As Howard had in London, Young reviewed the hundred-year history of carbohydrate-restricted diets, including the research of Pennington and that of Margaret Ohlson and her own trials in the 1950s. Young then discussed her recent studies, in which she had put obese young men on eighteen-hundred-calorie diets with the protein content fixed at 460 calories (26 percent), but with varying proportions of fat and carbohydrates. Over the course of nine weeks, she reported, “weight loss, fat loss, and percent weight loss as fat appeared to be inversely related to the level of carbohydrate in the diets”—in other words, the fewer carbohydrates and the more fat in the diet, the greater the weight loss and the greater the fat loss. “No adequate explanation could be given for the differences in weight losses,” she said. All of the carbohydrate-restricted diets, she said, “gave excellent clinical results as measured by freedom from hunger, allaying of excessive fatigue, satisfactory weight loss, suitability for long term weight reduction and subsequent weight control.”