1,25-dihydroxyvitamin D (calcitriol)
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
This panel evaluates vitamin, mineral, and metabolic markers linked to nutritional status. It helps detect hidden deficiencies affecting energy, immunity, and overall health.
Turnaround time
2-3 days
Biomarkers count
44
Professional phlebotomist comes to you
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Visit our clinic for your test
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SelectedThe Nutritional Health panel is a comprehensive blood test designed to assess vitamin levels, mineral balance, iron status, metabolic function, thyroid health, liver function, and digestive absorption.
This profile includes:
• Full Blood Count (FBC)
• Albumin and Adjusted Calcium
• Iron studies (Iron, Ferritin, TIBC, Transferrin, Saturation)
• Folate, Vitamin B12, Vitamin D, Zinc, Magnesium
• Cholesterol profile and triglycerides
• Glucose, HbA1c, Insulin
• Liver Function Tests and Bilirubin
• Thyroid panel with antibodies (TSH, FT4, FT3, Anti-TPO, Anti-Tg)
• Anti-Tissue Transglutaminase antibodies (coeliac screening)
• Pancreatic Amylase
It helps identify whether symptoms are linked to poor nutrient absorption, deficiency, or metabolic imbalance.
Nutritional deficiencies are a very common hidden cause of fatigue, hair loss, low immunity, brain fog, poor recovery, and digestive problems.
Reasons for testing include:
• Persistent tiredness
• Hair thinning or brittle nails
• Digestive issues or bloating
• Suspected coeliac disease
• Poor diet or restrictive diet
• Thyroid symptoms
• Low mood or poor concentration
• Recurrent infections
Expanded benefit explanation
Nutrition affects every system in the body. This panel helps identify whether symptoms stem from deficiency, absorption problems, or metabolic issues.
We offer two UK-wide testing options:
Clinic testing
• Choose nearest UK clinic
• Blood sample collected
• Laboratory analysis performed
• Results securely returned
Home visit (+£60)
• Phlebotomist visits you
• Blood sample collected safely
• Sample sent to lab
• Results delivered confidentially
Low vitamins, minerals, iron, or thyroid hormones may explain fatigue and poor health.
Nutritional and metabolic balance appear stable.
Elevated glucose, liver markers, or antibodies may indicate metabolic or absorption issues.
Simple steps to get your results
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsFollow these guidelines for accurate results
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
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