Red meat consumption and metabolic syndrome in the Costa Rica Heart Study

Area of Science:

• Epidemiology
• Nutrition Science
• Public Health

Background:

• Epidemiologic studies indicate a link between red meat consumption and metabolic syndrome (MetS).
• Limited research exists on this association in populations with lower red meat intake, such as those in developing countries undergoing nutritional changes.
• The Costa Rican Heart Study provides a unique dataset to investigate this relationship.

Purpose of the Study:

• To examine the association between red meat consumption and the prevalence of metabolic syndrome (MetS) in Costa Rican adults.
• To explore differences in this association based on the type of red meat (unprocessed vs. processed).
• To investigate the relationship between red meat intake and individual components of MetS, including abdominal obesity.

Main Methods:

• A population-based cross-sectional study involving 2058 Costa Rican adults.
• Log-binomial regression models were used to estimate prevalence ratios (PRs) of MetS across quintiles of red meat consumption.
• Linear regression models assessed least-squares mean values of individual MetS components.

Main Results:

• A significant positive association was found between total red meat consumption and MetS (PR for highest vs. lowest quintile: 1.21).
• No significant association was observed for unprocessed or processed red meat consumption when analyzed separately after adjustments.
• Significant positive associations were found between total, unprocessed, and processed red meat consumption and abdominal obesity.

Conclusions:

• Total red meat intake may influence the risk of metabolic syndrome (MetS) in Hispanic populations experiencing nutritional transition.
• The findings suggest a potential "threshold effect" for red meat consumption, where impact on MetS may only occur above certain intake levels.
• Further research is warranted to confirm these findings and elucidate the mechanisms behind the observed associations.