Adherence to the DASH diet , compared with the control diet , resulted in a significant decrease in weight ( -@ versus -@ kg ; P < @ ) and body mass index ( -@ versus -@ kg/m ( @ ) ; P < @ ) , decreased serum triglycerides ( -@ versus +@ mg/dL ; P interaction = @ ) and very-low-density lipoprotein cholesterol levels ( -@ versus +@ mg/dL ; P interaction = @ ) .