Red Meat Consumption and Metabolic Diseases in LMICs: Risks, Mechanisms and the Mediterranean Diet as a Solution

Background: Metabolic diseases, including obesity, type 2 diabetes (T2D), and cardiovascular diseases (CVDs), are rising globally, with low- and middle-income countries (LMICs) experiencing a disproportionate increase. This increase is partially due to dietary shifts, particularly increased red meat consumption, contributing to these trends through processes such as gut microbiome dysbiosis, carcinogenesis, metabolic chronic inflammation and insulin resistance. While high-income countries (HICs) have implemented dietary guidelines to mitigate risks, LMICs often lack such policies and public awareness. Objective: This review examines the metabolic health impacts of red meat consumption, contrasts them with the Mediterranean diet, and explores the implications of dietary and fiscal policy guidelines promoting healthy and sustainable diets for LMICs. Main Findings: Excessive red meat consumption, particularly processed varieties, is associated with obesity, insulin resistance, and increased cardiovascular risk through mechanisms such as gut microbiota alterations, trimethylamine-N-oxide (TMAO) production, and epigenetic modifications. In contrast, the Mediterranean diet-rich in plant-based foods, healthy fats, and lean proteins offers protective benefits against metabolic diseases. Implementing this dietary approach in LMICs is crucial to curb the rising burden of metabolic diseases. However, economic constraints, cultural dietary habits, and food accessibility challenges hinder its widespread adoption. Policy interventions, including public education, dietary guidelines, and subsidies for healthier food options, are essential for promoting sustainable dietary shifts despite these barriers. Conclusion: Addressing the rising burden of metabolic diseases in LMICs requires a multi-faceted approach: reducing red meat intake, promoting the Mediterranean diet, and implementing evidence-based policies. Future research should focus on culturally tailored dietary interventions and the role of precision nutrition in mitigating metabolic health disparities in LMICs.