I get asked about creatine more than almost any other supplement. Usually with a little suspicion attached — like it’s something a 22-year-old bodybuilder takes, not something a veteran managing an old knee injury or working on their strength in their 50s should bother with.
That reputation isn’t fair. Creatine monohydrate is one of the most studied supplements out there, and a lot of that research has nothing to do with bodybuilding at all.
What it’s actually shown to do
Recent research on older adults found that creatine, combined with regular exercise, helped with muscle mass, muscle size, strength, bone density, and general function. Some studies also found benefits for memory and cognitive function. That last part matters for a lot of veterans dealing with TBI history or just general brain fog — creatine isn’t only a muscle supplement anymore.
There’s also a newer idea floating around called the “muscle-brain axis” — the idea that keeping your muscles strong and keeping your brain sharp aren’t separate goals, they’re connected. Creatine research is starting to explore that connection directly.
The catch: it doesn’t work by itself
Creatine isn’t magic. Studies are pretty clear that creatine alone, without exercise, doesn’t do much for strength or function. It works with training, not instead of it. If you’re doing PT, rehab, or strength work, creatine can support that effort. If you’re not doing anything active, don’t expect much from the powder alone.
How people typically take it
Most research uses one of two approaches:
- A “loading phase” of 20 grams a day for about a week, then dropping to 5–7 grams a day
- Or just starting at 5–7 grams a day and skipping the loading phase entirely
Both approaches showed strength benefits in studies, and neither showed problems with kidney or liver function. The main downside reported was some stomach upset, especially during the loading phase — which is one reason a lot of people just skip loading and start with the lower daily dose.
How long before you’d notice anything
Be patient. The benefits on top of your training tend to show up after 12 or more weeks of consistent use, not after a week or two.
Bottom line
If you’re already doing structured strength or rehab work, creatine is a reasonable, well-studied thing to add. It’s not going to replace good programming, and it’s not going to do anything for you sitting on a shelf. But paired with training, it’s one of the more solid options out there — for your muscles and possibly your brain.
This content is for educational purposes and isn’t a substitute for individualized medical advice. Talk to your VA provider or care team before starting any new supplement, especially if you take medications or manage a chronic health condition.
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