Creatine timing — pre-workout, post-workout, or morning?
Been on 5g creatine mono daily for ~4 months. Currently take it post-workout with my shake but I keep seeing arguments for pre-workout (insulin spike from preworkout carbs helping uptake) and morning (just consistency, doesn't matter when).
What does the actual evidence say? I know "any time consistently > optimal time inconsistently" but I want to understand the actual data before I commit to a long-term protocol.
Short answer: timing barely matters once you're saturated. The Antonio et al. 2013 study (pre vs post) found a small effect favoring post-workout for lean mass and strength, but the effect size was modest and the study had a small n. Cribb & Hayes 2006 also leaned post-workout. But — and this is the key — those studies were in subjects who were still in the loading/saturation phase. Once your muscle creatine is saturated (4-6 weeks of 3-5g/day), the timing window becomes essentially irrelevant.
So: if you've been on it 4 months, you're saturated. Take it whenever you'll actually remember to take it. Consistency >> timing.
Morning with coffee, every day for 6 years. Never missed a dose. Performance has been fine. Timing is way overthought imo — saturation is what matters and you get there in like 30 days at 5g/day no matter when you take it.
Pre-workout person here. The insulin-spike-aids-uptake argument is real but the magnitude is small. ~10% better uptake when co-ingested with ~50g carbs (Steenge et al. 2000). Practical difference? Maybe a couple grams of total muscle creatine over weeks. Not enough to plan your life around.
The "post-workout is best" claim got way overhyped from one underpowered study. Recent meta-analyses (Forbes et al. 2021) basically conclude timing doesn't reliably affect outcomes in trained subjects past the loading phase. Take it whenever, just take it.
Post-workout because it's convenient — already drinking a shake. Not because the evidence is overwhelming. Path of least resistance for consistency.
One nuance — if you take it on rest days, the post-workout question is irrelevant since there's no workout. Most people who insist on post-workout timing skip rest day doses, which is worse for saturation than just taking it consistently every morning. The "every day forever" habit beats the "optimal window" habit.
I tell my clients: dose-time-of-day is a 1% lever and dose-consistency-across-weeks is a 99% lever. Pick the time you will not forget. That's the optimal time.
This is super helpful — switching to morning with my coffee. The "time I won't forget" framing actually answers the question. Thanks all.