sind zwei bananen am tag zu viel — which blood markers matter?

Whether two bananas a day are too much depends on your health status. For a healthy adult without kidney disease or medications affecting potassium (e.g., ACE inhibitors, potassium-sparing diuretics), two bananas (about 800 mg potassium) are generally safe. The key blood markers are potassium (risk of hyperkalemia), kidney function (creatinine, eGFR), and, for diabetics or those with insulin resistance, blood glucose (fasting glucose, HbA1c). Elevated CRP could indicate inflammation from an unbalanced diet. The provided context offers no direct evidence on banana intake; it only mentions CRP (practice) and fiber (marketing). Therefore, the evidence level is 'practice' (clinical experience). Conclusion: Two bananas are fine for most, but if you have kidney issues or diabetes, monitor potassium and blood sugar. A basic blood panel with electrolytes and kidney markers is advisable if you are concerned.