What Is NAD+ IV Therapy? A Scientific Guide to NAD+ Drips

NAD+ has become an increasingly discussed molecule in the fields of cellular metabolism, mitochondrial biology and healthy ageing. But despite the growing interest surrounding NAD+, there is often a considerable gap between what NAD+ does naturally within human cells and the benefits sometimes attributed to NAD+ supplementation.

So, what exactly is NAD+, why is it important, and what does NAD+ IV therapy involve?

At New Body Clinic in Beaconsfield, Buckinghamshire, we believe patients should be able to make informed decisions based on a clear understanding of both the underlying science and the limitations of the current evidence.

What is NAD+?

NAD+ stands for nicotinamide adenine dinucleotide.

It is a naturally occurring coenzyme present in cells throughout the human body and is essential to numerous biochemical reactions involved in normal cellular function.

One of its best-understood roles is within cellular energy metabolism.

When we consume carbohydrates, fats and proteins, these nutrients ultimately enter a series of metabolic pathways that enable cells to extract and utilise their chemical energy.

NAD+ participates in these reactions by functioning as an electron carrier.

In simplified terms, NAD+ can accept electrons and become its reduced form, NADH. NADH can subsequently donate electrons within other biochemical reactions.

This continuous cycling between NAD+ and NADH is fundamental to cellular metabolism.

NAD+, Mitochondria and Cellular Energy

Mitochondria are specialised structures within cells that play a central role in aerobic energy metabolism.

Within the mitochondria, electrons carried by NADH can enter the electron transport chain. The movement of electrons through this system contributes to the formation of a proton gradient across the inner mitochondrial membrane.

That electrochemical gradient is then used by an enzyme called ATP synthase to generate adenosine triphosphate, or ATP.

ATP is sometimes described as the body's cellular “energy currency” because it provides usable chemical energy for a vast range of biological processes.

NAD+ therefore occupies an important position within the biochemical pathways involved in converting nutrients into cellular energy.

However, an important distinction needs to be made.

The fact that NAD+ is essential to normal energy metabolism does not automatically mean that administering additional NAD+ intravenously has been demonstrated to increase a person's energy levels.

Those are two separate scientific questions.

NAD+ Does More Than Participate in Energy Metabolism

NAD+ is also used as a substrate by several families of enzymes involved in cellular regulation.

These include sirtuins, a family of NAD+-dependent enzymes involved in metabolic regulation and cellular responses to physiological stress.

Another important group is the poly(ADP-ribose) polymerases, commonly known as PARPs. These enzymes participate in cellular processes associated with DNA damage and repair.

NAD+ is also consumed by enzymes including CD38, which is involved in cellular signalling and NAD+ metabolism.

This means NAD+ sits at the intersection of several areas of contemporary biological research, including:

• Cellular energy metabolism

• Mitochondrial biology

• Redox reactions

• Cellular signalling

• DNA repair-associated processes

• Metabolic regulation

• Cellular responses to physiological stress

These biological functions help explain why NAD+ has attracted considerable scientific interest.

They should not, however, be interpreted as evidence that an NAD+ infusion has been proven to enhance each of these processes in healthy people.

Does NAD+ Decline as We Age?

You may have encountered the claim that NAD+ levels decline dramatically with age.

The scientific picture is more nuanced.

Animal and laboratory research has produced substantial interest in age-related changes in NAD+ metabolism. Human studies have also reported age-associated differences in NAD+ in certain tissues.

However, the evidence is not consistent across every human tissue or population.

A major 2025 review published in Nature Metabolism concluded that consistent evidence of age-related NAD+ decline in humans exists only in a limited number of studies and that the available human data remain relatively sparse.

This is important because findings from laboratory models or rodents cannot automatically be assumed to produce the same effects in humans.

Research into NAD+ metabolism and ageing is therefore an exciting field, but it remains an evolving one.

What Is NAD+ IV Therapy?

NAD+ IV therapy involves administering a solution containing nicotinamide adenine dinucleotide through an intravenous cannula.

This differs from oral NAD+-related supplements, which generally contain compounds such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN) intended to act as precursors from which the body can synthesise NAD+.

With intravenous administration, the infused substance enters the systemic circulation without first passing through the gastrointestinal tract.

