Cordyceps Militaris vs Rhodiola Rosea

Mechanism

Cordyceps contains cordycepin (3'-deoxyadenosine) and adenosine, which modulate purinergic signaling. Cordycepin activates AMPK, inhibits mTOR, and modulates adenosine receptors (A1, A2A, A3). It enhances cellular ATP production by upregulating mitochondrial biogenesis genes and improving oxygen utilization efficiency. Cordyceps increases EPO production (erythropoietin) via HIF-1alpha stabilization, enhancing oxygen-carrying capacity. Beta-glucans (1,3/1,6) activate innate immune cells via Dectin-1 and complement receptor 3 (CR3). It also relaxes bronchial smooth muscle and enhances adrenal hormone production.

Standard Dosing

1000-3000mg daily (fruiting body extract) or 500-1000mg (concentrated 10:1 extract)

Timing

Morning or pre-workout (energizing). Avoid evening dosing.

Cycle Duration

Cycle 8-12 weeks on, 2 weeks off, or continuous

Side Effects

• Mild GI upset
• Dry mouth
• Insomnia if taken late
• Rare: nausea
• Rare: allergic reaction in mold-sensitive individuals

Contraindications

• Autoimmune conditions (immunostimulatory)
• Bleeding disorders
• Pre-surgery (discontinue 2 weeks prior)

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Mechanism

Rhodiola's key bioactives are rosavin (unique to R. rosea), salidroside, and tyrosol. It modulates the HPA axis stress response by inhibiting cortisol release and stress-activated protein kinases (SAPKs/JNK). Salidroside activates AMPK, enhances mitochondrial biogenesis via PGC-1alpha, and stimulates glucose uptake. Rhodiola inhibits monoamine oxidase A and B (MAO-A, MAO-B), increasing synaptic serotonin, dopamine, and norepinephrine levels. It also stimulates Nrf2 antioxidant defense, increases erythropoietin (EPO) production, and enhances beta-endorphin levels during exercise.

Standard Dosing

200-400mg daily (standardized to 3% rosavins, 1% salidroside)

Timing

Morning and/or early afternoon on empty stomach. AVOID evening dosing (stimulating). Take 30 min before meals.

Cycle Duration

Cycle 8-12 weeks on, 2 weeks off

Side Effects

• Insomnia (if taken late)
• Irritability
• Restlessness
• Dry mouth
• Dizziness
• Vivid dreams

Contraindications

• Bipolar disorder (may trigger mania)
• MAOI therapy
• Severe anxiety (stimulating effect may worsen)
• Pregnancy/lactation

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