Does creatine also help with memory and concentration?
Creatine can improve your memory, but mainly if you are older, vegetarian, or your brain is under pressure. If you are a young, healthy meat eater who sleeps well, the effect is small to negligible.
Yes, creatine can improve your memory and thinking ability, but it depends strongly on who you are and what situation you are in. The evidence is reasonably strong for specific groups, but virtually absent for young, healthy people who are sleeping well.
If you are 66 or older, the effect is clearest. An analysis of 8 studies showed that creatine improved memory compared with a placebo (SMD 0.29 overall; SMD 0.88 in older adults aged 66 to 76). If you want to try it as an older adult: choose creatine monohydrate, powder or capsules, labelled 'creatine monohydrate'. Take 5 grams per day for at least 4 to 8 weeks. More expensive forms such as HCl or citrate offer no proven advantage; creatine ethyl ester is best avoided, because it can distort blood values in ways that resemble kidney problems.
If you are vegetarian or vegan, you get no creatine from food and your levels are naturally lower. A study with vegetarian women (20 grams per day for 5 days, compared with a placebo) showed memory improvement in vegetarians but not in meat eaters. If you want to try it as a vegetarian: take 5 grams per day for at least 4 to 8 weeks, or 20 grams per day for 5 days as a short-term approach. Dose and duration (from 5 days to 24 weeks) did not, incidentally, appear to influence the effect in older adults.
If you are facing a period of sleep deprivation or intense mental effort, creatine seems to help maintain thinking ability more effectively. If you want to try it in that situation: 20 grams per day for 5 to 7 days before that stressful period. If you are a young, well-rested meat eater with no particular stress, the effect is small to negligible and creatine is probably not worth the money for this purpose.
Creatine monohydrate has been found safe at up to 20 grams per day in people with healthy kidneys. If you have a kidney condition, consult your doctor before using it.
This answer is based on multiple randomised studies and two systematic reviews of those studies, including one that pooled eight such studies. The findings on older adults and vegetarians come from small but randomised trials. The evidence on stress situations (sleep deprivation, altitude) and brain creatine levels comes from review articles without pooling of raw data. The safety statements are well supported by multiple sources. The researchers emphasise that the optimal dosage for a cognitive effect has not yet been established, and that effects in young healthy people at rest are small or absent.
Is creatine good for your brain?
Creatine shows a slight improvement in memory in healthy adults, and that effect is clearly greater in older adults than in younger ones. The best-supported starting point is 5 grams of creatine monohydrate per day for at least 4 to 8 weeks.
What does caffeine do to your memory and concentration in the long run?
Caffeine helps you stay more alert and focused when you are tired, but it does not make a well-rested brain smarter. If you want to get something out of it, use it when you are genuinely fatigued and keep the amount limited, especially as you get older.
How does creatine improve mood and wellbeing?
Small studies occasionally show positive signals in depression, but an international guideline based on many studies concludes that the evidence for creatine in mood and wellbeing is currently insufficient.
Does creatine affect dopamine levels?
In healthy people, creatine has no demonstrable effect on dopamine in the blood. Positive signals so far come exclusively from animal studies.
Does creatine affect your sleep?
Creatine may improve how you experience your sleep, but objective measurements show no effect. The research is based on dozens of participants and the results are contradictory; do not use it as a sleep aid.
Does creatine help with weight loss?
Creatine is not a slimming aid and is not recommended for fat loss as a primary goal. If you combine it with strength training, your body composition improves modestly: slightly less fat, more muscle mass.