Metabolomic patterns of dietary protein intake and their link to cardiometabolic risk: systematic review and meta-analysis.
Wong NMY, Ting M, Liu MH, Kim JE
Plant Based Diet
Swapping even some animal protein for plant-based foods like lentils, beans, or tofu shifts your body's chemistry in ways that lower heart disease risk—your grocery choices are a direct lever on your health.
Scientists looked at dozens of studies where people ate different amounts or types of protein and measured thousands of tiny molecules in their blood. They found that plant proteins and animal proteins leave very different chemical fingerprints in the body. These fingerprints help explain why plant-heavy diets tend to be better for heart health.
Key Findings
Plant protein consumption produced distinct metabolomic profiles compared to animal protein, with differences in branched-chain amino acids and lipid-related metabolites linked to cardiometabolic risk.
Higher protein intake overall altered circulating metabolites associated with insulin sensitivity and cholesterol metabolism, though effects varied by protein source.
The systematic review and meta-analysis used MetaboAnalyst 6.0 to synthesize metabolomic data across randomized controlled trials, providing a structured framework for comparing protein-type effects on heart health markers.
chevron_right Technical Summary
This study reviewed clinical trials to understand how eating more protein—or choosing animal versus plant protein—changes the body's chemical signals and heart disease risk. It found that protein source matters more than quantity for certain metabolic markers.
Abstract Preview
Dietary protein is a key macronutrient influencing cardiometabolic health, but metabolomic mechanisms linking protein quantity and source to cardiometabolic risk factors (CRFs) remain unclear. This...
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