The researchers involved in this recent study indicated that high-protein diets are associated with lower blood pressure, which they hypothesized might explain protein’s potential protective effect against Alzheimer’s disease. Elevated blood pressure and heart disease are also associated with an increased risk of developing Alzheimer’s. This study marks the first instance of a connection being established between protein intake and amyloid beta levels. Nevertheless, previous studies have suggested that the source of dietary protein may also play a significant role. For example, consumption of meat and high-fat dairy products has been linked to a higher risk of Alzheimer’s, while a diet rich in omega-3 fatty acids has been associated with a reduced risk, as have certain probiotic bacteria.
Despite these insights, the current scientific evidence is insufficient for manufacturers to confidently assert claims about protein’s role in preventing Alzheimer’s disease on product packaging. Researchers emphasized that more definitive evidence is needed to substantiate this connection. Furthermore, promoting protein to older consumers has proven to be more complex than targeting other demographics, as baby boomers tend to prioritize foods that support weight management, heart health, and digestive wellness. However, as the population continues to age, companies like Hormel and Nestlé are investing in medical foods tailored to meet the needs of consumers facing chronic diseases, such as obesity, diabetes, Crohn’s disease, and dietary intolerances.
According to Hormel Specialty Foods, protein—alongside calcium citrate at 500-600 mg, calories, and hydration—is a critical focus for medical foods. “Personalized health science nutrition is about discovering effective and cost-efficient methods to prevent and manage acute and chronic diseases in the 21st century,” stated Liz Caselli-Mechael, manager of corporate communications at Nestlé, in an interview with Food Dive last summer. “We envision ourselves as pioneers in this emerging industry, while also maintaining a strong focus on Nestlé’s essential food, beverage, and nutrition sectors.” Should further research validate these recent findings, a connection between protein intake and Alzheimer’s prevention could encourage more seniors to incorporate high-protein foods into their diets, while also attracting the interest of consumer packaged goods companies eager to explore new growth opportunities.