What to watch with CRP Entzündung and Müdigkeit?

CRP (C-reactive protein) is a non-specific marker of inflammation. Elevated levels can indicate infection, chronic inflammation, or tissue damage. Fatigue is a common accompanying symptom, but causes are diverse – from sleep deprivation and stress to nutrient deficiencies. A vitamin D level below 30 ng/mL (like your 28 ng/mL) is considered suboptimal and may contribute to fatigue. Supplementing with 1000–2000 IU vitamin D3 can help reach the optimal range (30–60 ng/mL). However, CRP alone is insufficient for a specific diagnosis. Further workup (e.g., complete blood count, thyroid, iron status) is advisable. Genetic tests for inflammatory predisposition currently have limited clinical utility. Focus on adequate sleep, physical activity, and an anti-inflammatory diet (omega-3s, low sugar). If fatigue or high CRP persists, consult a physician.