Many people think stomach acid is harmful but it is essential for breaking down food and absorbing nutrients. Low stomach acid can lead to bloating indigestion and nutrient deficiencies. Signs of low stomach acid include acid reflux bloating after meals and frequent burping. To support stomach acid production try eating bitter foods like arugula and lemon drinking apple cider vinegar before meals and avoiding excessive processed foods. Proper stomach acid levels lead to better digestion and nutrient absorption.