EVIDENCE-BASED GUIDES

Health guides for men who want answers

No broscience. No clickbait. Just clear, evidence-based information about blood tests, biomarkers, and what you can actually do to feel better.

Longevity· 18 min read

The Best Blood Tests for Longevity (UK 2026)

15 science-backed biomarkers that predict biological age and healthspan — from hs-CRP and ApoB to homocysteine and DHEA-S. Based on PhenoAge and GrimAge research.

GLP-1 Medications· 15 min read

Blood Tests for Ozempic, Mounjaro & Wegovy Users (UK Guide 2026)

Which blood tests should you get before and during GLP-1 treatment? Liver, kidney, thyroid, metabolic and nutritional biomarkers explained.

Getting Started· 12 min read

The Complete Guide to Blood Tests for Men (UK 2026)

Everything you need to know about blood testing — what gets tested, why it matters, and what your results actually mean.

Symptoms· 10 min read

Always Tired? The Blood Tests That Reveal Why

Chronic fatigue affects 1 in 5 UK adults. Here are the 8 biomarkers that explain why — and what to do about each one.

Comparison· 8 min read

Home Blood Tests vs GP Blood Tests: Which Is Better?

An honest comparison of private home blood tests and NHS GP blood tests — cost, speed, what gets tested, and when each makes sense.

Vitamins & Nutrition· 12 min read

Vitamin D Deficiency in the UK: Symptoms, Testing & How to Fix It

1 in 6 UK adults are vitamin D deficient. Symptoms, optimal blood levels, supplementation doses, and when to get tested — based on NHS, NICE and SACN guidelines.

Hormones· 14 min read

Testosterone Levels by Age: What's Normal in the UK (2026)

Normal testosterone levels for men and women by age in nmol/L. BSSM clinical thresholds, the grey zone explained, free T vs total T, and when to get tested.

Hormones· 16 min read

Low Testosterone Symptoms in Men: 12 Warning Signs & What to Do (UK 2026)

Fatigue, brain fog, low libido, weight gain — 12 symptoms of low testosterone explained. BSSM thresholds, which blood tests to request, NHS vs private pathways, and evidence-based fixes.

Longevity· 16 min read

Can a Blood Test Tell Your Biological Age? (UK 2026 Guide)

How PhenoAge, GrimAge and UK Biobank algorithms estimate biological age from 9 routine blood biomarkers. Costs, NHS gaps, and evidence-based ways to lower your result.

Heart Health· 16 min read

Heart Health Blood Test: What to Test & Why Cholesterol Alone Isn't Enough (UK 2026)

ApoB, Lp(a), hs-CRP, HbA1c and a full lipid panel — the blood tests that actually predict heart disease. NHS gaps, optimal ranges, and what to do with your results.

GLP-1 Medications· 18 min read

Blood Tests for Women on GLP-1 Drugs During Perimenopause (UK 2026)

Bone loss, muscle depletion, thyroid disruption, gallbladder risk — the compounded dangers of Ozempic + perimenopause, and the blood tests that catch problems early.

Getting Started· 14 min read

Private Blood Tests UK: How Much Do They Cost in 2026?

A clear breakdown of private blood test costs in the UK — prices by test type, what the NHS covers for free, hidden costs to avoid, and how to get the most biomarkers per pound.

Getting Started· 15 min read

How Often Should You Get a Blood Test? UK Guide (2026)

Evidence-based testing schedules for healthy adults, athletes, and those managing conditions. NHS Health Check frequency vs private testing — plus when more testing does more harm than good.

Supplements· 9 min readComing soon

Which Supplements Are Actually Worth Taking? Let Your Blood Decide

Most men waste money on supplements they don't need. Blood testing shows exactly what's low — and what's not worth the capsule.