Source comparison
MK-677 Empty Stomach Comparison: Clinical Context
Morning Fasted 90–120 min post-dose Moderate-High (40–50% of users) Very High Metabolic research, intermittent fasting protocols, users with established tolerance Maximises GH pulse amplitude but requires titration. Not recommended for first-time users Evening
This comparison does not assign a generated winner or score.
- Morning Fasted
- 90–120 min post-dose
- Moderate-High (40–50% of users)
- Very High
- Metabolic research, intermittent fasting protocols, users with established tolerance
- Maximises GH pulse amplitude but requires titration. Not recommended for first-time users
- Evening Fed (with dinner)
- 150–180 min post-dose
- Low (10–15% of users)
- Moderate
- Sleep architecture studies, new users, chronic administration
- Most tolerable long-term approach. Small reduction in peak GH offset by better adherence
- Pre-Workout Fasted
- High (50–60% of users)
- Extreme
- Acute GH signaling research only
- Compounds exercise-induced nausea. Rarely used outside controlled studies
- Bedtime with Small Snack
- Low-Moderate (15–25% of users)
- Moderate-High (may disrupt sleep onset)
- Sleep-focused protocols in users sensitive to evening hunger
- Balances sleep benefit with manageable GI side effects