If you have been hearing more about NAD+ lately, whether in conversations about IV therapy, healthy ageing, or energy support, you are not alone. Interest in this molecule has grown steadily as research into cellular health and longevity expands. But what is NAD+, what does it actually do in the body, and why does it matter? This article breaks down the science in plain English.
TLDR
- NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in every living cell
- NAD+ is essential for converting food into energy your cells can actually use — a process that happens inside the mitochondria, often described as the powerhouse of the cell.
- It also supports DNA repair and activates proteins called sirtuins, which are linked to healthy ageing.
- NAD+ levels naturally decline with age, often halving between early adulthood and midlife
- This decline is associated with fatigue, slower recovery, cognitive changes, and reduced cellular resilience
- IV therapy delivers NAD+ directly into the bloodstream, bypassing the digestive system for greater bioavailability
- IV Health Sunshine Coast offers clinician-administered NAD+ infusions and boosters, with a free telehealth nursing consultation as the starting point
The Role NAD+ Plays in Your Cells
How NAD+ Powers Cellular Energy
NAD+ works as an electron carrier inside the mitochondria, the structures within your cells responsible for producing energy. When your body breaks down glucose and fats from food, NAD+ picks up electrons during this process and transfers them along what’s known as the electron transport chain, where they are used to produce ATP, the primary energy currency every cell draws on to function.
Think of NAD+ as the vehicle that keeps the energy production line moving. When NAD+ levels drop, that line slows. Cells generate less ATP, and the effect is often felt as persistent, low-grade fatigue, the kind that rest alone doesn’t fully resolve.
NAD+ and DNA Repair in the Body
Beyond energy metabolism, NAD+ is required by a family of enzymes called PARPs — proteins that detect and repair breaks in DNA strands. DNA damage is a normal byproduct of daily cellular activity, and it accumulates more quickly with age and with exposure to environmental stressors such as UV radiation and oxidative stress.
Research suggests that adequate NAD+ levels support the body’s natural capacity for DNA repair and maintenance. When NAD+ is depleted, that repair capacity may slow.
It is worth noting that individual responses vary, and a pre-infusion assessment can help establish a useful baseline before beginning any NAD+ support protocol.
How Sirtuins Use NAD+ to Support Ageing
Sirtuins (SIRT1 through SIRT7) are a family of proteins that rely on NAD+ to function. Think of them as a cellular maintenance crew, using NAD+ to remove chemical tags from proteins that regulate gene expression, inflammation, and how cells respond to stress. Research suggests sirtuins may mediate many of the cellular benefits associated with calorie restriction and regular exercise.
When NAD+ levels are sufficient, sirtuin activity is supported. As NAD+ declines, sirtuin function tends to follow, something researchers believe contributes to the physical and metabolic changes that accompany ageing.
It is worth noting that much of the strongest sirtuin evidence to date comes from animal and laboratory studies. Human clinical trials are ongoing and early results are encouraging, but this remains an active and evolving area of science.
Why NAD+ Levels Decline as You Age
NAD+ levels are not static. They fall meaningfully with age, with some research estimating that levels can halve between early adulthood and midlife. Several factors can accelerate this decline:
Factor | Effect on NAD+ |
Ageing | Progressive decline in the body’s NAD+ biosynthesis capacity |
Sedentary lifestyle | Reduced activation of NAD+-dependent pathways |
Obesity | Increased NAD+ consumption in metabolic processes |
Alcohol use | Disrupts the NAD+/NADH ratio, particularly in liver cells |
UV exposure and oxidative stress | Increases demand on NAD+-dependent DNA repair enzymes |
Common experiences associated with lower NAD+ levels include persistent fatigue, slower physical recovery, difficulty concentrating, and reduced metabolic efficiency. These experiences can have many causes and are not diagnostic criteria, but they reflect the downstream effects of declining cellular energy and repair capacity.
How NAD+ IV Therapy Works
When NAD+ is taken orally, the molecule cannot survive the digestive process intact. Most oral supplements deliver NAD+ precursors, such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN), leaving the body to complete the conversion through its own metabolic pathways.
Intravenous and booster delivery bypasses the gastrointestinal system entirely. A NAD+ infusion introduces the coenzyme directly into the bloodstream, where it becomes available to cells without the constraints of digestion. At IV Health Sunshine Coast, NAD+ infusions are administered by Registered Nurses in a calm, monitored clinical environment over approximately 60+ minutes – the time will be very different for each person. For those seeking a faster option, a NAD+ booster is available as an injection taking around 10 minutes.
Every treatment begins with a nursing consultation to review your health history, discuss your goals, and assess suitability. A telehealth review with an integrative medical practitioner can be arranged where clinically appropriate.
Who May Benefit From NAD+ Support
NAD+ therapy is not a universal solution, and suitability is always assessed on an individual basis. That said, people who commonly explore NAD+ support include:
- Adults experiencing cognitive and/or energy decline associated with ageing who are looking for targeted cellular support
- Busy professionals managing persistent fatigue or cognitive fog that is affecting daily performance
- People recovering from illness, surgery, or an extended period of physical or emotional stress
- Active individuals and athletes seeking to support recovery, endurance, and metabolic function
- Those interested in a clinically supervised, evidence-informed approach to healthy ageing
Outcomes vary between individuals. NAD+ therapy is intended to complement a healthy lifestyle and primary medical care, not replace it. The free telehealth consultation is the natural starting point to determine whether NAD+ support is a good fit for your circumstances.
Ready to Try NAD+ Therapy on the Sunshine Coast?
If you are curious about NAD+ therapy and whether it may be right for you, the team at IV Health Sunshine Coast is here to help. Whether you visit our Sippy Downs clinic or prefer the convenience of our mobile service available across the Sunshine Coast and selected rural areas, clinician-led NAD+ therapy is closer than you might think.
The first step is a free 15-minute telehealth nursing consultation: simply a conversation to understand your health, your goals, and whether NAD+ therapy is a suitable fit for you. Get in touch to book your free consultation today.
Research has been mentioned above and whenever it is mentioned the source needs to be supplied ensuring its credibility.
This article is intended for general information purposes only and does not constitute medical advice. Please consult a qualified health professional for advice tailored to your individual needs.