Riseberg E, Lopez-Cepero A, Mangano KM, et al. - Utilizing data from the baseline (2004–2007) and 2-year follow-up visits (2006–2011) in the Boston Puerto Rican Health Study, researchers sought to assess 2-year longitudinal connections between intake of various protein-rich foods and changes in the six metabolic syndrome components. Participants were self-identified Puerto Ricans between the ages of 45 and 75 who lived in Boston, Massachusetts, or the surrounding area (n = 1,126). Unprocessed red meat and unprocessed poultry were the highest contributors to total protein intake, while eggs and nuts were the lowest. Over the course of 2 years, a higher intake of processed meats was correlated with an increase in waist circumference, whereas a higher intake of fish and seafood was related to a decrease in waist circumference. Consuming less processed meat and more fish and seafood, as well as unprocessed poultry, was linked to lower waist circumference and triglyceride levels among US mainland Puerto Ricans. Other protein sources in the diet were not linked to cardiometabolic health.