Foods To Avoid For Optimal Kidney Health

55. Frozen Dinners and Meal Kits

Pre-packaged frozen dinners and even “healthy” meal kits can be problematic for kidney patients. They often contain sky-high sodium, phosphorus-based preservatives, and sauces rich in potassium or protein. The convenience comes at the cost of inflammation, blood pressure spikes, and harder-to-manage labs. Instead, consider batch-cooking kidney-friendly meals at home and freezing individual portions. This way, you still get convenience—without compromising kidney health. When in doubt, homemade trumps microwaveable every time.

56. Bouillon Cubes and Broth Concentrates – Small Cube, Big Risk

Bouillon cubes and concentrated broths might seem harmless, but they’re sodium bombs in disguise. A single cube can contain over 1,000 mg of sodium—half your daily recommended limit in just one stir. Many also sneak in potassium chloride and phosphate-based additives to boost flavor and shelf life. For individuals with compromised kidney function, that’s a dangerous trifecta. Instead, opt for homemade stocks using fresh vegetables and herbs, or low-sodium store-bought options labeled "no added phosphate."