Adding Nuts to Your Diet Lowers Lipids

Epidemiologic studies repeatedly have shown an association between consumption of nuts and lower risk for coronary heart disease. In a pooled analysis of 25 trials with 583 participants in seven countries, researchers evaluated the relation between consumption of nuts and lipid levels. The analysis included 16 randomized crossover trials, 2 parallel-group randomized trials, and 7 “before-and-after” studies.

In all studies, nuts were the only dietary intervention. No participants were receiving lipid-lowering therapy, and studies that involved substantial weight loss were excluded. Researchers received some funding from a nut growers' association.

Mean daily consumption of nuts (most commonly, walnuts and almonds) was 2.4 ounces. Nut consumpti…