Yes, in certain populations. Creatine has been demonstrated to improve cognitive ability in vegetarians and the elderly.
Vegetarians generally have low creatine levels because their diet provides almost none. It’s unclear why the elderly would respond positively to creatine. My guess is that our bodies produce less creatine as we age.
Young meat eaters have not demonstrated improvement after supplementation, probably because they have enough creatine in their bodies already.
In any case, it’s interesting that there seems to be a connection between brain health and creatine. I’m betting that there will be more research in this area in the future.
Is Creatine Good For Arthritis?
Is Creatine Good For Respiratory Infections?
Is Creatine Good For The Immune System?
Does Creatine Help With Inflammation?
Does Creatine Help With Muscle Or Tendon Damage?
Top 3 Creatine Supplements
Optimum Nutrition Creatine Powder
ISS Complete Creatine Power