New Research Demonstrates Lean Beef is Good for Heart Health
CENTENNIAL, Colo., Dec. 15, 2011 --
As Part of a Heart-Healthy Diet, Eating Lean Beef Daily Can Help Lower Cholesterol
CENTENNIAL, Colo., Dec. 15, 2011 /PRNewswire-USNewswire/ -- A new study published in the January 2012 edition of American Journal of Clinical Nutrition shows that beef can play a role in a cholesterol-lowering diet, despite commonly held beliefs. The study found that diets including lean beef every day are as effective in lowering total and LDL "bad" cholesterol as the "gold standard" of heart-healthy diets (DASH, Dietary Approaches to Stop Hypertension).
The Beef in an Optimal Lean Diet (BOLD) clinical study (Effects on Lipids, Lipoproteins and Apolipoproteins),(1) conducted by The Pennsylvania State University (PSU) researchers, evaluated adults with moderately elevated cholesterol levels, measuring the impact of diets including varying amounts of lean beef on total and LDL cholesterol levels. Study participants experienced a 10 percent decrease in LDL cholesterol from the start of the study, while consuming diets containing 4.0 and 5.4 oz. of lean beef daily.
"This research sheds new light on evidence supporting lean beef's role in a heart-healthy diet. Study participants ate lean beef every day and still met targets for saturated fat intake," says Penny Kris-Etherton, PhD, RD, distinguished professor of nutrition at PSU and the study's principal investigator. "This study shows that nutrient-rich lean beef can be included as part of a heart-healthy diet that improves risk factors for cardiovascular disease."
The Research The study used a rigorously designed Randomized Controlled Clinical Intervention Study to investigate the effects of cholesterol-lowering diets with varying amounts of lean beef. Thirty-six participants (adults ages 30-65 with moderately elevated cholesterol) were randomly assigned to a treatment order and consumed a total of four diets for five weeks each. The cross-over design allowed each participant to serve as his or her own control, reducing any errors associated with biological variation.
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