NMN and Brain Health: Can It Improve Cognitive-Related Research?

Energy, muscle function, skin — these are the benefits most people associate with NMN. But one of the most interesting and less discussed areas of NMN research relates to the brain. Here's what the science says about NMN and cognition-related research.

Why the Brain Needs NAD+

The brain is the most metabolically demanding organ in the body. It accounts for roughly 20% of your body's total energy consumption despite representing only 2% of body weight. This enormous energy demand makes the brain highly sensitive to NAD+ availability — when NAD+ declines, brain energy metabolism suffers disproportionately.

Beyond energy, NAD+ plays critical roles in brain health through:

• Neuronal DNA repair: PARP enzymes use NAD+ to repair DNA damage in neurons — damage that accumulates continuously from oxidative stress
• SIRT1 and neuroprotection: SIRT1 in the brain regulates neuronal survival, synaptic plasticity, and the expression of BDNF (brain-derived neurotrophic factor) — a protein essential for learning and memory
• Mitophagy: The clearance of damaged mitochondria in neurons — critical for preventing neurodegeneration — is NAD+-dependent

What the Research Shows

Animal studies have shown striking results: NMN supplementation in aged mice improved cognitive performance, memory consolidation, and spatial navigation. At the cellular level, these improvements correlated with restored mitochondrial function in hippocampal neurons and reduced neuroinflammation.

Human data is more limited but encouraging. Several NMN trials have included cognitive assessments as secondary outcomes, with participants reporting improved mental clarity, focus, and reduced mental fatigue — particularly in older adults.

NMN and Alzheimer's Research

Some of the most intriguing preclinical research relates to Alzheimer's disease. Studies in mouse models of Alzheimer's have shown that NMN supplementation reduced amyloid plaque accumulation, improved cognitive performance, and reduced markers of neuroinflammation. This doesn't mean NMN treats or prevents Alzheimer's in humans — we're far from that conclusion — but it points to mechanistic pathways worth watching.

Stacking for Brain Health

For comprehensive brain support, NMN Plus pairs well with Shilajit Complex. The Lion's Mane Mushroom in our Shilajit formula supports NGF (nerve growth factor) production, which promotes neuronal maintenance and cognition-related research through a complementary mechanism to NMN's NAD+-based pathway.

Shop NMN Plus → Shop Shilajit Complex →

Written by Dr Chun Tang, MBChB, MRCGP — founder of Little Ox and practising UK GP.