Pineapple, named for its resemblance to a pinecone, has long been used as an ancient home remedy for digestive issues and inflammation. It has also been studied for its potential benefits to the immune system and ability to reduce healing time.
There are more than 100 different varieties of pineapple, but only eight varieties are grown commercially.
In this article, we examine some of the health benefits that can come with drinking pineapple juice. We also take a look at some tips for adding pineapple juice into a diet, and some things to consider with juice intake.
Five health benefitsHere are a number of possible health benefits from drinking pineapple juice in moderation:
1. Boosting the immune system
Drinking pineapple juice may boost the immune system and shorten recovery time from illnesses.
In one study conducted in the Philippines, researchers examined the effects of pineapple in school-aged children.
Those who were given canned pineapple daily developed fewer viral and bacterial infections than those who did not eat canned pineapple. Their recovery time from these illnesses was also shortened.
Bromelain is an enzyme contained in the pineapple stem and juice that helps to break down and digest proteins. Bromelain in capsule form has also been shown to reduce swelling, bruising, healing time, and pain after surgery.
Consuming pineapple and pineapple juice will not provide enough bromelain to be used as medical treatment for healing, however. Common processing procedures used when making pineapple juice severely decrease the amount of bromelain contained in the juice.
Further studies in humans need to be conducted before any connections between pineapple juice and cancer are made.
In another study, people who ate more beta-carotene-containing foods than others were found to have a reduced risk of developing colon cancer.
Vitamin C also helps with collagen formation, which is a common protein in the body that gives the skin its strength and structure.
The vitamin C found in pineapple may help keep eyes healthy and free from cataracts.
One study found that diets rich in vitamin C can cut the risk of cataract formation by one third. The researchers examined the effects of such diets in 1,000 pairs of female twins in the United Kingdom.
The fluid inside the eye contains vitamin C, and a diet rich in vitamin C may help to maintain that fluid and prevent the breakdown that leads to cataracts.
According to the United States Department of Agriculture Agricultural Research Service, one cup (250 grams) of canned, unsweetened pineapple juice contains:
- 132 calories
- 0.9 grams of protein
- 0.3 grams of fat
- 32 grams of carbohydrate
- 0.5 grams of fiber
- 25 grams of sugar
One cup of pineapple juice provides 63 percent of an adult's daily needs for manganese, 42 percent of their daily vitamin C, and 10 percent or more of thiamin, vitamin B-6, and folate.
Pineapple also contains the following nutrients:
Because processed store-bought juices often have a lower nutritional content, the best juice is made at home.
People should be sure to pay attention to serving size when it comes to all fruit juices. Although they do contain vitamins and minerals, they are also high in carbohydrates and sugars.
Pineapple juice has a naturally sweet but tart taste. It is most healthful to choose pineapple juice that does not contain added sugar.
People can try to make their own pineapple juice at home to get the most nutritional benefits. The processing and storing of juice often decreases nutrient content.
When someone is making their own juice, they can be sure there are no added preservatives or sweeteners. People can also be certain that they are getting the most nutrients from the ripe fruit.
Some people may experience tenderness or discomfort in the mouth, lips, or tongue after consuming pineapple juice due to the enzyme bromelain. Extremely high exposure to bromelain can cause rashes, vomiting, and diarrhea.
Bromelain can also interfere with some medications, including some types of the following drugs:
Consuming too much potassium can be harmful for those whose kidneys are not fully functional. If someone's kidneys are unable to remove excess potassium from the blood, it could be fatal.
People with a latex allergy are more likely than others to be allergic to pineapple. Latex allergy symptoms can range from mild to severe and may include the following:
Anyone who experiences these symptoms after consuming pineapple juice should see a healthcare provider.