Making use of the trial and error method has been very commonly used in great scientific studies, when the solution takes an elusive turn. Same principle is frequently applied in sodbrennen hilfe  to learn which foods are offering help in relieving heartburn symptoms and which of them are triggering a heartburn occurrence.
There are definitely some foods, which are helpful in relieving heartburn symptoms and preventing its reoccurrence also.
If the hit and trial method is to be applied practically in determining foods which are really helpful a diary record of all the activities need to be maintained recording correctly the observations made.
The foods like apples, bananas and vegetables like broccoli, carrots, the beans like peas, fat free non-vegetarian foods like breast piece of chicken, fish, cheese prepared from skimmed milk, unpolished brown rice and whole grain bread are not going to cause heartburn, rather there shall be relief in the symptoms.
People are quick in co-relating certain category of food responsible for causing heartburn symptoms. Such foods are tea, coffee and cola drinks, spicy foods which are known to trigger the heartburn by relaxing the lower esophageal sphincter causing reflex flow of gastric acid in to esophagus causing heartburn.