• NAD NAD+ NADH Blood test

NAD Blood Test

Understanding the NAD Blood Test What is the NAD Blood Test? The NAD Blood Test measures the levels of Nicotinamide Adenine Dinucleotide (NAD) in your bloodstream. NAD is a crucial coenzyme found in every cell of... Read more

Understanding the NAD Blood Test

What is the NAD Blood Test?

The NAD Blood Test measures the levels of Nicotinamide Adenine Dinucleotide (NAD) in your bloodstream. NAD is a crucial coenzyme found in every cell of our body, and it plays an essential role in energy metabolism, DNA repair, and cellular communication. Measuring NAD levels can help you understand your body’s function and assess your overall health. This test is increasingly used to evaluate age-related declines in NAD, which could inform choices related to health and wellness.

Benefits of Testing NAD Levels

Understanding your NAD levels can provide insights into your metabolic health. When NAD levels are optimal, your body can maintain efficient energy production. However, low NAD levels have been associated with aging and various health issues, so knowing your levels can be particularly beneficial. By identifying these levels, you can make informed decisions about lifestyle changes, supplementation, or other interventions that may improve your health trajectory.

How to Prepare and What to Expect

Before undergoing the NAD Blood Test, it's essential to follow any specific instructions given by your healthcare provider, which may include fasting. The test itself is straightforward and involves a simple blood draw. After the procedure, you will receive results that can clarify your cellular health and guide potential therapies or lifestyle modifications. Understanding your NAD levels is a proactive step toward maintaining your health and wellbeing.

The growing interest in NAD supplements and injection kits have led many people to explore ways to support their cellular health. However, checking your NAD levels is an important first step, as it helps you understand your body’s individual needs and ensures any lifestyle changes or supplementation are tailored effectively and safely.

This is the world’s only CE-marked test for measuring NAD levels in human blood. The blood test measures your NAD+ and NADH levels, to gain personalised insights to support your energy, metabolism, and overall wellness.

To take the test:

  1. Book blood test at home or in-clinic.
  2. Receive your results within 10 working days of the sample being received at the laboratory – gain insights to guide your decisions on supplementation or lifestyle adjustments.
  3.  

Want to find out more? Enquire via the form and a member of the team will get back to you.

 

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What biomarkers do we test?

How our tests work

Book online...

Book online, receive your kit and take to your local Goodbody clinic.

Send it back…

Send your sample in the post to be analysed at an accredited laboratory.

Get results.

Get your comprehensive detailed results report from the laboratory, with guidance from our support team.

Available testing locations for NAD Blood Test

Aberdeen Clinic GCI Advanced Aesthetics Abergavenny Clinic Amatsu Centre Airdrie Clinic Amiry & Gilbride Pharmacy Aldershot Clinic Wellington Pharmacy Alton Clinic Four Marks Pharmacy Andover Clinic Dr Malaika Clinics Anniesland Clinic Amiry & Gilbride Pharmacy Arlesey Clinic Waterloo Farm Wellness Armadale Clinic Dears Pharmacy Ascot Clinic Ascot Pharmacy AshbyDeLaZouch Clinic Aeternum Aesthetics Ashford Clinic Breakspear Pharmacy Aveley Clinic Doctor B Aesthetics Aylesbury Clinic Aura Body Clinic Aylesbury Clinic Pearlfect Care Pharmacy Ballingry Clinic Barnsley Clinic Aesthetica Medispa Barnsley Clinic Metanoia Medical Aesthetics (Inside) Cliniva Medispa Find More
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Measure your NAD levels

The new Blood Test is an easy, at-home kit that helps you check your NAD+ and NADH levels – key molecules involved in energy and cellular health. By knowing your baseline levels, you can make informed and safe decisions about lifestyle choices or supplementation, tailored to your body’s needs.

The kit uses advanced technology to provide accurate results from a small blood sample. Results are simple to understand and allow you to monitor your NAD status safely over time, helping you maintain your wellbeing.

 

What are NAD and NADH?

NAD (Nicotinamide Adenine Dinucleotide) is a vital molecule naturally produced in the body. It plays a key role in converting food into energy, supporting cellular repair, and maintaining overall metabolic balance. NAD declines as we age, so maintaining healthy levels is crucial for overall health, longevity and slowing ‘signs of aging’.

NAD supplements have recently become highly popular in the UK – to immediately boost NAD levels – helping to promote overall energy, mental clarity and signs of vitality.

NADH is the reduced form of NAD and works alongside to help regulate energy production and cellular functions. Together, NAD and NADH are crucial for maintaining cellular health, ensuring your cells have the energy to function efficiently and repair damage over time.

 

Why take the NAD Blood Test?

NAD levels differ widely between individuals depending on factors such as:

  • Age
  • Diet
  • Lifestyle choices
  • Underlying health conditions.

 

Testing your NAD provides an accurate baseline, helping to determine whether supplementation or lifestyle changes are appropriate for you. Sustaining healthy NAD levels is vital to ensure you only take on what your body needs.

Extremely low NAD+: May result from chronic illness, poor diet, or mitochondrial dysfunction; medical evaluation recommended.

Extremely high NAD+: Often caused by excessive supplementation; can disrupt metabolic balance and may lead to vascular inflammation.

Extremely low NADH: Could indicate either efficient energy production or severely depleted NAD levels due to vitamin B3 deficiency or mitochondrial dysfunction.

Extremely high NADH: Commonly linked to mitochondrial dysfunction or over-supplementation.

What will the NAD Blood Test tell me?

