Yes, salmon can be part of a kidney-friendly diet for people with IgA Nephropathy, but portion size and preparation method matter. Salmon provides high-quality protein and healthy omega-3 fatty acids. Stick to fresh or unseasoned frozen salmon rather than canned or smoked versions which are high in sodium. Cook it by grilling, baking, or poaching without added salt. A typical serving is 3-4 ounces.