Model: 22-month-old male C57BL/6NIH mice 
Dosage: 400 mg/kg of NR for eight weeks, administered in food

Treating aged mice with the NAD+ (nicotinamide adenine dinucleotide) precursor NR (nicotinamide riboside) improves memory and reduces pro-inflammatory immune cells.

Senior members of the research team, Dr. Bruce R. Troen and Dr. Kenneth L. Seldeen (image: buffalo.edu).  

Brain &amp; Neurons

Elevating the naturally occurring molecule NAD+ (nicotinamide adenine dinucleotide) improves memory and corrects gene-splicing patterns in a worm and a mouse model for dementia. 

Senior author on the study, Dr. Evandro Fang (front left), with some students (image: evandrofanglab.com)

Participants: Adults over the age of 60
Dosage: 3,750 mg of niacin twice daily (after gradual dose increase), 150 mg of dihydroberberine twice daily, 50 mg of taxifolin (with 500 mg of vitamin C and 15 mg of zinc) twice daily, 50 mg of tocotrienols twice daily

A combination of supplements, including the NAD+ precursor nicotinic acid, improves cholesterol, allowing some participants to cease taking statins.  

Study conducted by Professor Emeritus Joseph Keenan, MD, at the University of Minnesota. 

Nicotinic Acid

Participants: Healthy middle-aged to older adults (average age: ~53 years)
Dosage: 1,000 mg/day of urolithin A for 28 days

Supplementing healthy adults with urolithin A —a compound produced by our gut bacteria— counters signs of age-related immune system decline.  

Principal investigator Dr. Florian R. Greten (image: hessen-schafft-wissen.de).

Immunity

Model: Male C57BL/6 mice given continuous alcohol for 4 weeks 
Dosage: 350 mg/kg/day of nicotinamide riboside chloride for 2 weeks

The NAD+ (nicotinamide adenine dinucleotide) precursor nicotinamide riboside chloride (NRC) counteracts neuronal damage caused by alcohol consumption in mice. 

Search Result: dementia

NAD+ Supplement Improves Memory & Brain Immune Cells, New Study Reveals

New Research: Correcting Gene Splicing with NAD+ Boosts Memory

NAD+ Boosting Supplement Challenges Cholesterol-Lowering Statins in Anti-Aging Research

Urolithin Supplement Counters Immune System Aging, New Human Trial Shows

NAD+ Supplement Counters Alcohol-Induced Brain Aging, According to New Study