Diet programs work regardless of the specific brand, as all programs resulted in weight loss when compared to no diet at all. Low-carb and low-fat diets produced the most weight loss initially, with an average of 19 pounds lost for low-carb and over 17 pounds for low-fat by 6 months, dropping slightly to 16 pounds lost by 1 year for both. Moderate macronutrient diets produced an average weight loss of 12.5 pounds after 1 year. While specific brands differed slightly in results, with low-carb diets producing up to 4 more pounds lost than others, on the whole the differences between branded diet programs were small and not very meaningful to people trying to lose weight.