Pre-Workout for Morning Workouts (Fasted)

Training at 5 or 6 AM is a different physiological problem. Cortisol is high, glycogen is partially depleted, the gut is empty, and the central nervous system needs a faster wake-up than your job does. Here's the protocol that protects performance without trashing the stomach.

What Works Fasted

• Caffeine, 100–300 mg. Sip in water or coffee 30–45 min pre-session. Effective even fasted; absorbs within 30 min.
• L-Theanine, 200 mg. Smooths caffeine's jitter, sharpens focus.
• L-Tyrosine, 1–2 g. Supports dopamine/norepinephrine when sleep was short.
• Creatine, 5 g. Timing doesn't matter, but combining with your AM water reminds you to take it.
• Electrolytes (500 mg sodium, 200 mg potassium, 100 mg magnesium) — overnight dehydration is real, especially in summer.

What to Skip Fasted

• Beta-alanine at 3+ g doses — paresthesia (tingling) is amplified on an empty stomach. Take with breakfast post-workout instead.
• Citrulline malate > 6 g — common GI distress fasted; lower to 3–4 g or move to post-workout meal.
• High-stim, high-pump pre-workouts with 10+ ingredients — most cause heartburn or jitter when fasted.
• Sugar-loaded pre-workouts — risk of rebound hypoglycemia 30–45 min in.

Cortisol and Fasted Training

Morning cortisol is naturally peaked (your "cortisol awakening response"). Training spikes it further. This is fine acutely — that's how cortisol works — but chronically can disrupt recovery if every morning is high-intensity. Two practical guardrails:

• Limit hard fasted sessions to 4–5x/week max if training daily.
• Eat within 60 minutes post-workout: 30–40 g protein + 0.5–1 g/kg carbs.

The Simple 5 AM Stack

1. Wake. 500 ml water with electrolytes.
2. 200 mg caffeine + 200 mg L-theanine + 1.5 g tyrosine + 5 g creatine.
3. Optional: 1 banana or 30 g dates if session is >75 min or HIIT.
4. Train.
5. 30 g whey + 50 g carbs within an hour.

The Bottom Line

Fasted training works — if you fuel the central nervous system and hydrate aggressively, and skip the gut-bombing ingredients that work fine post-meal.