Corrections

Sept. 9, 2009: The article How to Tell If Your Dinner Could Kill You originally contained typographical errors regarding the digestive enzyme lactase. This issue has been corrected.

March 20, 2009: The slide show "Portion Distortion" originally contained erroneous information about the percent of sodium contained in a 1-ounce package of potato chips as it relates to the recommended intake for adults. The text also misstated the amount of sodium in a 6-ounce bag of potato chips. Both issues have been corrected.

Jan. 29, 2009: The article "Lose Weight for Good" originally stated that Gary Foster, Ph.D., is affiliated with the University of Pennsylvania. This error has been corrected. He is the director of the Center for Obesity Research and Education at Temple University in Philadelphia.

Nov. 17, 2008: After conducting further research, Martica Heaner clarified information about bicycle seat heights and leg angles in her fitness column "Cycling and Knee Pain."

Sept. 5, 2008: In the article "Vitamins, Family Style," an incorrect dose recommendation for vitamin D was given. The dose recommendation should have read: "Your parents should aim for 1,200 mg of calcium daily, coupled with up to 1,000 IU of vitamin D for absorption," not 1,000 mg of vitamin D. If you believe you have incorrectly ingested the wrong dosage, contact your doctor immediately. This has been corrected in the article.

June 12, 2008: In the slide show "12 Food Additives to Avoid," Jean Weiss originally placed a quote from ADA spokesperson Gerbstadt next to statements that may have misrepresented the position of the agency she represents. The ADA has found aspartame to be safe. This has been corrected. The slide show text now presents studies that indicate the safety of aspartame, along with those that question its safety.

April 17, 2008: In the slide show "Eat at Your Own Risk," an image of Fresh Express lettuce was featured in a slide about the risks of eating packaged greens. However, Fresh Express products have not been recalled and have not been involved in recent outbreaks foodborne illness. The image has been replaced. We apologize for this error.

April 17, 2008: In the slide show "Eat at Your Own Risk," Sally Wadyka originally wrote that the U.S. Food and Drug Administration recommends freezing fish to an internal temperate of -3 degrees for at least 15 hours in order to kill parasites. The temperature should have been listed as -31 degrees. This has been corrected.

Feb. 14, 2008: In the article "What Your Waistline Reveals," Prevention originally wrote that a woman with a 30-inch waist and 37-inch hips has a waist/hip ratio of 0.7. It should have been a ratio of .81. This has been corrected.