What is nicotinamide (vitamin B3) and how does it affect our health and longevity?

What is Nicotinamide Riboside and how does it affect our health and longevity?

3. Mai 2025· 3 Min. Lesezeit

Lebensmittel mit Nicotinamid (Vitamin B3) erhöhen den NAD+ Spiegel und verbessern die Langlebigkeit

Nicotinamide Riboside (NR) is a modern form of Vitamin B3 and is considered one of the most effective natural substances for increasing NAD⁺ levels in the body. NAD⁺ (nicotinamide adenine dinucleotide) is an essential coenzyme that controls numerous cellular processes – including energy production, DNA repair, and cell regeneration¹. With increasing age, NAD⁺ levels drop rapidly – a process associated with fatigue, reduced performance, and accelerated cell aging.

What is Nicotinamide Riboside?

Nicotinamide Riboside is a naturally occurring Vitamin B3 derivative and a direct precursor to NAD⁺. Unlike older forms such as Niacin (nicotinic acid) or Nicotinamide, NR does not cause unpleasant flush reactions and simultaneously exhibits high bioavailability². After absorption, NR is efficiently converted to NAD⁺ in the body³.

NR, NAD⁺, and Cellular Energy

NAD⁺ is essential for the function of mitochondria – the powerhouses of our cells – which provide energy in the form of ATP⁴. High NAD⁺ levels support regeneration, inhibit inflammation, and activate sirtuins – enzymes considered “longevity regulators”⁵. Studies show that Nicotinamide Riboside can significantly increase NAD⁺ concentration in muscles and blood – with positive effects on energy, metabolism, and cell protection⁶.

NR and Cardiometabolic Health

Clinical studies show that NR can help lower systolic blood pressure and reduce inflammatory markers – two key risk factors for cardiovascular diseases⁷. Positive effects on blood sugar regulation and insulin sensitivity have also been observed.

NR and Cognitive Function

In the brain, NAD⁺ plays a key role in signal transduction and neuroprotection. Initial human studies suggest that NR can enhance cognitive performance and may counteract neurodegenerative diseases such as Alzheimer's⁸.

Comparison: NR vs. Niacin vs. Nicotinamide vs. NMN

All four belong to the family of B3 vitamins or their derivatives but differ significantly in their effects, safety, and legal status:

Niacin (Nicotinic acid): Effective, but often associated with so-called flush reactions (skin redness, feeling of warmth) and poor tolerability.
Nicotinamide (Niacinamide): Well-tolerated, but with limited effect on increasing NAD⁺ levels in some tissues.
Nicotinamide Mononucleotide (NMN): Promising as it is metabolized into NAD⁺. Studies show positive effects on metabolism, energy, and aging. However, NMN is not approved as a dietary supplement.
Nicotinamide Riboside (NR): Highly bioavailable, no flush reactions, immediate conversion to NAD⁺, very good study data, and approved as a dietary supplement.

Conclusion

Nicotinamide Riboside is currently one of the best and safest options for increasing NAD⁺ levels. It is well-tolerated, scientifically sound, and works at a cellular level in numerous health-relevant areas – from energy to heart to brain. In direct comparison with NMN, NR convinces with clear approval, good tolerability, and robust evidence.

Sources +

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