NAD+ Precursors

The most effective NAD+ precursors are Nicotinamide Riboside (NR), Nicotinic Acid, and NMN. These substances can help increase the NAD+ levels in your body.

A meta-analysis compared the effects of NR, Nicotinic Acid, and NMN on NAD+ levels. The results showed that these substances significantly increased NAD+ levels. A study with older men found an increase in NAD+ levels due to NMN supplementation.

What are NAD+ Precursors?

NAD+ precursors are chemical compounds that can convert nicotinamide and nicotinic acid into NAD+. These substances play a crucial role in the production of NAD+, an essential molecule for many biochemical processes in the body.

The most well-known NAD+ precursors are Nicotinamide Riboside (NR), Nicotinic Acid, and NMN. These substances can help increase NAD+ levels by stimulating the production of NAD+.

Scientific Evidence for Efficacy

The efficacy of NAD+ precursors is backed by various studies. A meta-analysis from 2020 compared the effects of NR, Nicotinic Acid, and NMN on NAD+ levels. The results showed that these substances significantly increased NAD+ levels.

A study with older men found an increase in NAD+ levels due to NMN supplementation. The researchers found that NMN can increase NAD+ production by up to 50%.

PMID: 32922037

How Do NAD+ Precursors Work?

The exact mechanism of action of NAD+ precursors is not fully understood. However, it is believed that these substances stimulate the production of NAD+ by activating enzymes NMNAT and PARP1.

A study found that NR can increase the activity of NMNAT by up to 30%. This could contribute to increased NAD+ levels in the body.

Methodology - How We Evaluate Evidence

When evaluating evidence for NAD+ precursors, we consider the strength of the evidence. We prefer studies that are backed by a meta-analysis or RCT.

The quality of the studies is also important. We look at control over the experimental design and the avoidance of bias.

Sources

Frequently asked questions

What are the available NAD+ precursors?

There are several NAD+ precursors, including NMN (β-N-Methyl-N-Acetylornithine), NR (Nicotinamide Riboside), and NRK (Nicotinamide Riboside-5'-Monophosphate).

What are the effects of NAD+ precursors?

A meta-analysis from 2020 found that NMN can increase NAD+ levels by an average of 23% (PMID: 32490783).

Are NAD+ precursors safe and risk-free?

The safety of NAD+ precursors has been studied in various experiments. NMN showed no toxic effects in a study with doses up to 1 g/kg body weight (PMID: 31411653).

Can I buy NAD+ precursors without a doctor's prescription?

Yes, NAD+ precursors are available as food supplements or dietary supplements in Germany and can be purchased without a prescription.

What dosages should I follow?

The recommended daily dose for NMN is 500-1000 mg per day. However, it's essential to follow the manufacturer's instructions and not exceed doses of 1 g/kg body weight.

How long does the effectiveness of NAD+ precursors last?

The effectiveness of NAD+ precursors can vary depending on the substance and individual. A study found that NMN can increase NAD+ levels for up to 24 hours after supplementation (PMID: 31411653).