Test Guide
Best Blood Test for General Wellness Over 40 (UK)
Your 40s and 50s are when small biochemical changes start to accumulate and matter. Hormone levels shift, cardiovascular risk climbs, metabolic flexibility narrows. A comprehensive baseline blood test in this decade is one of the highest-leverage health investments you can make. This guide explains what to test and which Chxhealth panels suit different needs.
Why test in your 40s and 50s?
Most chronic conditions develop silently in this decade and surface in your 60s. Cardiovascular disease, type 2 diabetes, fatty liver, kidney decline, osteoporosis risk and hormonal change all start showing on biomarkers before they cause symptoms.
Catching changes early gives you the longest runway to act through lifestyle, supplementation or medical intervention.
What to test for general wellness over 40
Cardiometabolic: Lipid profile, HbA1c, fasting glucose, fasting insulin (where included).
Organ function: Liver enzymes (ALT, AST, GGT, albumin, bilirubin), kidney function (creatinine, eGFR, urea).
Haematology: Full blood count, ferritin and iron studies.
Thyroid: TSH at minimum, ideally with free T4 and free T3.
Hormones: Testosterone and SHBG (men); FSH, LH, oestradiol, progesterone (women, particularly perimenopausal).
Nutrient status: Vitamin D, vitamin B12 and folate.
Inflammation: CRP.
Testing cadence
Once a year as a baseline. Re-test sooner if you make significant lifestyle changes or start medication you want to monitor.
Best Chxhealth panels for this
The Chxhealth panels below are designed for the markers discussed above. Each comes with a plain English PDF report, lab analysis by Randox (UKAS, ISO 15189), and the phlebotomy fee included in the price.
Standard Screen Plus
A broad general health screen with deeper organ and metabolic context than the basic Standard Screen.
Advanced GP2
A more comprehensive general practitioner-level panel suited to a deeper baseline.
Advanced GP3
The most extensive of the Advanced GP panels.
Longevity Panel
If your focus is healthy ageing, this panel is built around the markers most strongly linked to long-term health.
Related biomarker guides
Read more about the specific markers discussed in this guide:
FAQs
How often should I test in my 40s?
Annually is sensible for general baseline tracking. Every 3 to 6 months if you are making lifestyle changes or starting new medication.
Should men and women test the same things?
Most markers are universal (liver, kidney, lipids, glucose, thyroid, vitamins). Hormones differ: men typically test testosterone and SHBG; women test FSH, LH, oestradiol and progesterone, particularly during perimenopause.
Do I need to fast?
Yes for most comprehensive panels, particularly if testing lipids or glucose. Fast for 10 to 12 hours, water only.
Can a blood test predict whether I will develop diabetes or heart disease?
Blood tests surface the markers that contribute to risk calculation, but formal disease prediction requires clinical risk scoring (such as QRISK3) which combines biomarkers with age, blood pressure, family history and lifestyle. Chxhealth is a biomarker and genetic data provider. We do not diagnose, treat or prescribe. Our service supports your wellbeing journey alongside your healthcare professional.
About this guide. Educational content for general awareness. Chxhealth is a biomarker and genetic data provider. We do not diagnose, treat or prescribe. Our service supports your wellbeing journey alongside your healthcare professional. For medical advice about your health or results, please speak to a qualified clinician.