Biomarker Glossary
Blood Test Guides
Twelve focused guides to help you choose the right Chxhealth panel for your goal. Each guide explains what the most relevant biomarkers do, when to test, how to interpret results, and which Chxhealth panels match. All samples are analysed by Randox, a UK laboratory accredited by UKAS to ISO 15189.
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.
All guides
- Best blood test for weight loss & GLP-1. Baseline biomarkers before and during weight loss programmes including GLP-1 medications.
- Best blood test for fatigue & low energy. Iron, thyroid, B12, vitamin D and the common biomarker causes of persistent tiredness.
- Best blood test for testosterone (men 30+). Total testosterone, SHBG, free androgen index — what to test and when.
- Best blood test for women's hormones. Cycle timing, perimenopause, PCOS — which markers and when.
- Best blood test for fertility planning. AMH, FSH, LH, oestradiol, progesterone, thyroid. Pre-conception biomarkers explained.
- Best blood test for thyroid health. TSH, free T4, free T3 — what each measures and how to interpret your result.
- Best blood test for heart health. Cholesterol, HDL, LDL, triglycerides, HbA1c — the markers that matter for cardiovascular risk.
- Best blood test for biohacking. The comprehensive panels for performance, longevity and recovery tracking.
- Best blood test for sports performance. Recovery, hormones, iron, inflammation. What athletes test and how often.
- Best blood test for liver health. ALT, AST, GGT, fatty liver markers. What to test and how to read the results.
- Best blood test for general wellness over 40. A comprehensive baseline for healthy ageing through your 40s and 50s.
- Best food sensitivity test. IgG antibody testing across 200+ foods, how it differs from food allergy testing.
Looking for something specific?
- For an A-Z of individual biomarkers and what they mean, see the Biomarker Glossary.
- For step-by-step preparation guidance, see What to know before your appointment.
- To compare panels in a single category, browse the full panel catalogue.
Important. Educational content. Chxhealth is a UK biomarker and genetic data provider. We do not diagnose, treat or prescribe. For medical advice about your health or results, please speak to a qualified clinician.