What is NAD⁺?
NAD⁺ (nicotinamide adenine dinucleotide) is a natural molecule found in every cell of your body. It plays an essential role in producing energy, repairing DNA, and keeping cells healthy. NAD⁺ levels naturally decline with age, stress, and illness.
Why is NAD⁺ Important?
NAD⁺ helps:
- Convert food into energy (supports cell metabolism)
- Maintain healthy brain and nerve function
- Repair DNA and reduce oxidative stress
- Support healthy ageing and recovery from fatigue
Uses and Evidence
NAD⁺ supplements and infusions are promoted for:
- Anti-ageing and energy support
- Improved mental clarity and focus
- Recovery from fatigue or stress
- Support in certain addiction recovery programs
However, scientific evidence is limited. Most research has been done in animals or small human studies. So far:
- Oral NAD⁺ precursors such as nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) show better and safer evidence for increasing NAD⁺ levels in humans.
- IV NAD⁺ infusions are popular but lack strong clinical trial support for most health claims.
Possible Side Effects (IV NAD⁺ Infusions)
While generally considered low risk, IV NAD⁺ can cause:
- Nausea or vomiting
- Flushing or feeling warm
- Chest tightness or rapid heartbeat
- Headache or dizziness
- Injection site pain or phlebitis (vein inflammation)
These effects often occur if the infusion is given too quickly.
There are no long-term safety data for IV NAD⁺.
Safer Options
Oral NAD⁺ precursors (like NR or NMN):
- Are supported by more human studies
- Have better safety profiles
- Are easier and cheaper to take
- Show measurable increases in NAD⁺ levels in the blood
Summary
| Aspect | IV NAD⁺ Infusion | Oral NAD⁺ Precursors (NR/NMN) |
|---|---|---|
| Evidence | Limited human data | Multiple human studies |
| Safety | Risk of side effects during infusion | Generally well tolerated |
| Convenience | Requires clinic visit | Easy daily capsule |
| Recommended? | Not routinely | Preferred and evidence-based |
Before You Start
Always consult your doctor before beginning NAD⁺ therapy — especially if you are pregnant, breastfeeding, or have heart, liver, or kidney conditions.
References and further reading: