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Originally Posted by frayedends
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IT WAS A SURVEY! And then they made the disclaimer
"The generalizability of these findings and the long-term effects of this dietary pattern require further study."
Of course they are going to get positive feedback because in the short term there are benefits.
Study limitations
This study was based on self-reported responses to an online survey.
Recalling what exactly one eats in a week, month or year is notoriously difficult.
And there is no way to objectively verify the accuracy of self-reported eating habits and health outcomes.
As far as what Harvard officially recommends, it is more of a Mediterranean diet.
Protein power – ¼ of your plate.
Fish, poultry, beans, and nuts are all healthy, versatile protein sources—they can be mixed into salads, and pair well with vegetables on a plate. Limit red meat, and avoid processed meats such as bacon and sausage.
Healthy Eating Plate | The Nutrition Source | Harvard T.H. Chan School of Public Health
And they are also a key participants of long term study of nurses started in 1976
Nurses' Health Study |
CNN
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A large new study by Harvard researchers suggests having just two servings of red meat per week increases risk for developing type 2 diabetes later in life, and the risk further increases with greater consumption, according to the study published Thursday in the American Journal of Clinical Nutrition.
“The association between red meat and type 2 diabetes has been observed in different populations worldwide,” said the study’s first author Xiao Gu, a postdoctoral research fellow of nutrition at the Harvard T.H. Chan School of Public Health, via email. “We keep strengthening existing evidence with improved data and techniques. I hope our study could settle the debate regarding whether we should limit red meat intake for health concerns or not.”
It is a great body of research because of longevity and the number of people surveyed. And they cover much more than diet.