Boston, MA (AP) – The latest medical study led by researchers at Tufts University suggests that incorporating foods such as bread, pasta, and mashed potatoes into a plant-based diet could lead to better health outcomes in later years. The study, which analyzed the diets of 48,000 women over a span of 32 years, is due to be published in the American Journal of Clinical Nutrition.
According to the research, individuals who consumed ample amounts of plant-based proteins were found to have a 46% higher likelihood of maintaining good health as they aged, compared to those who did not. This correlation translated into a reduced risk of conditions like heart disease, cancer, diabetes, and cognitive decline.
In contrast, the study found no significant benefits for those participants who consumed high levels of animal-based proteins, including meat, fish, and cheese.
The primary sources of plant-based protein identified in the study included bread, vegetables, fruits, mashed potatoes, nuts, beans, peanut butter, pasta, and even pizza, as well as cereal and various baked goods.
Lead author Andres Ardisson Korat, a researcher at the Jean Mayer USDA Human Nutrition Research Center on Aging, emphasized the importance of protein consumption during midlife for promoting long-term health. He also highlighted the significance of the protein source, suggesting that deriving the majority of protein from plant sources in midlife, along with a small amount of animal protein, seemed to be conducive to good health and longevity.
However, when asked about the inclusion of pizza, bread, and baked goods on the list, Ardisson Korat cautioned against misinterpretation. He explained that these items were included because they are commonly consumed in the United States and contain gluten, which is classified as a plant-based protein. Ardisson Korat emphasized that the study does not imply that all items on the list are healthy, but rather that the plant-based proteins found in these foods can have positive effects on health when consumed.
The research drew its data from the Nurses’ Health Study, an extensive observational study of female healthcare professionals conducted from 1984 to 2016. By comparing the diets of healthy individuals with those who experienced health declines, researchers were able to assess the impact of diet on long-term health outcomes. Notably, the study’s subjects were predominantly white women, raising questions about the applicability of the findings to other ethnic backgrounds and to men.
While the study presents valuable insights, it is important to note its limitations. The research is observational and relies on self-reported nutrition data. Moreover, it does not suggest that consuming more bread or pizza is necessarily better than opting for healthier alternatives like beans, salads, and fruit. Other studies have indicated that calorie restriction, rather than specific food choices, may be key to maintaining good health and promoting healthy aging.
In the complex realm of nutrition research, the study’s findings offer some positive news for individuals who enjoy certain types of pizza, emphasizing the advantages of choosing thin-crust pizzas with whole-grain bases, small amounts of cheese, and fresh ingredients. However, it still stands that a healthy salad likely remains a superior option. As science continues to evolve, it is vital to approach dietary recommendations with a blend of common sense and evidence-based understanding.