Quick Verdict
Whey Protein
Fast-digesting complete protein derived from milk. Richest natural source of BCAAs, especially leucine (key mTOR activat
Evidence: strong (800+ studies)
Ashwagandha (KSM-66)
Ayurvedic adaptogen herb, most researched for cortisol reduction, testosterone support, and stress resilience.
Evidence: strong (40+ studies)
Side-by-Side Comparison
| Whey Protein | Ashwagandha (KSM-66) | |
|---|---|---|
| Category | protein | adaptogens |
| Evidence Level | strong | strong |
| Studies | 800+ | 40+ |
| Dosage | 20-40 g | 300-600 mg |
Stack Compatibility
Whey Protein: Creatine, Casein (before bed), Dextrose (post-workout insulin spike)
Ashwagandha (KSM-66): Magnesium, L-Theanine, Rhodiola Rosea, Zinc
Which Should You Choose?
Both serve different purposes. Choose based on your priority.