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)
Zinc
Essential trace mineral for 300+ enzymes. Critical for testosterone, immune function, protein synthesis. Most athletes a
Evidence: strong (500+ studies)
Side-by-Side Comparison
| Whey Protein | Zinc | |
|---|---|---|
| Category | protein | minerals |
| Evidence Level | strong | strong |
| Studies | 800+ | 500+ |
| Dosage | 20-40 g | 15-40 mg |
Stack Compatibility
Whey Protein: Creatine, Casein (before bed), Dextrose (post-workout insulin spike)
Zinc: Magnesium (sleep + hormone synergy), Vitamin D3, Copper (if long-term Zn use), Boron
Which Should You Choose?
Both serve different purposes. Choose based on your priority.