Adding Nuts to Your Diet Lowers Lipids Cholesterol levels declined with mean daily consumption of 2.4 ounces. 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 consumption resulted in estimated mean reductions from baseline in total cholesterol (TC) level (–10.9 mg/dL), L
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