Healthy Foods That May Be Harming Your Kidneys

55. Miso and Tamari: The Fermented Sodium Load

Miso paste and tamari sauce are celebrated in Asian cuisine and are often considered healthier, gluten-free alternatives to soy sauce. However, both are fermented and highly concentrated sources of sodium. A single tablespoon can contain over 1,000 mg of sodium, a significant portion of the recommended daily intake for a person with healthy kidneys, and far too much for someone with compromised renal function. This high sodium load forces the kidneys to work overtime to filter and excrete the salt, which can lead to increased blood pressure and fluid retention. For a kidney-friendly alternative, it's essential to use these sparingly or seek out a low-sodium version.

56. Whole Wheat Pasta: The Hidden Phosphorus

Whole wheat pasta is lauded as a healthier choice over white pasta due to its higher fiber content and nutritional value. However, like brown rice and other whole grains, it's also higher in phosphorus. The bran and germ of the wheat grain, which are retained in whole wheat products, are naturally rich in this mineral. For individuals with kidney disease, the kidneys struggle to excrete excess phosphorus, leading to a dangerous buildup in the blood. This can cause weakened bones and other serious health complications. While a part of a healthy diet for most people, a kidney-conscious diet may require a switch to enriched white pasta in moderation.