Balancing your stomach's pH levels is essential in combating heartburn. Bananas do this by enhancing the protective mucus layer, which relieves pain and helps food to move faster through the digestive tract. Eating bananas can prevent acid reflux. As far as stomach ulcers are concerned, the protective mucus layer in the stomach you are building up by eating bananas works as a barrier against hydrochloric acid. They also help eliminate bacteria in the stomach, which can lead to ulcers.
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