The findings may be oversimplified, Noel Mueller and Dr. Lawrence Appel of the Johns Hopkins Bloomberg School of Public Health, who were not part of the study, wrote in a commentary.
“For example, should saturated fat have been included among the dietary factors? Randomized trials conducted decades ago demonstrated that replacement of saturated fat with polyunsaturated vegetable oil reduced cardiovascular disease events by 18 percent to 41 percent,” they wrote.
But the report is useful anyway, they concluded.
“Whether the authors overestimated or underestimated the potential effects of improved diet, the likely benefits are substantial and justify policies designed to improve diet quality.”
The American Heart Association has for decades stressed that food is a major factor in preventing America’s No. 1 cause of death. And many studies have shown that Americans eat far too much meat, cheese, processed grains, sugar and salt.
Studies also back the health effects of a daily handful of nuts, eating more vegetables, fruits and whole grains, as well as the omega-3 fatty acids found in some fish, walnuts, leafy greens and flaxseed.