The Worst Breakfasts for Kidney Health

35. Commercial Granola: The Hidden Sugar and Sodium Trap

Many people think of granola as a wholesome, healthy breakfast, but most commercial versions are a silent trap for your kidneys. To make granola crunchy and delicious, manufacturers use large amounts of added sugar, syrups, and unhealthy oils that can lead to weight gain and diabetes—both of which are major risk factors for kidney disease. Additionally, many granolas contain nuts and seeds, which are high in both phosphorus and potassium. The combination of sugar, fat, and these minerals makes commercial granola a concentrated burden on your kidneys. For a safer option, make your own granola at home using a low-sodium, low-phosphorus recipe.

36. Canned Tomato Juice: A Salty, High-Potassium Start

While tomatoes are rich in vitamins, canned tomato juice can be a significant hidden source of sodium and potassium, making it a very poor choice for kidney health. Many brands add salt as a preservative and flavor enhancer, leading to a high-sodium beverage that can contribute to high blood pressure. Additionally, tomatoes are naturally high in potassium, a mineral that impaired kidneys struggle to filter. The concentrated nature of the juice makes it easy to consume a large, and potentially dangerous, amount of both sodium and potassium in one sitting. A better choice is to eat a few slices of a fresh tomato or use a small amount of low-sodium tomato paste.