Pineapple, also known as pineapple, is a popular fruit all over the world because of its delicious taste and high nutritional value. However, excessive consumption can cause unwanted effects on health.
The "secret weapon" in pineapple
Pineapple is a rich source of essential nutrients that support the immune system, digestion, and bone and joint health. According to Caroline Susie, a spokesperson for the American Academy of Nutrition and Dietetics, 165g of fresh pineapple provides more than 100% of the daily vitamin C requirement for adults.

Pineapple contains many nutrients that are good for health (Illustration: Pexels).
Vitamin C not only boosts immunity and promotes collagen production, but also helps neutralize free radicals, preventing premature aging and cell damage. In addition, pineapple is rich in manganese (about 75% of daily requirements in 165g), an important mineral for bone formation and energy production.
The abundant fiber in pineapple helps create a feeling of fullness for a long time, aids digestion, regulates blood sugar and maintains a healthy intestinal microflora. In particular, the enzyme bromelain in pineapple has anti-inflammatory properties and aids digestion by breaking down proteins, making food easier to digest.
Some studies also show that bromelain can reduce swelling and promote recovery after surgery or strenuous exercise.
Pineapple also contains a moderate amount of vitamin B6, which plays an important role in brain development, mood regulation, energy metabolism and hormonal balance.
During the hot season, pineapple juice is often chosen to replenish water and vitamins. However, nutritionist Shelley Rael warns that pineapple juice, although retaining most of the vitamins and minerals, loses most of the fiber during the juicing process.
This causes the sugar in the juice to be absorbed faster, easily causing hyperglycemia, especially in diabetics. Moreover, to have a glass of juice, a large amount of pineapple is needed, resulting in a significant increase in sugar and calories.
As for pasteurized pineapple juice, experts say that heat can destroy some of the vitamin C and bromelain. Some types also contain added sugar or preservatives, reducing nutritional value.
Should you eat pineapple every day?
Although pineapple has many benefits, experts recommend consuming it in moderation. The high natural sugar content in pineapple can cause tooth decay, weight gain, or blood sugar fluctuations, especially in people with diabetes.
"People with diabetes need to be especially careful when eating pineapple due to its high sugar and carbohydrate content. It's best eaten with a source of protein and fat to help control blood sugar better," notes nutritionist Kristina Cooke.
Eating too much pineapple can also cause digestive upset such as bloating or abdominal cramps. Some people also experience a burning or tingling sensation on their tongue after eating a lot of fresh pineapple due to bromelain breaking down proteins in the lining of the mouth.
People with conditions such as acid reflux, irritable bowel syndrome or those who are sensitive to acid should limit pineapple because the acidity of this fruit can aggravate symptoms.
Additionally, pineapple can interact with certain medications, such as anticoagulants and some antibiotics. Therefore, Susie advises that people who are taking prescription medications should eat pineapple in moderation or consult their doctor before eating it.
Source: https://dantri.com.vn/suc-khoe/dieu-gi-xay-ra-voi-co-the-khi-an-dua-qua-nhieu-20250805083359999.htm
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