Can anyone suggest tips on how to prevent heart burns due to certain food habits?

Eat smaller, more frequent meals:
A full stomach can put extra pressure on the lower esophageal sphincter (LES), which will increase the chance that some of this food will reflux into the esophagus.

Avoid tomatoes to prevent heart burn:
Some foods and beverages increase the risk of reflux by relaxing the LES. These include alcohol; beverages containing caffeine, such as coffee, tea and cola drinks; carbonated beverages; citrus fruits and juices; tomatoes and tomato sauces; chocolate; spicy and fatty foods.