I have taken creatine monohydrate powder in my morning coffee for quite some time because it was easily dissolvable and added no taste I could detect. This was probably a waste of money.
It turns out that it is not easily absorbed by the body when taken with coffee.
I will be switching to creatine nitrate because it is more absorbable by the body when taken with coffee than the monohydrate form. I am satisfied with my muscle mass and no noticeable sarcopenia. At this stage, I am more concerned about brain functioning.
It may also be better for cognitive functions.
“Creatine nitrate and caffeine that were co-ingested significantly enhanced cognitive function, as indicated by improved scores in the Stroop Word–Color Interference test (p = 0.04; effect size = 0.163). Co-ingestion was more effective than caffeine alone in enhancing cognitive performance.”
“The co-ingestion of creatine nitrate and caffeine improved cognitive function, particularly in cognitive interference tasks, without altering short-term exercise performance.”
The study gives a mixed report on the effect of creatine nitrate on exercise and muscle.
“Earlier studies reported that creatine nitrate supplementation increased circulation and muscle creatine levels from 5 to 28 days [20,21] and improved body composition and strength performance as much as creatine monohydrate during 28 days [21]. Moreover, Dalton et al. 2017 reported that 3 and 6 g creatine nitrate over five days improved one-repetition maximum (1RM) and muscular endurance bench press performance at 70% of 1RM without an ergogenic effect during a 4 km time trial performance [22]. Creatine nitrate also seems safe when ingested at 1 to 6 g/day doses for up to 28 days [20,21,22].”
As far as I can find there is little difference in muscle performance at least in the way I was taking creatine monohydrate.
I can’t find any definitive studies that prove creatine monohydrate is not sufficiently absorbed when taken with coffee.
Creatine nitrate is a newer form with higher water solubility, which may lead to better absorption and utilization by the body.
Some research suggests that the nitrate group in creatine nitrate may enhance its solubility and absorption compared to creatine monohydrate.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10974193/