[A] controversial [B] convicted [C] cover [D] distinguished [E] intend

[F] notorious [G] particles [H] previously [I] raw [J] sign

[K] symbol [L] tempted [M] tend [N] universally [O] urged

Saturated fat adds creaminess to cheese and greasiness to bacon. Lately it’s also been the key ingredient in a【C1】_____debate. For decades, doctors and medical organizations have viewed saturated fat as the【C2】__material for a heart attack and advised strictly limiting it. But newer research has some experts questioning whether we’ve【C3】__the wrong criminal. As some books and headlines embrace red meat and dairy products—a magazine【C4】_____even implored us to eat butter, Americans are left to wonder whether everything they thought they knew about nutrition was wrong.

By 1980, the first government dietary guidelines【C5】_____Americans to cut back on saturated fat and cholesterol (胆固醇) by limiting cream, butter, eggs, deep-fried food, and fatty cuts of red meat. “Saturated fat is definitely bad for you,” says Penny Kris-Etherton,【C6】__professor of nutrition sciences at Pennsylvania State University. “It raises LDL cholesterol, and cholesterol raises the risk of heart disease.” However, in the mid-1990s, a much-publicized paper in Annals of Internal Medicine, found no【C7】__that people who reported eating a lot of saturated fat were more likely than anyone else to suffer from heart disease. The latest American Heart Association guidelines recommend that people consume 5 to 6 percent of calories from saturated fat. More recent evidence suggests that saturated fat may not be as bad as【C8】_____thought.

Saturated fat can boost levels of LDL cholesterol, but those bits of cholesterol【C9】________to be big and floppy.

This is important because it appears that small, hard cholesterol【C10】________—the kind not associated with saturated fat—are more likely to clog arteries (动脉).

【C6】