These recipes are from a moderate cholesterol-lowering diet used by 3,806 middle-age men with high cholesterol levels participating in a 10-year clinical study of heart disease. The research was conducted in 12 Lipid Research Clinics located mainly in university medical centers. One finding: For each 1-percent fall in cholesterol, a 2-percent reduction in heart attack risk can be expected. Delicious recipes include meats, poultry, fish, pasta, grains, vegetables, breads, and desserts.