(AP) — The Atkins diet may have proved itself after all: A low-carb diet and a Mediterranean-style regimen helped people lose more weight than a traditional low-fat diet in one of the longest and largest studies to compare the dueling weight-loss techniques.

A bigger surprise: The low-carb diet improved cholesterol more than the other two. Some critics had predicted the opposite.

“It is a vindication,” said Abby Bloch of the Dr. Robert C. and Veronica Atkins Foundation, a philanthropy group that honors the Atkins’ diet’s creator and was the study’s main founder.

However, all three approaches - the low-carb diet, a low-fat diet and a so-called Mediterranean diet - achieved weight loss and improved cholesterol.

The study is remarkable not only because it lasted two years, much longer than most, but also because of the huge proportion of people who stuck with the diets - 85 percent.

Researchers approached the Atkins Foundation with the idea for the study. But the foundation played no role in the study’s design or reporting of the results, said the lead author, Iris Shai of Ben-Gurion University of the Negev.

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