Fadogia Agrestis vs Maca Root (Gelatinized)

Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.

Fadogia AgrestisMaca Root (Gelatinized)
CategoryAdaptogensAdaptogens
Standard Dose400-600mg daily1500-3000mg gelatinized maca daily
TimingMorning with food.Morning with breakfast. Can be added to smoothies.
Cycle DurationCycle 4-8 weeks on, 2-4 weeks off (limited long-term safety data)Cycle 12 weeks on, 4 weeks off, or ongoing
Evidence Levelanimal_plus_anecdotalmoderate_human
A

Fadogia Agrestis

Adaptogens

Mechanism

Fadogia agrestis stem extract contains saponins and alkaloids that appear to increase luteinizing hormone (LH) release from the anterior pituitary, stimulating Leydig cell testosterone production. Animal studies suggest it may also have direct effects on testicular steroidogenic enzymes and may increase testicular weight. The saponin content may modulate gonadotropin-releasing hormone (GnRH) pulse frequency. The aphrodisiac effects are likely mediated through increased testosterone and possibly direct effects on dopaminergic and nitrergic pathways.

Standard Dosing

400-600mg daily

Timing

Morning with food.

Cycle Duration

Cycle 4-8 weeks on, 2-4 weeks off (limited long-term safety data)

Side Effects

  • Limited human safety data
  • Testicular toxicity at high doses in animal studies
  • Potential liver stress
  • GI discomfort
  • Insomnia

Contraindications

  • Hormone-sensitive cancers
  • Testicular pathology
  • Pregnancy/lactation
  • Children/adolescents
  • Liver disease

Best Stacking Partners

Tongkat AliAshwagandhaBoronZinc

Mechanism

Maca (Lepidium meyenii) contains unique macamides and macaenes (fatty acid derivatives), glucosinolates, and alkaloids. Unlike most adaptogens, maca does not directly affect testosterone, estrogen, or cortisol levels in blood. Instead, it appears to work as a 'hormonal normalizer' by acting on the hypothalamic-pituitary axis, modulating GnRH pulsatility and improving receptor sensitivity. Macamides interact with the endocannabinoid system (FAAH inhibition) and may modulate GABA and opioid pathways. Maca improves sexual function and desire through mechanisms independent of direct hormone elevation — likely central nervous system pathways.

Standard Dosing

1500-3000mg gelatinized maca daily

Timing

Morning with breakfast. Can be added to smoothies.

Cycle Duration

Cycle 12 weeks on, 4 weeks off, or ongoing

Side Effects

  • GI upset/bloating (raw maca — gelatinized is much better tolerated)
  • Insomnia
  • Mood changes
  • Increased heart rate (rare)
  • Hormonal acne (rare)

Contraindications

  • Hormone-sensitive cancers (glucosinolate metabolites may have hormonal effects)
  • Severe hypothyroidism (goitrogenic potential)

Best Stacking Partners

AshwagandhaTongkat AliTribulusZinc

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