14 Major Side Effects of Eating Too Many Pineapples

Pineapple ( Ananas comosus )is a delicious crown shaped fruit that grows on the tropical plant of the same name. It is a good source of a number of essential nutrients like vitamins, minerals, phytonutrients, antioxidants, etc. and the presence of these nutrients make it a wonderful fruit for our health, skin and hair.No doubt, pineapple is a great fruit but just like every other thing it is important to eat it in moderation as too much of pineapple can have several adverse effect on our health. We have already discussed the health and beauty benefits of pineapple and in this article, we will know about the side effects of eating too many pineapples.

Side Effects of Eating Too Many Pineapples

pineapple side effects

(1) Can Cause Allergic Reactions

Pineapple is good for our health but some individuals (both male and female)  may experience mild allergic reactions like swollen lips, getting a tingling sensation in their throat, etc. on consuming pineapple. This allergic reaction is caused by the enzymes present in pineapple. Because of this allergic reaction, it is advised to wash off pineapple slices thoroughly in clean salt water. This will wash away the enzymes responsible for causing allergic reactions and you can enjoy your pineapple without any worry.

(2) Increase  Risk Of Abortion And Miscarriage

Pineapple is good for pregnant women as it can help them from getting relief from morning sickness. However, the same pineapple can have an adverse effect on the health of pregnant women and the baby developing in her. Pineapple contains a lot of enzymes and some of these enzymes can increase uterus contractions in early stages of pregnancy which can increase the risk of absorption and lead to miscarriage.

In general, it is safe to consume pineapple in later stages of pregnancy but you should always consult your doctor about this and include it in your meal plan only on the recommendation ( and as per the recommendation) of a doctor.

(3) Excess of Pineapple Is Bad For People With Arthritis And Rheumatism

Pineapple is good for people suffering from arthritis because the anti-inflammatory properties of pineapple can provide relief from inflammation of joints. However, people suffering from arthritis and rheumatism should be careful about eating pineapple and make sure that they don’t eat them too much ( in the hope of getting more benefits) as pineapple gets converted to alcohol on reaching the gastrointestinal tract, and this alcohol can affect arthritis patients in a very negative manner and increases the risk of fracture.

(4) Can Increase Blood Sugar Level

Pineapple is good for people suffering from diabetics as it helps in regulating blood sugar level but still, it is a fruit that contains a lot of natural sugar like sucrose and fructose. Although these are simple sugar they are not so good for diabetic patients when consumed in excess. Because of this reason, diabetic patients are advised to keep their pineapple intake limited to one to two servings per day.

(5) Can Interact With Certain Medications

The bromelain present in pineapple is great for our health as it provides a lot of benefits but it can also interact with some medications like antibiotics and anticonvulsants, causing trouble for some users. So, if you are on these medications then you should first consult with your doctor before eating this fruit.

(6) Unripe Pineapple Can Cause Vomiting

If you are a pineapple fan and loves to eat them or drink them in the form of juice for its delicious taste and the various benefits provided by this crown-shaped fruit, then make sure that you are always eating ripe pineapples. This is because unripe pineapple are toxic in nature and consuming them either in the form of juice or as fresh fruit can be very risky for our health and may lead to severe vomiting.

(7) Can Cause Redness In Mouth And Throat Infections

Pineapple is a good source of vitamin C which makes it acidic in nature. This acidic nature of pineapple can affect the production of mucus in our throat and mouth, causing a raw sensation in our throat and mouth. In some people, it can also cause stomach ache. Eating too many pineapples can worsen the condition giving rise to throat infections.

(8) Can Interact With Blood Thinning Drugs

Pineapple is beneficial for providing relief from blood clots because of the presence of bromelain in it. However, if you are already on anticoagulant ( blood-thinning drugs) medicines then you should avoid eating pineapple as eating pineapple and taking anticoagulant medicines together can have an adverse effect on our health.

(9) Can Interact With Blood Pressure Medication

Pineapple is a good source of potassium which helps in regulating blood pressure. However, if you are already taking medications for controlling hypertension then you should be careful about eating pineapples. This is because eating pineapples combined with medicines for controlling hypertension can reduce our blood pressure to a dangerously low level. People suffering from high blood pressure and taking medication for the same should first consult with their doctor before eating pineapple.

(10) Too Much of Bromelain Is Bad

Bromelain present in pineapple is an important antioxidant enzyme that provides many benefits but there are also some risks associated with it. Bromelain can break down the proteins present in our body and this can lead to the development of dermatitis in some people and in some people it can trigger allergic dermatitis ( not so common though). Dermatitis is a condition in which our skin becomes red, swollen, sore and sometimes blistered.

So, if you experience any such symptoms after eating pineapple then you stop eating them immediately.

(11) Can Stain Our Teeth And Hurt Enamel

Regular and moderate consumption of pineapple is good for oral health as it keeps our teeth and gums healthy but eating too many pineapples can have a negative impact on our health as it can stain our teeth because of the presence of sugar in it. In the same way, the acidic nature of pineapple can hurt the enamel of our teeth. If you are dealing with oral issues like cavities on teeth, gingivitis, etc. then you should eat it in moderation.

(12) Not Suitable For People Who Are Allergic To Pollen And Dust

People with an allergy to dust or pollen should be careful about eating pineapple as our body can easily get confused between the protein present in our body with the pollens and other particles for which our body is allergic. Now, how pineapple fits in this context goes like this- “ Some individuals who are allergic to pollen or dust also show the symptoms of allergy when they eat certain food like pineapple, apples, peaches, almonds, etc.. This is known as  “ Oral Allergy Syndrome”.

In short, if you are allergic to pollen or dust then you should be careful about consuming pineapple and if you see any symptoms like burning sensation in the lips, mouth, ear canal, etc. or swelling of lips, tongue, tightness of throat then you should stop eating pineapple.

(13) Can Cause Diarrhea And Other Health Problems

Vitamin C present in pineapple is good for our health because of the benefits provided by it. However, the excess of vitamin C is not good as it can give rise to health problems like vomiting, heartburn, diarrhea, insomnia, abdominal pain, etc. It is important to note that vitamin C is water soluble vitamin which means our body consume it as per its requirement and flush out the excess vitamin C along with urine. But, not when you are taking an overdose.

(14) Give Rise To Kidney Disorders

Pineapple is a good source of potassium which helps in regulating blood pressure and keeps our heart healthy. However, too much potassium is not good because a high concentration of potassium can increase the risk of kidney failure because it will put the burden on kidneys to excrete out the excessive potassium. So, if you are suffering from kidney problems then you should be careful about eating pineapple and first consult your doctor before adding pineapple to your fruit platter.


The information contained in the post is for general purpose only and shouldn’t be considered as medical advice or as an alternative to medical advice. Although I’ve tried my best to keep the information contained in this post as accurate and updated as possible, I make no guarantee of the accurateness of the same.

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