23 men and 36 Foundation for Zock et al., 1994 Randomized 1. 21.0 11.9 4.7 0.2 Initial: 59, final: 59 women Nutrition and crossover design No dropouts Health Sciences Mean age: 29 The Netherlands 2. 10.8 21.3 4.4 0.3 reported years with two interventions Experimental period: 21 days Diet 1: 15 men National Institutes Barr et al., 1992 Randomized 1. 9.0 13.2 7.8 Initial: 51, final: 48 of Health Diet 2: 16 men Reason for loss: parallel design Best Foods, Kraft Mean age: 25 USA 2. 12.2 10.8 6.5 illness (n=1), poor Inc. years with two compliance (n=2) Bertolli interventions 17 men received a diet that was not Experimental included in the period: meta-analysis 49 days Diet 1: 9 men National Institutes Ginsberg et al., Randomized 1. 8.9 8.4 11.4 Initial: 30, final: 30 of Health Diet 2: 9 men No dropouts 1994 parallel design Best Foods, Kraft Mean age: 25 2. 9.1 13.2 6.4 reported Inc. years with two 12 men received a USA Bertolli interventions diet that was not included in the
Zock et al., 1994 The Netherlands Randomized crossover design with two interventions Experimental period: 21 days 1. 2. 21.0 10.8 11.9 21.3 4.7 4.4 0.2 0.3 Initial: 59, final: 59 No dropouts reported 23 men and 36 women Mean age: 29 years Foundation for Nutrition and Health Sciences Barr et al., 1992 USA Randomized parallel design with two interventions Experimental period: 49 days 1. 2. 9.0 12.2 13.2 10.8 7.8 6.5 Initial: 51, final: 48 Reason for loss: illness (n=1), poor compliance (n=2) 17 men received a diet that was not included in the meta-analysis Diet 1: 15 men Diet 2: 16 men Mean age: 25 years National Institutes of Health Best Foods, Kraft Inc. Bertolli Ginsberg et al., 1994 USA Randomized parallel design with two interventions 1. 2. 8.9 9.1 8.4 13.2 11.4 6.4 Initial: 30, final: 30 No dropouts reported 12 men received a diet that was not included in the Diet 1: 9 men Diet 2: 9 men Mean age: 25 years National Institutes of Health Best Foods, Kraft Inc. Bertolli