Is NMN really effective? A comparison of three NAD+ supplements

Does NMN really work?

This issue has been the subject of debate for several years.

In January 2026, "Nature Metabolism" published a direct comparative experiment - three NAD+ precursors, NR, NMN and nicotinamide (Nam), were combined and 65 healthy adults took them continuously for 14 days to see which one was truly effective.

The result came as a surprise to many: it wasn't a "choice among three", but rather the gut microbiota made the decision.

NMN and NR both increased NAD+ levels by two times.

The study divided 65 healthy adults into four groups:

NR group: 1 gram nicotinamide riboside per day

NMN group: 1 gram nicotinamide mononucleotide per day

Nam group: 0.5 grams nicotinamide per day

Placebo group

The core findings after 14 consecutive days:

Both NR and NMN significantly increased the NAD+ level in whole blood, reaching approximately twice the original level overall.

The improvement effect of the Nam group was significantly weaker than that of the other two groups.

But what is even more interesting is the subsequent discovery:

When NR and NMN enter the body, they do not simply enter the bloodstream directly.

Instead, they are first "processed" by the gut bacteria before they can exert their effects.

That is to say, the health of the gut microbiota directly determines whether NAD+ supplements can be effective.

Exercise can delay "molecular aging" of muscles.

On July 3, 2026, the journal "Nature Aging" published a study from the University of Amsterdam - physical exercise can delay the molecular aging of human muscles.

The research team conducted muscle biopsies on young and elderly adults before and after an extremely intense exercise session, and then carried out transcriptomics, lipidomics and metabolomics analyses.

Key finding:

The expression of genes related to cellular respiration and energy metabolism in elderly individuals is lower than that in younger individuals.

However, for the elderly who have undergone training, 50% of the age-related differences have disappeared.

The gene expression profile is close to that of younger individuals.

Mitochondrial respiration, lipid metabolism, stress response are closely related to NAD+ biology.

Pharmacist's interpretation: Exercise is not just about burning calories;

it actually rewrites the aging trajectory at the molecular level.

NAD+ supplements combined with regular exercise might be the most reliable anti-aging strategy currently available.

code of heart aging has been cracked: NAD+ is key switch

On June 17, 2026, the research team led by Professor Li Xi from Chongqing Medical University was published in the top international journal "Circulation", presenting the first complete revelation of a cascade damage pathway that drives heart aging:

The level of NAD+ in aged myocardial cells continues to decline.

The reduction of NAD+ interferes with the activity of the V-ATPase proton pump.

The dysfunction of the lysosome-mitochondria axis.

The imbalance of cardiolipin homeostasis and the decline of cardiac function.

The research team has identified a potential "molecular switch" that offers a new target for delaying heart aging.

Maintaining the level of NAD+ may be a key strategy for protecting the heart.

Is "nicotine anti-aging" really true?

Recently, the research conducted by Li Xiang's team from the Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences and published in "Nature Communications" did indeed reveal:

Chronic low-dose pure nicotine can activate the NAD+ synthesis pathway, improving metabolism and delaying aging.

But please note the three absolute prerequisites:

The experiment used high-purity and low-dose nicotine monomers, not cigarettes.

It was only verified in experiments on mice and has not yet been confirmed in humans.

Cigarettes contain hundreds of harmful substances. It is an indisputable fact that smoking can cause cancer.

"Smoking to delay aging" is a fatal misconception.

To increase NAD+ levels, it is safer and more reliable to supplement NMN/NR+ and engage in exercise.

Additionally, on July 9, 2026, Elysium Health published a study in the journal "Frontiers in Aging":

The NAD+ supplement Basis can significantly alleviate menopausal symptoms and regulate the estrogen balance (with an increased E2/E1 ratio).

This provides a new approach for middle-aged women to combat aging.

Pharmacist recommendation: Excellent product for anti-aging and health preservation

NAD+ precursor + Antioxidant + Exercise assistance, a three-in-one anti-aging solution

①NMN - Nicotinamide Mononucleotide

Nature subsidiary journal confirms: Taking 1g daily for 14 consecutive days, the NAD+ level in the blood increases by approximately 2 times.

Combined with exercise, the effect is even better.

It is one of the NAD+ precursors with the most solid research evidence currently.

② Coenzyme Q10 Soft Capsules

The "spark plug" for energy metabolism of cardiac muscle cells.

Research from Chongqing Medical University has confirmed that the decline of NAD+ is the key to cardiac aging, and coenzyme Q10 works in synergy with NAD+ to protect mitochondrial function.

③ Deep-sea fish oil Omega-3

Anti-inflammatory + Protects cardiovascular system + Improves lipid metabolism.

The research in Nature Aging reveals that lipid metabolism is closely related to aging, and Omega-3 is a fundamental anti-aging nutrient.

④ Steam eye mask

Anti-aging is not just about taking supplements.

The quality of sleep is the foundation.

Steam eye masks relieve eye fatigue, help with sleep and relaxation, allowing the body to repair itself during sleep.

2026 Anti-Aging Action List

3-5 times a week of moderate-intensity exercise (each session lasting more than 30 minutes)

Pay attention to NAD+ levels and consider supplementing with NMN/NR

Daily intake of coenzyme Q10 (especially for those over 40 years old)

Deep-sea fish oil + vitamin D as a basic anti-aging combination

Ensure 7-8 hours of high-quality sleep

Control sugar and carbohydrates intake, reduce AGEs (advanced glycation end products)

Stay away from cigarettes and don't believe the "nicotine anti-aging" rumors