How are Triglyceride and longevity related?

The relationship between triglycerides and longevity is indirect, primarily mediated through cardiovascular risk. Elevated fasting triglyceride levels (≥150 mg/dL) are a marker for atherosclerosis, increasing the risk of heart attack and stroke—both life-shortening events. However, the evidence for an independent causal role of triglycerides on all-cause mortality is weaker than for LDL cholesterol. Many studies link high triglycerides to metabolic syndrome, insulin resistance, and fatty liver disease, which can reduce life expectancy. Conversely, population data suggest that very low triglycerides (<50 mg/dL) may also be associated with increased mortality (U-shaped relationship). Lifestyle factors—diet, exercise, alcohol intake—strongly influence triglycerides, so triglyceride-lowering habits (e.g., Mediterranean diet, omega-3 fatty acids, reduced sugar) may promote longevity. Importantly, single biomarker values from consumer tests should never be interpreted in isolation; they must be considered within the full cardiovascular risk profile. The provided context sources contain no specific studies on triglycerides and longevity, so this answer is based on general medical knowledge. Evidence grade: human-moderate (epidemiological data, but no randomized trials with longevity endpoint).