitamin B3 (Niacin)
Vitamin B3 (niacin) is considered a key precursor to NAD+, which may support energy production and cellular recovery during physical training. Active individuals may have increased metabolic demands for niacin.
Vitamin B6
Vitamin B6 is considered essential for amino acid metabolism during exercise, which may directly support muscle protein synthesis and recovery. Active individuals may have increased requirements.
Vitamin B7 (Biotin)
Vitamin B7 (biotin) is considered important for macronutrient metabolism during physical performance. It may support efficient energy utilisation from fats, proteins, and carbohydrates.
Vitamin C
Vitamin C is considered a critical antioxidant for active individuals, potentially supporting immune function during intense training and aiding tissue repair and recovery.
Vitamin D (25-OH)
Your vitamin D level tells you how much vitamin D your body has in store, and that store drops between October and March, exactly the months when your training load peaks.
Vitamin E
Vitamin E is a powerful antioxidant that may support exercise recovery by reducing oxidative stress from intense training. Monitoring levels can help optimise your recovery strategy.
Vitamin K1
Vitamin K1 supports bone mineralisation and blood clotting — both essential for active individuals. Adequate levels may help reduce fracture risk and support recovery from training.
Zinc
Zinc is vital for muscle repair, immune defence, and protein synthesis during recovery. Active individuals may have increased zinc needs due to sweat losses and higher turnover.
aPTT
aPTT (Activated Partial Thromboplastin Time) measures how long it takes blood to form a clot through the intrinsic and common coagulation pathways.
b-hCG (Human Chorionic Gonadotropin)
Beta-hCG (human chorionic gonadotrophin) is the hormone produced by an implanting pregnancy.
eGFR (Estimated Glomerular Filtration Rate)
Your eGFR value tells you how many millilitres of blood your kidneys filter clean per minute, and in anyone who trains seriously that number regularly reads too low with nothing wrong with the kidneys. eGFR stands for estimated glomerular filtration rate: it is not a measurement but a calculation from your creatinine, your age and your sex.
hs-CRP (High Sensitivity CRP)
hs-CRP helps active individuals monitor cardiovascular inflammation beyond training stress. Keeping chronic inflammation low supports long-term heart health alongside peak performance.