Traditional Low-Fat Diet Rated Healthy
Compared With Mediterranean Diet, Both Found Equally Good for Heart's Health
March 26, 2007 (New Orleans) -- Contrary to previous findings, the
traditional low-fat diet recommended by the American Heart Association is just
as heart healthy as a Mediterranean diet rich in olive oil and nuts.
That news comes from Katherine Tuttle, MD, of the Providence Medical
Research Center and Sacred Heart Medical Center in Spokane, Wash.
Tuttle’s team studied 202 people who had suffered heart attacks in the
previous six weeks and found that people on either diet were two-thirds less
likely to suffer another heart attack, stroke, or other heart problems or die
than people who continued to eat their usual diet.
What made a difference was regular, structured visits with a nutritionist,
Tuttle tells WebMD.
“Both diets are prudent, heart-healthy choices,” she says. “But it’s very
hard to maintain a lifestyle intervention without reinforcement, so making
regular, repeat visits with a dietitian is important to meeting your
The study was presented at the annual meeting of the American College of
Both Diets Low in Fat, Cholesterol
Both the American Heart Association (AHA) and the Mediterranean diets call
for consuming fewer than 200 milligrams of cholesterol a day, with less than 7%
of total calories coming from saturated fat. In contrast, the average American
consumes twice that much fat, Tuttle says.
In the study, people assigned to the AHA diet were advised to keep total fat
intake to less than 30% of calories. Those on the Mediterranean diet were
allowed to increase their fat intake to 40%, “the difference coming from
healthier monounsaturated fats, with a special emphasis on omega-3 fatty
acids,” Tuttle says.
In fact, the Mediterranean dieters ate omega-rich fish three to five times
per week; their diet was also high in olive oil, nuts, and avocados, she
The AHA low-fat diet put an emphasis on fresh fruit and vegetables, with
moderate intake of lean meats like chicken. People in this group were told to
stay away from saturated fats and cholesterol-rich foods like butter, cream,
and fatty red meats.
Dietary Counseling Key
Dieters in both groups had frequent one-on-one meetings with a dietitian --
two the first month and then every three to six months after that.
Additionally, they attended at least six group counseling sessions.
A total of 50 people were assigned to the low-fat diet and 51 to the
Mediterranean diet. “On average, most met their dietary goals,” Tuttle
Over the next four years, eight people in both groups suffered another heart
attack, had a stroke, or developed another heart problem. No one in either
People in both diet groups were then compared with a group of 101 heart
attack survivors who did not receive any intensive dietary intervention or
nutrition counseling. Among that group, 40 had a heart attack, stroke, other
heart problems, or died over the next four years. Additionally, cholesterol
levels improved in both diet groups but not in the usual care group.
Robert Eckel, MD, immediate past president of the American Heart Association
and a professor of endocrinology at the University of Colorado, says, “People
who have had a heart attack need to get dietary advice on an ongoing basis.
Active intervention by a dietitian is an important part of success.”
He notes that in the previous study that showed the Mediterranean diet was
better for heart health than the AHA diet, only people on the Mediterranean
diet got regular dietary advice.
“Without behavior modification, no diet is going to work,” Eckel tells