Category Archives: Aging & Longevity

NMN Triples NAD+ Levels in Humans

(Pencina et al., 2022 | The Journals of Gerontology) NMN doses of 1,000 mg taken once daily doubles NAD+ levels (middle graph). When taken twice daily, NMN triples NAD+ levels (right graph). Dr. David Sinclair is a co-founder of Metrobiotech, whose NMN product MIB-626 was used in this research published Feb 19 2022. MIB-626, an […]

Why Dr. Sinclair takes NMN instead of NR

There has been little, if any, head to head research published comparing Nicotinamide Mononucleotide (NMN) and Nicotinamide Riboside (NR). However, Dr. Sinclair recently said he takes NMN instead of NR based on research he did that found NR did not work at all, while NMN increased the endurance in older mice such that they were […]

Lower Inflammation to Raise NAD+

Restoring NAD+ levels is crucial to maximize health as we age. Many supplements that decrease systemic inflammation also have direct and indirect effect on NAD+ levels. Supplements to Restore NAD+ NAD+ and NAD+ precursor supplements Increase endogenous NAD+ production Decrease NAD+ consumption in the body NAD+ and NAD+ Precursors We offer the most complete range […]

David Sinclair’s Supplement Stack and Longevity Strategy

David Sinclair, a professor at Harvard University is perhaps the foremost expert in the growing field of longevity research.  In a recent video, titled “Dr David Sinclair – Defeating Ageing & Living Longer | Modern Wisdom Podcast 343” [The video has been made private by the uploader], Dr. Sinclair discusses the supplements he is currently […]

NAD+ and the Hallmarks of Aging Series – Part 8: Stem Cell Exhaustion

Stem cells – the source of tissue homeostasis In human tissue, there are various highly differentiated cells specialized to perform distinct functions. For example, there are red blood cells for oxygen delivery, muscle cells for movement, neural cells for signal transduction, etc.  These cells are vital for life but they are also prone to various […]

Trimethylglycine (TMG) for Restoring Methylation, Homocysteine Levels, Heart Health, and Liver Function

TMG – the Insurance Policy Against Loss of Methyl Groups TMG is one of the most important ways to restore methyl groups because as the name implies, it has three methyl groups to donate. “The reason I take glycine, specifically trimethylglycine is to counter what I think may be going on with an NAD+ booster”… […]

NAD+ and the Hallmarks of Aging Series – Part 6: Mitochondrial Dysfunction

Mitochondria – More than Powerplants in Cells Mitochondria are the large organelles that exist in most human cells. They are the critical organelles that generate ATP through the respiratory chain and produce the intermediate metabolites that are essential to various cellular processes.  During aging, the respiratory chain losses its efficacy and the membrane of the […]

Why Too Much NMN or NR is Bad

If not protected, NMN and NR supplements are almost entirely degraded to NAM (Nicotinamide) before reaching tissues beyond the liver. While NAM is beneficial for many health conditions, excessive NAM levels can be detrimental to your health. “high doses of NAM can cause genomic instability, reduce cellular methyl pools, and cause insulin resistance through methylated […]

Reduced Nicotinamide Mononucleotide – A Tale of Four NAD+ Precursors

NAD+ Precursors and Healthy Aging Nicotinamide adenine dinucleotide (NAD+) is a coenzyme found in all living cells. It is a critical coenzyme for energy metabolism and also serves as the substrate for enzymes such as the sirtuins. One of the hallmarks of aging is declining cellular NAD+ levels.  Moreover, many studies carried out in different […]

NAD+ and the Hallmarks of Aging Series – Part 5: Deregulated Nutrient Sensing

Overview Currently, available evidence strongly supports the idea that anabolic signaling (the signal that promotes growth and proliferation) accelerates aging, and decreased nutrient signaling extends longevity (Fontana et al., 2010). Further, a pharmacological manipulation that mimics a state of limited nutrient availability, such as rapamycin, can extend longevity in mice (Harrison et al., 2009). In […]

Bacteria in Gastrointestional Tract Metabolize NMN and Impact NAD+ Metabolome

This recently published research by Drs. Lindsay Wu, David Sinclair and others examined the pathways that oral NMN takes to becoming NAD+ in mice. It confirmed some aspects of earlier research, and also made some surprising new findings. https://assets.researchsquare.com/files/rs-87047/v1_stamped.pdf Several experiments were completed that all measured NAD+ metabolites in the Gastrointestinal Tract (GIT) and Liver, […]

CD73 utilization shows importance of NMN to restore NAD+

This recent study found that in endothelial cells, the extracellular conversion of NMN to NR by CD73 enzyme in the cell membrane is a key mechanism to maintain intracellular NAD+ Reversal of endothelial dysfunction by nicotinamide mononucleotide via extracellular conversion to nicotinamide riboside Like prior studies (1), they found that this transport method did not […]