Is Peanuts good for creatinine levels when eaten in limited amounts. They provide plant protein, healthy fats, and antioxidants that support overall kidney health. However, peanuts also contain phosphorus and potassium, which may raise creatinine if consumed excessively, especially in people with kidney disease. For individuals with high creatinine or CKD, peanuts should be taken only after medical or dietitian advice. Proper portion control is essential to avoid kidney overload.