Which lifestyle factors change hsCRP?

HsCRP (high-sensitivity C-reactive protein) is a non-specific marker of systemic inflammation that responds to multiple lifestyle factors. The strongest evidence supports diet: a Mediterranean pattern rich in fruits, vegetables, whole grains, nuts, and omega-3s consistently lowers hsCRP, while ultra-processed foods, trans fats, and added sugars raise it. Regular moderate physical activity (e.g., 30 min brisk walking daily) reduces hsCRP, but excessive endurance exercise without recovery can transiently increase it. Smoking is a potent driver – cessation leads to significant decreases. Adiposity, especially visceral fat, is strongly linked to elevated hsCRP; losing 5–10 % of body weight produces measurable reductions. Chronic stress and insufficient sleep activate inflammatory pathways and raise hsCRP. Moderate alcohol intake (e.g., one glass of red wine/day) may have a mild lowering effect, whereas heavy drinking increases it. Gut health (fiber, probiotics) also appears relevant. Caveats: hsCRP is a risk marker, not a diagnostic test. Genetic variants (e.g., in the CRP gene) set individual baseline levels. Persistently high hsCRP (>2 mg/L) warrants medical evaluation to rule out underlying inflammatory conditions. Evidence: human-strong for diet, exercise, smoking, weight; human-moderate for sleep, stress; mechanistic for gut health.