Four years later, when Keys and his wife, Margaret, co-authored a diet book based on their belief in the healing powers of Mediterranean eating patterns, they insisted that Yudkin was “alone in his contentions,” at least among academic researchers, and added, “Yudkin and his commercial backers are not deterred by the facts; they continue to sing the same discredited tune.”
And there is limited evidence that the Mediterranean diet has any positive effect on heart health. One thing the Mediterranean diet has in common with basically every other diet that has been shown to help people in weight loss is that it also promotes people eating less sugar even if it doesn't place an emphasis on it.
