76% of persons in the low-carbohydrate diet group and 57% of persons in the low-fat diet group completed the study. During the 24 weeks of the study, average body weight dropped by 12 kilograms in the low-carbohydrate diet group compared with 6.5 kilograms in the low-fat diet group. The low-carbohydrate diet group had more beneficial changes in blood triglyceride levels and high-density lipoprotein cholesterol (good cholesterol) levels than did the low-fat diet group. However, 2 persons in the low-carbohydrate group dropped out of the study because of a rise in the low-density lipoprotein cholesterol (bad cholesterol) level. Also, the low-carbohydrate group reported more adverse effects (such as constipation, headache, bad breath, muscle cramps, diarrhea, general weakness and rash) than the low-fat group.