Casein Protein vs DHEA
Protein vs Hormone · evidence-backed comparison
- • Casein Protein has the stronger evidence base (strong (multiple rcts / meta-analyses)).
- • Casein Protein has the broader effect profile across the 9 effect categories.
- • DHEA is cheaper per serving ($0.25 vs $0.95).
- • Casein Protein has a slightly cleaner safety profile.
Side-by-side traits
| Trait | Casein Protein | DHEA |
|---|---|---|
Category | Protein | Hormone |
Active compound | Casein micelles | Dehydroepiandrosterone |
Form available | Powder | Capsule, Tablet |
Source | animal | synthetic |
Typical dose | 25–40 g per serving | 10–50 mg daily |
Dose range | 25–40 g | 10–50 mg |
Loading protocol | — | — |
Best taken with | water or milk | morning |
Best time of day | evening | morning |
Bioavailability How efficiently the body absorbs and utilizes the compound. | High (4/5) | High (4/5) |
Onset time | Slow: 4–7 hour drip-feed of amino acids | Cumulative: 2–8 weeks |
Half-life | ~5 hours | ~10 hours |
Evidence level Quality and quantity of human research. | Strong (multiple RCTs / meta-analyses) | Moderate (some RCTs) |
Overall effect Subjective effect magnitude. | Moderate (3/5) | Moderate (3/5) |
Muscle / strength | High (4/5) | Low (2/5) |
Physical energy | Low (2/5) | Moderate (3/5) |
Focus / cognition | Very Low (1/5) | Low (2/5) |
Mood / stress | Low (2/5) | Moderate (3/5) |
Sleep quality | Moderate (3/5) | Very Low (1/5) |
Immunity | Moderate (3/5) | Low (2/5) |
Recovery Post-exercise recovery support. | High (4/5) | Low (2/5) |
Longevity / healthspan | Moderate (3/5) | Moderate (3/5) |
Safety rating 5 = exceptionally well-tolerated; 1 = significant risk profile. | Very High (5/5) | Low (2/5) |
Price per serving Approximate USD per typical daily dose. | $0.95 | $0.25 |
Vegan friendly | No | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About Casein Protein
Slow-digesting milk protein that drip-feeds amino acids for hours. Best taken before bed to support overnight muscle protein synthesis.
About DHEA
Adrenal steroid hormone that converts to androgens and estrogens. Useful for adrenal insufficiency and aging women, but a banned substance for athletes.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
Casein Protein safety
Common side effects:
- • Bloating
- • Gas (lactose)
Avoid if:
- • Milk allergy
- • Casein sensitivity
Drug interactions:
- • Levodopa
DHEA safety
Common side effects:
- • Acne
- • Oily skin
- • Hair loss
- • Mood changes
- • Hormonal effects
Avoid if:
- • Hormone-sensitive cancers
- • PCOS
- • Pregnancy
- • Banned in NCAA / WADA sports
Drug interactions:
- • Hormones
- • Anticoagulants
- • Antidepressants
Common uses
- • Overnight recovery
- • Satiety
- • Anti-catabolic
Stacks well with: Zinc
Common uses
- • Adrenal insufficiency
- • Hormone support in aging
- • Mood / energy in low-DHEA
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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.