However, this should not be confused with evidence of superior clinical benefit.

How NAD+ subsequently distributes between blood and different tissues, how it is metabolised, and the extent to which extracellular NAD+ or its metabolites influence intracellular NAD+ pools are considerably more complex questions.

What Does the Research Say About NAD+ IV Therapy?

This is where separating biological plausibility from demonstrated clinical benefit becomes particularly important.

There is extensive scientific literature concerning NAD+ metabolism.

There is also growing human research into NAD+-raising strategies, particularly oral precursors such as NR and NMN.

The direct clinical evidence for intravenously administered NAD+ itself, however, is considerably more limited.

Consequently, it would be inappropriate to conclude from our understanding of NAD+ biochemistry alone that an NAD+ infusion has been proven to increase energy, improve memory, reverse biological ageing, enhance longevity or treat a particular medical condition.

Even research involving oral NAD+ precursors cannot simply be extrapolated to intravenous NAD+, because these are different compounds, routes of administration and treatment protocols.

For patients considering NAD+ therapy, this distinction matters.

What Happens During an NAD+ IV Appointment?

Before IV therapy, an appropriate clinical assessment should be undertaken to determine whether treatment is suitable for the individual.

This may include discussion of:

• Current health and medical history

• Current medications and supplements

• Previous reactions to intravenous treatments

• Treatment goals

• Potential contraindications

• The proposed dose and infusion protocol

If treatment is considered appropriate, a cannula is inserted into a suitable vein and the NAD+ solution is administered intravenously.

NAD+ protocols can involve a relatively gradual infusion, with the rate adjusted according to the individual protocol and tolerability.

Patients should be monitored appropriately during treatment.

Is NAD+ IV Therapy Suitable for Everyone?

No.

As with any intravenous treatment, suitability should be assessed individually.

A person's medical history, medications, pregnancy or breastfeeding status, allergies and other relevant clinical factors may affect whether treatment is appropriate.

IV therapy also carries potential risks associated with venous access and infusion, and individual responses can vary.

This is one reason NAD+ IV therapy should be approached as a clinician-led intervention rather than simply another wellness product.

What Can We Reasonably Say About NAD+?

The science surrounding NAD+ is genuinely fascinating.

We know that NAD+ is an essential coenzyme involved in fundamental biological processes, including cellular metabolism, redox reactions and the activity of several important enzyme systems.

We also know that NAD+ metabolism has become an important area of research in mitochondrial biology, metabolism and ageing.

What we do not yet have is sufficient clinical evidence to turn every interesting molecular mechanism associated with NAD+ into a proven benefit of intravenous NAD+ therapy.

At New Body Clinic, we believe that distinction is important.

NAD+ IV Therapy in Beaconsfield, Buckinghamshire

New Body Clinic provides clinician-led NAD+ IV therapy in Beaconsfield, Buckinghamshire.

Treatment protocols are considered on an individual basis following assessment of suitability, medical history and treatment objectives.

NAD+ IV therapy should not be regarded as a treatment or cure for disease, and individual experiences may vary.

If you are considering NAD+ IV therapy, a consultation provides an opportunity to discuss the treatment, current evidence, potential risks and whether it is appropriate for you.

Frequently Asked Questions

What does NAD+ stand for?

NAD+ stands for nicotinamide adenine dinucleotide. It is a naturally occurring coenzyme involved in

numerous biochemical reactions throughout the body.

Is NAD+ involved in energy production?

NAD+ is an essential participant in metabolic pathways associated with cellular energy production. This established biological role should not be confused with evidence that an NAD+ IV infusion has been proven to increase subjective energy levels in healthy individuals.

Is NAD+ an anti-ageing treatment?

NAD+ metabolism is actively studied within ageing research, but NAD+ IV therapy has not been established as a treatment that reverses ageing or extends human lifespan.

Is NAD+ involved in DNA repair?

NAD+ is consumed by enzymes including PARPs, which participate in cellular DNA repair processes. This does not mean that receiving an NAD+ infusion has been clinically demonstrated to “repair DNA”.

Where can I have NAD+ IV therapy in Buckinghamshire?

New Body Clinic offers NAD+ IV therapy from its clinic in Beaconsfield, Buckinghamshire, subject to individual clinical assessment.