Sports & Fitness
Performance-focused blood testing for athletes, gym-goers and anyone serious about their fitness. Understand your recovery, endurance and hormonal baseline.
Whether you're a competitive runner, a dedicated gym-goer or a weekend cyclist, your blood tells the story your training can't. Our sports and fitness blood tests measure the biomarkers that matter most to performance — iron, testosterone, cortisol, vitamin D, inflammatory markers and full blood count — so you can train smarter, recover faster and get more from every session. Available with home visit, clinic or self-collection. Results same day.
SOUND FAMILIAR?
In many cases, the issue isn’t external — it’s internal. Low iron, vitamin deficiencies, hormones off balance. These are the most common hidden causes of poor performance. This is where you find them.
Find Out What’s Holding You BackWHAT WE MEASURE
Most people treat the symptom. We test the cause. Here’s exactly what your blood reveals about your performance.
Drives oxygen transport, stamina and endurance. Low iron is the #1 hidden cause of declining performance in athletes.
View test →Governs muscle growth, recovery and drive. Declining levels are often misread as ageing — but measurable and addressable.
View test →Tracks internal stress and recovery. Persistent CRP means you’re not recovering — no matter how much rest you take.
View test →Red and white cells — the foundation of stamina, immune health and your capacity to sustain training load.
View test →Controls energy output and metabolic rate. The overlooked reason body composition won’t shift despite hard training.
View test →Powers muscle contraction, recovery and sleep. One of the most common — and most underestimated — gaps in athletes.
View test →Tracks blood sugar control to prevent mid-session crashes. Unstable glucose is a fixable cause of training fatigue.
View test →Underpins muscle strength, immunity and bone density. Widespread UK deficiency — especially in indoor athletes.
View test →SPORTS TESTS
7 key panels incl. hormones, thyroid & inflammation
For anyone who trains consistently and wants real answers. Covers magnesium, iron, CRP, full blood count, thyroid, cortisol and testosterone — the markers most likely to explain why performance has stalled.
£105 Value: £320
40+ biomarkers across 10 categories
The complete performance panel. Hormones (9), vitamins (6), cardiovascular, full blood panel, thyroid (5), inflammation, metabolic health, liver and kidney function.
£175 Value: £650
70+ biomarkers
Everything in the Athlete panel plus deeper metabolic, advanced hormonal and full cardiovascular analysis. The annual full-body MOT for those who leave nothing to chance.
£240
FAQS
The most important markers for athletes are: full blood count (oxygen capacity), ferritin and iron (energy and endurance), testosterone and cortisol ratio (overtraining and recovery), vitamin D (muscle function and immune health), and CRP (inflammation). Our Competitive Athlete panel covers all of these and more.
Directly, no — but it identifies the limiting factors preventing you from performing at your best. Undiagnosed low iron is one of the most common hidden causes of declining performance. Testing removes the guesswork so you can act on evidence, not assumptions.
Overtraining syndrome occurs when training load consistently exceeds recovery capacity. Classic blood markers include elevated cortisol, suppressed testosterone, low ferritin, raised CRP and sometimes reduced white blood cells. Regular testing is the most reliable early warning system.
Test during a recovery period — avoid testing within 48 hours of intense training, as CRP, creatine kinase and ferritin can be temporarily elevated post-exercise. A morning fasted test during a deload week gives the most accurate baseline.
Twice per year is a strong baseline — once before a training block, once after. Competitive athletes often test quarterly. If adjusting diet or supplementation, retesting at 8–12 weeks shows whether the changes are working.
Yes — particularly in endurance athletes, female athletes, and those training more than 5 hours per week. Iron deficiency is one of the most common and most treatable causes of poor performance, breathlessness and persistent fatigue in active people.
Yes. We have 100+ phlebotomists nationwide who can visit your home, gym or workplace. You can also use our self-collection finger-prick kits or visit one of our walk-in clinic locations. All options are available at checkout.
What Our Clients Say
I am extremely pleased with the service from Youth Revisited. The phlebotomist who came to my home was punctual, polite and made the experience very comfortable. I received my blood report the very next day. I would highly recommend the Athlete Blood Test to anyone who is competing or serious about their performance.
Shaun C, Google ⭐⭐⭐⭐⭐
Very impressed with the amount of markers checked especially for the price. Also having the option for additional markers and a detailed review to help make more sense of results. Speedy delivery and super speedy results.
Verified Customer, Google ⭐⭐⭐⭐⭐
Outstanding service from start to finish. They consistently go above and beyond expectations.
Alex, Google ⭐⭐⭐⭐⭐