  • Your NAD+ and NADH levels.
    The test measures both NAD+ (the oxidized form) and NADH (the reduced form) in your blood showing how much energy your cells are producing vs how much they are repairing and regenerating.

 

  • Your NAD+/NADH ratio
    This ratio reflects your cellular redox balance, which is essential for metabolism, energy production, and overall cell function. A healthy ratio indicates that your body is efficiently converting nutrients into energy and supporting cell repair.

 

Normal ranges:
NAD+ (µM) Low - 20 | High - 36
NADH (µM) Low - 0.6| High - 1.8
NAD+/NADH ratio Low - 16.3 | High - 45

See a report sample here


Results are not a diagnosis. If your values are outside the healthy reference range, consult a qualified healthcare professional for interpretation and any necessary follow-up.

 

How does the blood test work?

The test uses a small sample of your blood, which is processed using NADMED Technology to accurately measure NAD and NADH concentrations. Results provide a clear picture of your cellular energy balance, helping identify potential deficiencies or imbalances. This information can then guide personalised supplementation or lifestyle adjustments.

Simply book your blood test at home or in-clinic, and receive your results within 10 working days of the sample being received at the laboratory.

 

What is in the kit?

Each kit includes all materials required for sample collection and return. Any licensed nurse can draw the sample using the enclosed instructions. When booking the blood test, you will receive:

  • CE-marked blood collection kit
  • Instructions for taking the sample correctly
  • Pre-paid return packaging to send the sample to the lab
  • Access to your results
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How our blood tests work

Have your blood taken in-clinic by one of our skilled phlebotomists and check multiple biomarkers in one go. Many of our tests can also be done in the comfort of your own home with one of our easy-to-use test kits.

Home tests
Clinic tests

Testing

Take a test, either in the comfort of your own home, with a nurse visit, or at one of our clinics nationwide.

Analysis

Your sample is analysed in the clinic, laboratory or using your home test equipment.

Results

Get your comprehensive detailed results report from the laboratory.

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Excellent service

I was seen immediately on arrival and taken straight in for my procedure. The premises were clean and well maintained, and the staff were polite, professional, and very efficient.

Sophie

Results back within 24 hours

I wanted to have a blood test after a previous HbA1c result showed I was in the diabetic range. I had made some lifestyle changes about a month earlier and wanted to check my progress, but my doctor wasn’t able to retest for another two months, so I decided to arrange my own test. Goodbody made the whole process very easy and convenient, with straightforward booking and quick service. I received my results within few days, and my levels had improved, which was really encouraging and motivated me to keep going. It was well worth the cost.

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Someone from Goodbody called me to put my mind ease

I recently had a full blood count taken by a very friendly nurse at Superdrug. She completed all my paperwork for me and was incredibly kind. I received my results the next day. Because of my anxiety and having never seen a lab report before, I emailed for some clarification, and to my surprise, someone from Goodbody called me to put my mind at ease. I’m very grateful for the excellent service and will definitely be using them again.

Michael. T

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The nurse was incredibly helpful and understanding of my fear of needles, providing constant reassurance and guiding me through the entire process to help take my mind off what was happening.

Illy. C

Definitely recommend

The team was friendly and professional, making the experience completely painless. The clinic was easy to find, with convenient parking available nearby.

Martin. K

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I visited the clinic for a private blood test and was immediately impressed by the service. They offer a wide range of services, everything feels high quality and professional, and Emma, who attended to us, was fantastic! Whatever service you book here, you can be confident you’re in very capable hands.

Robert

Top notch experience

As someone who regularly needs blood tests due to diabetes, I can honestly say this was the first time I experienced absolutely no pain at all with the needle—truly none! There was also no bruising afterward. It was a really top-notch job and made for an excellent overall experience (something I’ve never said about a blood test before!).

Ashley. P

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I found the staff to be friendly, approachable, and highly professional. They explained everything clearly as they carried out the blood draw. The clinic was clean and thoughtfully set up to help patients feel at ease.

Lorra. L

Polite and efficient approach

I was impressed by the company’s focus on clear communication and professionalism. The procedure was quick, well-organised, and ran smoothly with no unnecessary waiting or confusion. I especially appreciated their gentle approach and how they put me at ease, which was reassuring since it was my first blood draw at the clinic.

Simon. S

Amazing service including nurse coming

Outstanding service, including a nurse visiting my home for blood work. Full body scans through Well Man and Well Woman were arranged within three days, including additional scans and tests which i had requested. All organised within two days and delivered directly to my home. Truly convenient and efficient service!

Andrew. B

Made a dreaded blood test so much easier

I had been feeling unwell for three years and had numerous blood tests through my doctor with no clear answers. I decided to try Goodbody Clinic and ordered an at-home menopause test. The results revealed that I have a low thyroid TSH level, and I am so relieved that this issue was finally identified.

Charlie. T

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From start to finish, the service was exceptional. Booking the appointment was straightforward, and the entire experience was well-organized and impressively quick.

Dmitry. R

Results less than 24 hours later

Even though I arrived at the clinic a few minutes early, I was seen immediately. I received my blood test results in less than 24 hours. Truly brilliant service!

Malti

Not sure if this test
is right for you?

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Experts you can trust

Meet our Goodbody Experts

Our team of professionals has decades of experience so you can be sure you’re getting the best tests and support to understand and improve your health.

Get in touch with Our Team

Dr Lebeth Jacobs

BSc (Hons) MBcHB
Registered GP & Lead Medical Advisor

Dr Alexandre Akoulitchev

MA, PhD, FRSM
Clinical Support Advisor

Dr Cheng Boon

MBCHB, MRCP, FRCR
Consultant Oncologist

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