Ashwagandha vs Cordyceps
Adaptogen vs Adaptogen · evidence-backed comparison
- • Ashwagandha has the stronger evidence base (moderate (some rcts)).
- • Ashwagandha has the broader effect profile across the 9 effect categories.
- • Ashwagandha is cheaper per serving ($0.30 vs $0.60).
- • Ashwagandha has higher bioavailability (better absorption).
Side-by-side traits
| Trait | Ashwagandha | Cordyceps |
|---|---|---|
Category | Adaptogen | Adaptogen |
Active compound | Withanolides | Cordycepin, polysaccharides |
Form available | Capsule, Powder, Liquid | Capsule, Powder |
Source | plant | fungal |
Typical dose | 300–600 mg (5% withanolides) | 1–3 g daily |
Dose range | 300–600 mg | 1–3 g |
Loading protocol | — | — |
Best taken with | with food | with food |
Best time of day | any | morning |
Bioavailability How efficiently the body absorbs and utilizes the compound. | High (4/5) | Moderate (3/5) |
Onset time | Cumulative: 4–8 weeks | Cumulative: 3–6 weeks |
Half-life | ~7 hours | — |
Evidence level Quality and quantity of human research. | Moderate (some RCTs) | Limited (small studies) |
Overall effect Subjective effect magnitude. | Moderate (3/5) | Low (2/5) |
Muscle / strength | Moderate (3/5) | Low (2/5) |
Physical energy | Moderate (3/5) | High (4/5) |
Focus / cognition | Moderate (3/5) | Low (2/5) |
Mood / stress | High (4/5) | Low (2/5) |
Sleep quality | High (4/5) | Very Low (1/5) |
Immunity | Moderate (3/5) | High (4/5) |
Recovery Post-exercise recovery support. | High (4/5) | Moderate (3/5) |
Longevity / healthspan | Moderate (3/5) | Moderate (3/5) |
Safety rating 5 = exceptionally well-tolerated; 1 = significant risk profile. | High (4/5) | High (4/5) |
Price per serving Approximate USD per typical daily dose. | $0.30 | $0.60 |
Vegan friendly | Yes | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About Ashwagandha
The most clinically-studied adaptogen. Reliably lowers cortisol, raises testosterone in stressed men, and improves sleep onset.
About Cordyceps
Medicinal mushroom that may improve VO2 max and oxygen utilization in untrained adults. Best evidence is for endurance and immune support.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
Ashwagandha safety
Common side effects:
- • Mild GI upset
- • Drowsiness
- • Increased thyroid hormone
Avoid if:
- • Hyperthyroid
- • Pregnancy
- • Autoimmune disease (theoretical)
Drug interactions:
- • Thyroid meds
- • Sedatives
- • Immunosuppressants
Cordyceps safety
Common side effects:
- • Mild GI upset
- • Dry mouth
Avoid if:
- • Bleeding disorders
- • Autoimmune disease
Drug interactions:
- • Anticoagulants
- • Immunosuppressants
Common uses
- • Stress / anxiety
- • Sleep
- • Testosterone (in stressed men)
- • Strength
Stacks well with: Rhodiola Rosea, Magnesium Glycinate
Common uses
- • Endurance
- • Immune support
- • Energy
- • Lung function
Stacks well with: Lion's Mane Mushroom
Related comparisons
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.