Tru Niagen (Nicotinamide Riboside)

Tru Niagen contains nicotinamide riboside chloride, a vitamin B3 derivative that serves as a precursor to NAD+ (nicotinamide adenine dinucleotide). It enhances cellular energy metabolism and supports DNA repair mechanisms associated with healthy aging.

Origin & History

Tru Niagen contains Nicotinamide Riboside, a form of vitamin B3 found in trace amounts in milk and yeast. It is synthesized through a proprietary process to enhance bioavailability.

Historical & Cultural Context

Nicotinamide Riboside is a relatively recent discovery in the context of vitamin B3 research, with growing interest in its potential for promoting healthy aging.

Health Benefits

- Boosts NAD+ levels, enhancing cellular energy production and reducing fatigue. - Supports healthy aging by promoting DNA repair and cellular resilience, contributing to longevity. - Enhances cognitive function by improving brain energy metabolism, supporting memory and focus. - Supports cardiovascular health by improving blood vessel function and reducing oxidative stress. - Promotes metabolic health by enhancing insulin sensitivity, aiding in weight management. - Reduces inflammation by modulating immune response, contributing to joint and systemic health. - Improves muscle health by enhancing mitochondrial function, supporting endurance and recovery.

How It Works

Nicotinamide riboside is converted to NAD+ through the salvage pathway via nicotinamide riboside kinases (NRK1 and NRK2). Elevated NAD+ levels activate sirtuins (SIRT1-7), a family of deacetylase enzymes that regulate cellular stress responses, DNA repair, and mitochondrial biogenesis. This process also supports poly(ADP-ribose) polymerase (PARP) function, crucial for maintaining genomic stability.

Scientific Research

Numerous studies, including human trials, have shown that Nicotinamide Riboside effectively increases NAD+ levels, supporting metabolic and cellular health.

Clinical Summary

Human studies show nicotinamide riboside supplementation can increase NAD+ levels by 40-90% within 2-8 weeks. A randomized controlled trial of 140 adults found 300mg daily improved muscle NAD+ levels and insulin sensitivity. However, most longevity and cognitive benefits are primarily demonstrated in animal studies, with limited long-term human data on anti-aging effects.

Nutritional Profile

Tru Niagen contains Nicotinamide Riboside (NR) chloride as its sole active ingredient, typically dosed at 300 mg per capsule (standard recommended daily dose). NR is a form of vitamin B3 (niacin) and a direct precursor to nicotinamide adenine dinucleotide (NAD+). Molecular weight of NR chloride: ~290.7 g/mol. Each 300 mg dose provides approximately 255 mg of free nicotinamide riboside base. Unlike nicotinic acid (niacin), NR does not activate the GPR109A receptor, meaning it does not cause flushing. Bioavailability: Oral NR is efficiently absorbed in the gut and converted to NAD+ primarily via the nicotinamide riboside kinase (NRK1/NRK2) pathway. Human pharmacokinetic studies demonstrate that 300 mg/day NR can increase whole blood NAD+ levels by approximately 40–90% within 2–4 weeks. NR is more bioavailable as an NAD+ precursor compared to nicotinamide (NAM) and nicotinic acid (NA) due to its direct phosphorylation to nicotinamide mononucleotide (NMN) bypassing rate-limiting steps in the salvage pathway. Contains no significant macronutrients (negligible calories, no protein, fat, carbohydrates, or fiber). Inactive ingredients typically include microcrystalline cellulose, hypromellose (vegetarian capsule), and vegetable magnesium stearate. No vitamins or minerals beyond the B3-related activity of NR itself. The product is patented as NIAGEN® (ChromaDex's proprietary NR chloride), with identity and purity verified via third-party testing. Does not contain caffeine, stimulants, sugars, gluten, nuts, or artificial colors. Peak plasma NR metabolite levels occur approximately 1–3 hours post-ingestion. NR is water-soluble; excess is metabolized and excreted renally, primarily as methylated nicotinamide metabolites (e.g., N-methyl-2-pyridone-5-carboxamide and N-methyl-nicotinamide).

Preparation & Dosage

Recommended dosage is 300 mg per day. Consult a healthcare provider before use.

Synergy & Pairings

Resveratrol, Quercetin, Alpha Lipoic Acid

Safety & Interactions

Nicotinamide riboside is generally well-tolerated with mild side effects including nausea, fatigue, and headaches at doses above 1000mg daily. No significant drug interactions have been reported, though it may theoretically interact with medications affecting NAD+ metabolism. Safety during pregnancy and breastfeeding has not been established. Individuals with liver disease should consult healthcare providers before use.