Heartburn could be caused by several factors – too little good quality stomach acid, high intake of processed foods, too much stress, etc. The real solution is to fix your digestion, by changing your diet and lifestyle. However, here are a few quick tips. Half an hour before you eat, have a tall glass of pure water. This will help your buffer the walls of you stomach and let your system secrete strong stomach acid without worrying about damage. Next, eat in peace and chew every mouthful of food completely before swallowing it. This way, a lot of the food, especially the carbs, get mostly digested in the mouth itself, reducing the digestive load on the stomach. Go for a light walk after a meal, this helps settle it. Finally, you can try the dietary supplement called Raft Forming Alginates, made from seaweed, after a meal. This prevents acid fumes from coming back up your food pipe, reducing heartburn. You can look at a full list of supplements that support relief from heartburn.