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Vitamin D (25-OH)

Vitamin D (25-OH)

£34.65
This add-on measures vitamin D (25-OH), essential for bone strength, immunity, and mood balance. Low levels may cause fatigue, illness, or bone issues—even without obvious symptoms.
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About this test

  • Fatigue or low energy
  • Frequent colds, flu, or infections
  • Muscle weakness or aches
  • Bone or joint pain
  • Low mood or symptoms of depression
  • Poor wound healing
  • Hair thinning
  • Impaired immunity
  • Dental issues (e.g. tooth decay or gum problems)
  • Increased risk of fractures or osteoporosis
  • Difficulty concentrating (“brain fog”)
  • No symptoms at all in early or mild deficiency

Recommended for individuals experiencing fatigue, frequent infections, bone or muscle pain, or low mood. Ideal for those with limited sun exposure, darker skin tones, restricted diets (e.g. vegan), or conditions affecting nutrient absorption (e.g. coeliac or Crohn’s disease). Also suitable for individuals who are pregnant, breastfeeding, older adults, or anyone proactively monitoring bone, immune, or overall health.

  • Vitamin D deficiency (mild to severe)
  • Osteopenia or osteoporosis
  • Frequent infections or weakened immune function
  • Bone or muscle pain and weakness
  • Seasonal affective disorder (SAD) or low mood
  • Fatigue or low energy linked to poor calcium metabolism
  • Conditions affecting fat absorption (e.g. coeliac disease, IBD, cystic fibrosis)
  • Chronic kidney or liver disease impacting vitamin D metabolism
  • Increased vitamin D needs (e.g. pregnancy, ageing, reduced sun exposure)
  • Nutritional deficiencies due to restrictive diets or limited sun exposure

Symptoms

  • Fatigue or low energy
  • Frequent colds, flu, or infections
  • Muscle weakness or aches
  • Bone or joint pain
  • Low mood or symptoms of depression
  • Poor wound healing
  • Hair thinning
  • Impaired immunity
  • Dental issues (e.g. tooth decay or gum problems)
  • Increased risk of fractures or osteoporosis
  • Difficulty concentrating (“brain fog”)
  • No symptoms at all in early or mild deficiency

Who should be test

Recommended for individuals experiencing fatigue, frequent infections, bone or muscle pain, or low mood. Ideal for those with limited sun exposure, darker skin tones, restricted diets (e.g. vegan), or conditions affecting nutrient absorption (e.g. coeliac or Crohn’s disease). Also suitable for individuals who are pregnant, breastfeeding, older adults, or anyone proactively monitoring bone, immune, or overall health.

When to test

  • Vitamin D deficiency (mild to severe)
  • Osteopenia or osteoporosis
  • Frequent infections or weakened immune function
  • Bone or muscle pain and weakness
  • Seasonal affective disorder (SAD) or low mood
  • Fatigue or low energy linked to poor calcium metabolism
  • Conditions affecting fat absorption (e.g. coeliac disease, IBD, cystic fibrosis)
  • Chronic kidney or liver disease impacting vitamin D metabolism
  • Increased vitamin D needs (e.g. pregnancy, ageing, reduced sun exposure)
  • Nutritional deficiencies due to restrictive diets or limited sun exposure

What's measured

What gets tested