Cordyceps vs Soy Protein Isolate
Adaptogen vs Protein · evidence-backed comparison
- • Soy Protein Isolate has the stronger evidence base (moderate (some rcts)).
- • Soy Protein Isolate has the broader effect profile across the 9 effect categories.
- • Soy Protein Isolate has higher bioavailability (better absorption).
Side-by-side traits
| Trait | Cordyceps | Soy Protein Isolate |
|---|---|---|
Category | Adaptogen | Protein |
Active compound | Cordycepin, polysaccharides | Soy isoflavones + amino acid blend |
Form available | Capsule, Powder | Powder |
Source | fungal | plant |
Typical dose | 1–3 g daily | 25–40 g per serving |
Dose range | 1–3 g | 25–40 g |
Loading protocol | — | — |
Best taken with | with food | water or plant milk |
Best time of day | morning | post-workout |
Bioavailability How efficiently the body absorbs and utilizes the compound. | Moderate (3/5) | High (4/5) |
Onset time | Cumulative: 3–6 weeks | Acute: 45–75 min |
Half-life | — | — |
Evidence level Quality and quantity of human research. | Limited (small studies) | Moderate (some RCTs) |
Overall effect Subjective effect magnitude. | Low (2/5) | Moderate (3/5) |
Muscle / strength | Low (2/5) | High (4/5) |
Physical energy | High (4/5) | Low (2/5) |
Focus / cognition | Low (2/5) | Very Low (1/5) |
Mood / stress | Low (2/5) | Low (2/5) |
Sleep quality | Very Low (1/5) | Low (2/5) |
Immunity | High (4/5) | Low (2/5) |
Recovery Post-exercise recovery support. | Moderate (3/5) | High (4/5) |
Longevity / healthspan | Moderate (3/5) | High (4/5) |
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. | $0.60 | $0.60 |
Vegan friendly | Yes | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About Cordyceps
Medicinal mushroom that may improve VO2 max and oxygen utilization in untrained adults. Best evidence is for endurance and immune support.
About Soy Protein Isolate
Complete plant protein with all 9 EAAs. Equivalent muscle-building to whey in older adults; mild cardio-protective effects from isoflavones.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
Cordyceps safety
Common side effects:
- • Mild GI upset
- • Dry mouth
Avoid if:
- • Bleeding disorders
- • Autoimmune disease
Drug interactions:
- • Anticoagulants
- • Immunosuppressants
Soy Protein Isolate safety
Common side effects:
- • Mild estrogen-mimicking (debated, minor)
Avoid if:
- • Soy allergy
- • Hormone-sensitive cancers (consult MD)
Drug interactions:
- • Thyroid meds (levothyroxine)
Common uses
- • Endurance
- • Immune support
- • Energy
- • Lung function
Stacks well with: Lion's Mane Mushroom
Common uses
- • Vegan muscle gain
- • Heart health
- • Menopause support
Stacks well with: Creatine Monohydrate
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.