Table 7.

Mean changes from baseline in body fat percentage

Study	Intervention	Mean change $\pm$ STD treatment group	Mean change $\pm$ STD control group	p value
Kalman et al. 2000 [21]	7-Keto-DHEA	− 1.80%	− 0.57%	0.02
Zenk et al. 2002 [20]	7-Keto Naturalean	− 0.58 $\pm$ 1.49%	− 0.01 $\pm$ 1.54%	0.41
Zenk et al. 2005 [3]	Lean System 7	− 0.72 $\pm$ 1.40 kg	− 0.38 $\pm$ 1.82 kg	0.47
Zenk et al. 2007 [5]	7-Keto-DHEA	− 0.50%	0.04%	≥ 0.05
	HUM5007	+ 0.15%	0.04%	≥ 0.05