DIET CHART FOR ASCITES INTRODUCTION Ascites is the accumulation of fluid in the peritoneal cavity, causing abdominal swelling and rapid weight gain. Ascites causes body to retain sodium, which in turns leads to fluid retention. A low-sodium, low-fat, and high-fiber diet that focuses on eating fresh vegetables and fruits, lean proteins and legumes,  may help prevent a body from retaining extra fluid. A high sodium diet, baked products, red meat, high-fat, refined carbohydrates, sugar beverages, junk food and fried food