A standard creatine loading phase calls for about 20 grams per day, split into four 5-gram servings, for 5 to 7 days. This rapidly fills your muscles’ creatine stores so you can start feeling the performance benefits within the first week rather than waiting a month. Here’s how to dial in the dosing, what to expect, and whether loading is even necessary.
The Standard Loading Dose
Most sports nutrition guidelines recommend 20 grams of creatine monohydrate per day during the loading phase. That number works well for the average person, but it’s actually a rough estimate based on body weight. A more precise approach, outlined by the International Society of Sports Nutrition, is to multiply your weight in kilograms by 0.3. Someone weighing 80 kg (176 pounds) would take 24 grams per day, while a 60 kg (132-pound) person would take 18 grams. If you’re close to average size, 20 grams is a perfectly fine target.
The loading phase lasts 5 to 7 days. During this window, your muscles accumulate creatine much faster than they would at a lower dose, reaching full saturation by the end of the week. Once loading is complete, you drop down to a maintenance dose of 3 to 5 grams per day, which is enough to keep your stores topped off indefinitely.
How to Split Your Doses
Don’t take all 20 grams at once. Splitting it into four equal servings of 5 grams, spread throughout the day, is the standard recommendation. Taking it all in one sitting dumps a large amount into your gut at once, which your body can’t fully absorb and is more likely to cause stomach issues. Spacing doses out, say with breakfast, lunch, an afternoon snack, and dinner, gives your body time to process each serving.
Taking each dose with a meal or a carb-containing drink can improve absorption slightly, since the insulin response from food helps shuttle creatine into muscle cells. But this is a minor optimization. Consistency matters more than perfect timing.
Side Effects During Loading
Loading-phase doses are high enough that digestive discomfort is common. A 2025 study tracking symptoms over 28 days found that about 79% of all participants reported some kind of gastrointestinal issue, with bloating, water retention, puffiness, and stomach discomfort being the most frequent complaints. Participants taking loading doses reported symptoms that were more frequent and more severe compared to those on a standard daily dose, though the difference didn’t quite reach statistical significance. The pattern still suggests a dose-dependent effect: more creatine at once, more gut trouble.
Water retention is the other hallmark of loading. Creatine pulls water into muscle cells, which is part of how it works. During the loading phase, it’s normal to gain 2 to 4 pounds of water weight in the first week. This isn’t fat, and for most people it actually makes muscles look slightly fuller. If bloating or stomach discomfort bothers you, the fix is simple: skip the loading phase entirely (more on that below) or extend the loading period to 10 days at a lower daily dose, around 10 grams split into two servings.
Do You Actually Need to Load?
Loading is optional. If you skip it and just take 3 to 5 grams per day from the start, your muscles will still reach full saturation. It just takes about 3 to 4 weeks instead of one. The end result is identical. Loading exists for people who want faster results, whether that’s because they’re starting a new training program, prepping for a competition, or simply impatient.
If you’ve tried loading before and hated the bloating or stomach issues, there’s no performance penalty for going straight to the maintenance dose. You’ll get to the same place with fewer side effects along the way.
After Loading: The Maintenance Phase
Once you’ve completed 5 to 7 days of loading, switch to 3 to 5 grams per day. At this dose, your muscles stay fully saturated and you replace the small amount of creatine your body breaks down daily. Most people do fine at 5 grams. If you’re on the smaller side, 3 grams is likely sufficient.
You can take your maintenance dose at any time of day, with or without food. There’s no need to cycle on and off. Research supports continuous use for up to five years at recommended doses with no adverse effects on kidney function in healthy individuals. Creatine can temporarily raise a blood marker called creatinine, which doctors use to assess kidney health, so it’s worth mentioning your supplement use if you get bloodwork done. The kidneys themselves aren’t being harmed; the test just reads higher because of the extra creatine being processed.
Quick Reference by Body Weight
- Under 150 lbs (68 kg): About 18 to 20 g/day loading, split into 4 doses, for 5 to 7 days. Maintain at 3 g/day.
- 150 to 200 lbs (68 to 91 kg): About 20 to 27 g/day loading, split into 4 doses, for 5 to 7 days. Maintain at 5 g/day.
- Over 200 lbs (91 kg): About 27 to 30 g/day loading, split into 4 to 5 doses, for 5 to 7 days. Maintain at 5 g/day.
Creatine monohydrate is the most studied and least expensive form. Other versions (hydrochloride, buffered, liquid) haven’t shown any advantage in head-to-head comparisons, despite costing more. Stick with monohydrate powder, mix it into water or a shake, and you’re set.