There are a few banana juice side effects that range from the potentially life-threatening to the mildly irritating. You should make yourself aware of these before eating the fruit or drinking its juice.

Banana Juice Side Effects And Constipation

As unripened, green bananas are particularly high in starch, there is a risk for constipation when consumed. In addition, a banana eaten before its proper time is high in pectin, which absorbs the fluid in the digestive tract and thus hardens the stool. However, as long you avoid unripened bananas, constipation is not a problem that you are likely to face.

Allergic Reactions

There are actually two possible types of allergic reactions linked to bananas – pollen allergies and latex allergies.

An allergic reaction to the pollen from banana trees may not be present at first, but can develop over time if you are already allergic to other types of tree pollen such as birch. Symptoms of an allergic reaction to tree pollen may show themselves immediately or take up to an hour after consumption to appear. The symptoms are typically isolated to the mouth and throat and may include swelling and inflammation of the lips and mouth, runny or congested nasal passages, itching, bloodshot eyes, and general fatigue.

If you are an individual with a history of allergic reactions to latex-based products you may also come to develop a reaction to bananas due to the fact that the banana is somewhat similar to natural latex. This condition is known as latex-fruit syndrome. Symptoms often vary, but can include hives, abdominal pain, swelling, inflammation, itching, and vomiting. Severe reactions can include anaphylactic shock, which includes a sudden and severe drop in blood pressure, and is potentially life-threatening.

So long as you avoid consuming unripened bananas and do not have a history of tree pollen or latex allergic reactions it is highly unlikely that you will experience any negative banana juice side effects.