Reducing these can help prevent stone formation. 3. Animal Proteins: Red meat, poultry, eggs, and shellfish can increase uric acid levels and lower urine citrate, contributing to kidney stones.
Tomatoes - Why to Avoid: Tomatoes are rich in tannic acid, which can increase acidity in the stomach ... Warm water or a cup of herbal tea is gentler on the stomach and helps stimulate digestion. 5.