What is NAD+? A Beginner’s Guide to the Molecule Behind Energy and Vitality

Discover what NAD+ is, how NAD+ works, and and how this essential coenzyme may support energy production, metabolic function, and cellular health.

Key takeaways
  • NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell of the body.
  • It may support essential cellular processes like energy metabolism and cellular health.
  • NAD+ levels naturally decline with age, stress, and poor sleep.
  • NAD+ injections are one way people explore NAD+ support with a provider’s guidance.

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What is NAD+ and Why Does It Matter?

NAD+ is a naturally occurring molecule found in every living cell. Scientists call it a “coenzyme” that acts like a helper molecule that allows enzymes to function, especially those involved in energy production and cell repair.

Think of NAD+ as a key component that may help your cells stay energized and resilient. NAD+ plays a role in supporting key processes like converting food into cellular energy and maintaining your body’s natural balance.

But here’s the catch: NAD+ levels decline over time. Starting in your 30s, your ability to maintain healthy NAD+ levels begins to drop, making you feel a bit less like yourself.

How NAD+ Works in the Body

NAD+ plays a critical role in several core biological processes:

  • Converting carbohydrates, fats, and proteins into usable cellular energy (ATP)
  • Supporting natural repair mechanisms for DNA and cellular damage
  • Regulating metabolism and mitochondrial health
  • Assisting with internal circadian rhythm and stress response

It acts like a biological connector, helping enzymes “switch on” the processes that keep you functioning at your best. But with age, stress, or environmental strain, NAD+ production may naturally decline.

That’s why NAD+ has become a focus in wellness and longevity conversations.

Signs NAD+ Levels May Be Declining

Although you can't measure NAD+ levels at home, some signs may suggest your body could benefit from NAD+ support:

  • Supports cellular energy and resilience
  • May support mental clarity and focus
  • May help support post-exercise recovery
  • Supports overall wellness during times of stress or fatigue

These are not diagnostic indicators. However, they have led many people, especially women over 35, to ask providers about NAD+ injections or supplements.

What Are NAD+ Injections?

NAD+ injections are a prescription-only therapy delivered subcutaneously (just under the skin). Unlike oral supplements, these injections bypass the digestive system and are being studied for their potential to provide more efficient delivery of NAD+ in wellness settings.

While NAD+ injections are not FDA-approved to treat or prevent any condition, some individual experiences report:

  • Support for natural daily energy
  • May support mental clarity or cognitive function
  • Support for recovery following physical activity

It’s important to note that experiences vary. That’s why Eden offers access to licensed providers who can assess whether NAD+ injections make sense as part of your wellness plan.

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NAD+ Injections vs Other Support Methods

NAD+ can be supported in a few ways:

  • Dietary changes (foods high in B vitamins)
  • Exercise and intermittent fasting, which may help preserve natural levels
  • Over-the-counter supplements with NAD+ precursors like Nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN), meaning they are compounds the body may convert into NAD+ as part of its natural metabolic process.
  • Prescription NAD+ injections, available through clinician-guided care are sometimes used in wellness routines to support cellular energy and recovery.

Each method has its own benefits. However, if you want better absorption or more reliable results, NAD+ injections may be worth discussing with a medical provider.

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Final Thoughts

If you’ve been feeling low on energy or looking to support your body’s natural resilience, NAD+ could be a conversation worth having with your provider.

NAD+ doesn’t promise miracles, but it plays a central role in how your cells function. By understanding what NAD+ does and how it changes over time, you can make better choices about supporting your wellness from the inside out.

Disclaimer: The FDA does not approve compounded medications for safety, quality, or manufacturing. Prescriptions and a medical evaluation are required for certain products. The information provided on this blog is for general informational purposes only. It is not intended as a substitute for professional advice from a qualified healthcare professional and should not be relied upon as personal health advice. The information contained in this blog is not meant to diagnose, treat, cure, or prevent any disease. Readers are advised to consult with a qualified healthcare professional for any medical concerns, including side effects. Use of this blog's information is at your own risk. The blog owner is not responsible for any adverse effects or consequences resulting from the use of any suggestions or information provided in this blog.

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Is NAD+ right for you?

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References