Most of the confusion is due to decades of marketing, like the slogan "Pork. The Other White Meat." which famously made its rounds across the nation in the '90s.

Poultry is the second most widely eaten meat in the world, according to the U.S. Department of Agriculture. Just ahead of poultry (33%) is pork at 36%. Americans are also eating twice as much ...

Some pork can be safely consumed by people with red meat allergy 01:02. BOSTON - Some people with a red meat allergy may be able to eat bacon after all - if it's been genetically altered.

The bottom line is that red meat can still be enjoyed as part of a healthy diet, if not eaten in excess. Where possible, opt for unprocessed or lean cuts and try to grill less and roast more.

They defined unprocessed red meat as beef, pork, lamb and hamburger. A serving of red meat is three ounces, about the size of a deck of cards.

Of the 44 studies the scientists analyzed, 29 received funding from red-meat-related industry groups like the National Cattlemen’s Beef Association and the National Pork Board.