There have been endless debates over whether low-fat or low-carbohydrate diets help people lose the most weight. Now, a new study has come out to favor the latter.
Harvard researchers reviewed 53 previous studies that included randomized, controlled trials of low-carb, low-fat and other diets, notes Mother Jones.
"In weight loss trials, low-carbohydrate interventions led to significantly greater weight loss than did low-fat interventions," the researchers wrote in The Lancet.
"When compared with dietary interventions of similar intensity, evidence from [randomized controlled trials] does not support low-fat diets over other dietary interventions for long-term weight loss," they concluded.
In another new study, this one by Robert Lustig, a pediatric endocrinologist at the University of California at San Francisco, 43 kids diagnosed with obesity and metabolic syndrome were fed processed meals for nine days with the same amount of calories as their previous diets.
However, Lustig and his team removed food that had added sugar and replaced those offerings with starches, which reduced the kids' consumption of sugar (in calories) from 28 percent to 10 percent.
Lutsig wrote in an op-ed for The Guardian on Oct. 27 that the kids' diastolic blood pressure went down by five points, fasting glucose dropped by five points, glucose tolerance had a strong improvement and insulin levels fell by 50 percent.
"In other words we reversed their metabolic disease in just 10 days, even while eating processed food, by just removing the added sugar and substituting starch, and without changing calories or weight," Lustig wrote. "Can you imagine how much healthier they would have been if we hadn’t given them the starch?"
"While this study does not prove that sugar is the sole cause of metabolic disease, it clearly demonstrates it is a modifiable one," he added.