Characteristic	Intervention(s) and comparator(s)	Duration of intervention	Participating population	Study period [year(s)]	Country	Setting	Duration of disease [mean/range years (SD), or as reported]
Kaats 1996	I1: CrP 200 μg/day	72 days	Participants were recruited from the first 233 volunteers who responded to a news story about the study run on the local central broad‐casting system	1996	USA	Community volunteer	‐
	I2: CrP 400 μg/day
	C: placebo
Kaats 1998	I: CrP 400 μg/day	90 days	Participants were recruited from a variety of fitness and athletic clubs in San Antonio and Houston, Texas	1998	USA	Community volunteer	‐
	C: placebo
Joseph 1999	I: CrP 1000 μg/day + resistance training	12 weeks	Moderately overweight older men and women	1999	USA	Community volunteer	‐
	C: placebo + resistance training
Kleefstra 2006	I1: CrP 500 μg/day	6 months	Participants with type 2 diabetes mellitus	2006	USA	Outpatients	‐
	I2: CrP 1000 μg/day
	C: placebo
Iqbal 2009	I: CrP 500 μg/day	16 weeks	Nondiabetic participants aged 18 to 75 years with metabolic syndrome and abdominal adiposity	2009	USA	Outpatients	‐
	C: placebo
Volpe 2001	I: CrP 400 μg/day + weight training	12 weeks	Pre‐menopausal women with a BMI between 27 and 41 kg/m2	2001	USA	Community volunteer	‐
	C: placebo + weight training
Anton 2008	I: CrP 400 μg/day	8 weeks	Healthy, overweight adult women who reported craving for carbohydrates	2008	USA	Community volunteer	‐
	C: placebo
Campbell 1999	I: CrP 1000 μg/day + resistance training	13 weeks	Older men	1999	USA	Community volunteer	‐
	C: placebo + resistance training
Yazaki 2010	I: CrP 400 μg/day	24 weeks	Healthy overweight adults	2010	USA	Community volunteer	‐
	C: placebo
Footnotes "‐" denotes not reported BMI: body mass index; C: comparator: CrP: chromium picolinate; I: intervention; SD: standard deviation