—Gastrointestinal symptoms (GIS; number and severity) reported for 300 min (at specific times and as aggregate for the session) after 500 mg/kg body mass (BM) sodium citrate or 300 mg/kg BM sodium bicarbonate ingestion. The time-specific number (a), time-specific severity (b), total session number (c), and total session severity (d) of GIS reported over 5 hr following ingestion 500 mg/kg BM sodium citrate or 300 mg/kg BM sodium bicarbonate. Values in (a) and (b) are mean and range (due to nonnormal distribution). Zero (0) value on the x-axis corresponds to the completion of ingestion. Maximum possible number of GIS at each time (a) was 16; maximum possible severity of GIS at each time (b) was 160 (16 symptoms, each with a maximum possible rating of 10). Values in (c) and (d) are the sum of all GIS ratings reported by participants in the relevant treatment, irrespective of time. Group value in (c) and (d) (bolded square symbols) is the mean total session value of all participants; individual values (circular symbol) are those reported by each individual participant. Maximum possible number of GIS (c) was 192 (12 times, each with a maximum number of 16 symptoms); maximum possible severity of GIS (d) was 1,920 (16 symptoms, each with a maximum possible rating of 10, each recorded at 12 times). All n = 16 participants per treatment. N = 16 participants per treatment.

Citation: International Journal of Sport Nutrition and Exercise Metabolism 33, 1; 10.1123/ijsnem.2022-0083