Healthy Eaters Live Longest
Overall, people in the healthy foods cluster had more years of healthy life and a lower death rate than all other groups. Moreover, their blood tests came back with significantly more indicators of health than the other groups.
But not all of the study findings were so predictable.
"Unexpectedly, in this and in several other studies, a [dietary] pattern higher in red meat was not significantly associated with increased risk of mortality," Anderson and colleagues note.
It's also not entirely clear why the Meat, Fried Food, and Alcohol cluster didn't have a significantly higher death risk, as most diets warn people to limit or avoid such foods.
"In our study, the Meat, Fried Food, and Alcohol cluster did have a slightly higher percentage of total energy from vegetables, fruit, and whole grains than both the High-Fat Dairy Products and Sweets and Desserts clusters, which showed higher risk of mortality," Anderson and colleagues suggest.
This was by far the most common eating pattern seen in the study: 27% of participants were in the meat, fried food, and alcohol cluster. But Anderson and colleagues do not recommend such a diet.
Instead, they point to the fact that 14.5% of study participants were in the healthy foods cluster.
"Adherence to such a diet appears a feasible and realistic recommendation for potentially improved survival and quality of life in the growing older adult population," Anderson and colleagues conclude.
The study appears in the January 2011 issue of the Journal of the American Dietetic Association.