Source comparison
MK-677 with Coffee Safety: Full Comparison
MK-677 + immediate coffee (within 30 min) 60–70% of baseline High. Cortisol peaks during GH window Easy to implement but suboptimal Not recommended for efficacy-focused protocols MK-677 → 90-min wait → coffee 85–95% of baseline Minimal. Cortisol rises after GH
This comparison does not assign a generated winner or score.
- MK-677 + immediate coffee (within 30 min)
- 60–70% of baseline
- High. Cortisol peaks during GH window
- Easy to implement but suboptimal
- Not recommended for efficacy-focused protocols
- MK-677 → 90-min wait → coffee
- 85–95% of baseline
- Minimal. Cortisol rises after GH pulse completes
- Requires morning schedule flexibility
- Standard practice in metabolic research
- Evening MK-677 (3+ hours post-caffeine)
- 95–100% of baseline
- None. Cortisol normalized before dosing
- Best for night dosing preference
- Optimal for maximizing GH response
- MK-677 + non-cortisol stimulants (theanine, rhodiola)
- 90–100% of baseline
- None. No HPA axis activation
- Requires alternative stimulant sourcing
- Preferred compromise for morning alertness needs