What is NAD+, and why do people use it?

NAD+ is a coenzyme found in every cell. It helps your body produce energy, support metabolism, and carry out DNA repair. NAD+ levels naturally decline with age, which is why some people use NAD+ supplements as part of a wellness routine.

What do NAD+ supplements support?

People use NAD+ supplements to support cellular energy, cognitive function, metabolism, and healthy ageing. Results vary, and research is ongoing.

How can you verify that your My NAD product is genuine?

Each genuine My NAD product includes a unique authenticity verification system. You can verify your product through the official authenticity portal to confirm it is genuine.

Why is product authentication important for supplements?

Counterfeit supplements may contain incorrect ingredients, improper dosages, or poor-quality materials. Verifying authenticity helps ensure you receive a genuine product that meets quality and safety standards.

Who should consider taking NAD+ supplements?

Adults interested in supporting healthy aging, energy metabolism, cellular health, and overall wellness may consider NAD+ supplements. Always consult a healthcare professional before starting any new supplement.

Are NAD+ supplements generally well tolerated?

NAD+ supplements are generally well tolerated when you use them as directed. If you are pregnant, breastfeeding, taking medication, or managing a medical condition, you should speak with a healthcare professional before use.

Why do NAD+ levels decline with age?

Research indicates that NAD+ levels naturally decrease as we age due to changes in cellular metabolism and increased demand for DNA repair processes. This decline has led to growing interest in NAD+ supplementation.

How may My NAD products fit into a healthy aging routine?

NAD+ supports cellular energy production and DNA repair. You may use My NAD products as part of a broader routine that includes good nutrition, exercise, sleep, and regular medical guidance. Results vary from person to person.

Where can I buy genuine My NAD products in the UK?

To ensure authenticity and quality, purchase My NAD products only through the official My NAD website or authorized distributors.

How Does NAD+ Work in the Body? The Science Explained

NAD+ Blogs
Aug 15
2 min read

NAD+ works as an electron shuttle inside your cells, moving electrons between chemical reactions so your mitochondria can convert food into usable energy. It also plays a key role in DNA repair and helps regulate metabolism throughout the body.

NAD+ and NADH: Two Forms, One Molecule

NAD+ exists in two interchangeable states: NAD+ (oxidised) and NADH (reduced). The body constantly converts between the two as part of normal metabolism, using vitamin B3 and the amino acid tryptophan as building blocks. This back-and-forth cycle is what allows NAD+ to keep functioning as a reusable energy carrier rather than being consumed once and discarded.

The Electron Shuttle: How NAD+ Powers Your Mitochondria

Inside your mitochondria — the energy-producing structures in your cells — NAD+ carries electrons from one chemical reaction to the next. This process is central to converting the food you eat into ATP, the molecule your cells use as fuel. Without adequate NAD+, this energy-production chain slows down, which is part of why low NAD+ levels are associated with fatigue and reduced cellular function.

Beyond Energy: DNA Repair and Cellular Protection

NAD+ isn't only about energy. It also fuels enzymes called sirtuins and PARPs, which are involved in repairing damaged DNA and protecting cells from oxidative stress. This dual role — energy production and cellular maintenance — is why NAD+ is often described as central to healthy ageing biology, even though it isn't a treatment for age-related disease.

Why NAD+ Levels Decline With Age

NAD+ levels fall naturally as we get older, and lower levels have been associated with muscle weakness, slower metabolism, and reduced cognitive sharpness in research studies. This decline is one of the main reasons people explore NAD+ supplementation — to support cellular energy levels as part of a broader healthy ageing approach, alongside diet, exercise, and sleep.

Frequently Asked Questions

What does NAD+ actually do in the body?

NAD+ acts as an electron carrier in cellular energy production and supports DNA repair, enzyme activity, and metabolic regulation across nearly every cell type.

Is NAD+ the same as vitamin B3?

No, but they're related. The body synthesises NAD+ partly from vitamin B3 (niacin) and the amino acid tryptophan, so B3 is one of the raw materials NAD+ production depends on.

Why do NAD+ levels drop with age?

Researchers believe a combination of increased NAD+ consumption by repair enzymes and reduced production capacity contributes to the age-related decline, though the exact mechanisms are still being studied.

Can boosting NAD+ reverse ageing?

No. While NAD+ supports processes linked to healthy ageing, there's no evidence it reverses ageing, and it shouldn't be understood as an anti-ageing cure.

What foods naturally support NAD+ production?

Foods rich in vitamin B3 (meat, fish, whole grains, legumes) and tryptophan (turkey, eggs, dairy, nuts) provide the building blocks your body uses to synthesise NAD+ naturally.

This article is for general informational purposes only and does not constitute medical advice. Always speak with a qualified healthcare professional before starting any new supplement or injectable therapy.