Betaine Anhydrous vs NMN

Performance vs Nootropic · evidence-backed comparison

Quick take
  • Betaine Anhydrous has the stronger evidence base (moderate (some rcts)).
  • NMN has the broader effect profile across the 9 effect categories.
  • Betaine Anhydrous is cheaper per serving ($0.25 vs $1.80).
  • Betaine Anhydrous has a slightly cleaner safety profile.
  • Betaine Anhydrous has higher bioavailability (better absorption).

Side-by-side traits

TraitBetaine AnhydrousNMN
Category
PerformanceNootropic
Active compound
TrimethylglycineNicotinamide mononucleotide
Form available
Powder, CapsuleCapsule, Powder, Liquid
Source
plantsynthetic
Typical dose
2.5 g daily250–1000 mg daily
Dose range
2.5 g250–1000 mg
Loading protocol
Best taken with
with mealsempty stomach or with food
Best time of day
anymorning
Bioavailability
How efficiently the body absorbs and utilizes the compound.
High (4/5)Moderate (3/5)
Onset time
Cumulative: 2–6 weeksCumulative: 4–12 weeks
Half-life
~14 hours
Evidence level
Quality and quantity of human research.
Moderate (some RCTs)Preliminary (animal / pilot studies)
Overall effect
Subjective effect magnitude.
Moderate (3/5)Moderate (3/5)
Muscle / strength
Moderate (3/5)Low (2/5)
Physical energy
Moderate (3/5)High (4/5)
Focus / cognition
Low (2/5)Moderate (3/5)
Mood / stress
Low (2/5)Low (2/5)
Sleep quality
Very Low (1/5)Very Low (1/5)
Immunity
Very Low (1/5)Low (2/5)
Recovery
Post-exercise recovery support.
Moderate (3/5)Moderate (3/5)
Longevity / healthspan
Moderate (3/5)Very High (5/5)
Safety rating
5 = exceptionally well-tolerated; 1 = significant risk profile.
Very High (5/5)High (4/5)
Price per serving
Approximate USD per typical daily dose.
$0.25$1.80
Vegan friendly
YesYes
Gluten free
YesYes
3rd-party tested
YesYes

About Betaine Anhydrous

Methyl donor that supports homocysteine recycling and may modestly boost power output. Often paired with creatine in pre-workout formulas.

Active compound: Trimethylglycine
Forms: Powder, Capsule
Onset: Cumulative: 2–6 weeks
powermethylationliverhomocysteine

About NMN

NAD+ precursor with strong rodent longevity data. Human evidence is preliminary but growing for energy, metabolic health, and athletic performance.

Active compound: Nicotinamide mononucleotide
Forms: Capsule, Powder, Liquid
Onset: Cumulative: 4–12 weeks
NAD+longevityenergyanti-aging

Betaine Anhydrous safety

Common side effects:

  • Fishy body odor (rare)

Avoid if:

  • Kidney disease

NMN safety

Common side effects:

  • GI upset (rare)
  • Flushing

Avoid if:

  • Pregnancy (insufficient data)

Drug interactions:

  • Gout meds (increases uric acid in some)

Common uses

  • Power output
  • Homocysteine support
  • Liver health

Stacks well with: Creatine Monohydrate, Vitamin B12 (Methylcobalamin)

Common uses

  • Anti-aging
  • Energy
  • Metabolic health
  • Athletic recovery

Stacks well with: Resveratrol, tmg

Medical disclaimer

SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements — especially if you are pregnant, breastfeeding, take prescription medication, or have a chronic condition.