Your body makes some creatine, and the only foods that carry the rest are meat and fish. That leaves vegans with lower stores, which may be exactly why they respond so well to the supplement.
Vegan Brief·Evidence last reviewed July 15, 2026
This is a summary of the cited evidence, not medical advice.
Made by the bodyAbout 1 g/day
Dietary sourceMeat and fish only
Vegan responseOften larger
01
Where creatine comes from
Creatine is not a vitamin. Your own body builds most of what you use, and food tops it up. The NIH fact sheet on supplements for athletes, a public-domain US government document, is clear that both routes matter.
Primary source 01 / 04
Creatine is produced endogenously and obtained from the diet in small amounts.
The body makes it in the liver and kidneys from ordinary amino acids you can get from plants. The food half of the equation is the part that splits vegans off from meat eaters.
Primary source 02 / 04
The liver and kidneys synthesize about 1 g/day creatine from the amino acids glycine, arginine, and methionine
Every dietary source the fact sheet names is an animal food. A vegan therefore lives close to the roughly 1 gram a day the body makes on its own, with almost nothing added from the plate. Lower intake shows up as lower muscle stores.
02
Why it may matter more for vegans
That lower baseline is not a deficiency in the medical sense, and it does not hold anyone back day to day. But it does change how much a supplement can do, and the fact sheet says so directly.
Primary source 04 / 04
Vegetarians, for example, with their lower muscle creatine content, might have greater responses to supplementation than meat eaters.
The read for a vegan who trains: you make your own creatine from plant-derived amino acids, you get little from food, and if you want the performance benefit the studies describe, creatine monohydrate is the form they tested. The powder is manufactured, not rendered from animals, so it fits a vegan diet; a gelatin capsule shell is the only thing worth checking on a bottle.
Protein on a vegan dietThe 'where do you get your protein' question has a boring, well-documented answer: from plants, across the day, and the complete-versus-incomplete framing was retired years ago.
Vitamin B12 on a vegan dietThis is the one nutrient the evidence is blunt about: plant foods are not a reliable source, so vegans need a supplement or fortified foods. Full stop.
Iron on a vegan dietPlants have iron, just the kind your body absorbs less easily. The government fact sheet quantifies exactly how much less, and what raises the odds in your favor.
Vegan diets and athletic performanceA growing list of pro athletes eat plant-based, and the science is not the obstacle it was once assumed to be. The position papers put vegan diets squarely inside the range that works for sport.
Frequently asked
Do vegans need creatine?
No one strictly needs a creatine supplement. But because the only dietary sources are meat and fish, vegans carry less creatine in their muscles, and the NIH notes that vegetarians, with their lower muscle creatine content, might respond to supplementation more than meat eaters do.
Is creatine powder vegan?
Creatine monohydrate, the form used in the research, is produced by chemical synthesis rather than extracted from animals, so the standard powder suits a vegan diet. If you prefer capsules, check that the shell is not gelatin.
The primary sources
The documents this page quotes. Read them yourself.
