Diet	Weight loss	95% confidence interval
Atkins	10 lb, 6oz (4.7 kg)	13 lb, 14 oz to 6 lb, 13 oz(6.3 to 3.1 kg)
LEARN	4 lb, 14 oz (2.2 kg)	7 lb, 15 oz to 1 lb, 12 oz(3.6 to 0.8 kg)
Ornish	5 lb, 12 oz (2.6 kg)	8 lb, 6 oz to 2 lb, 14 oz(3.8 to 1.3 kg)
Zone	3 lb, 8 oz (1.6 kg)	6 lb, 3 oz to 14 oz (2.8 to 0.4 kg)