1 . Eggs make for a delicious meal, and for the past few years, we’ve been able to enjoy them guilt-free. Now, they are declared as “bad egg” again.
Researchers from Northwestern University collected data from six previous studies that tracked the health of 29, 615 adults for about 18 years on average. After gathering results from the various studies, they concluded that 300 milligrams of cholesterol (胆固醇) per day slightly raised a person’s risk of heart disease. One egg contains about 186 milligrams of cholesterol.
“These participants weren’t given periodic questionnaires, they were given one questionnaire,” says Lauren Slayton, a nutritionist. “That’s like drawing conclusions about someone’s fashion sense by what they wore 20 years ago.” No one followed up to see if the diet reports were accurate or to find out whether people changed their diet.
Frank Hu, a professor of nutrition at the Harvard T. H. Chan School of Public Health, told NPR: “So much data have already been published on this topic, which generally show that low-to-moderate egg consumption (no more than one egg per day) is not associated with increased risk of heart attack.” Plus, there are also many other risk factors that contribute to heart disease.
Before you quit your breakfast favorite, you should know that this research is far from the last word on eggs. In other words, don’t feel like you have to drop eggs from your diet based on one study. If you’re concerned about your cholesterol, discuss your diet with your doctor—and consider your exercise routine and other health factors, too. If your heart risk is rising, you may want to check out the best—and worst—diets for your heart.
1. What is the writing purpose of the text?| A．To test what previous studies found. |
| B．To discourage people from eating eggs every day. |
| C．To measure how much cholesterol an egg contains. |
| D．To show the link between egg-eating and health risk. |
| A．The findings are out of date. | B．This kind of research is limited. |
| C．No one cares about the research. | D．The results should be tested again. |
| A．Consult the doctor often. | B．Seek for professional aid. |
| C．Do exercise on a daily basis. | D．Have a sharp mind in your diet. |
| A．Cold. | B．Uncertain. | C．Doubtful. | D．Positive. |
