12 Major Side Effects Of Eating Too Many Pistachios

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The cashew family includes the delicious and nutritious pistachio nut, which comes from the pistachio tree. Despite being a native of the best pistachios suppliers in Asia, today they are grown and eaten all over the world. Due to their abundance of vital nutrients, pistachios provide a number of health and aesthetic advantages. However, eating too many pistachios has some negative side effects, which are discussed in this article.

Side Effects Of Eating Too Much Pistachios

Some major pistachios’ side effects are as follows.

  • Promote weight gain

Pistachios have dietary fibers that give you stomach satisfaction and prevent overeating, a major contributor to obesity, therefore eating them in moderation helps you lose weight. They are delicious food that gives us energy.

However, due to their high-calorie content, eating an excessive amount of pistachios may lead to weight gain. 100 grams of pistachios have 562 calories in them, which is more than 25% of the daily caloric needs of the body.

Pistachios may also occasionally be salted to improve flavor and encourage devouring. Eat pistachios in moderation and stay away from salted pistachios to maintain healthy weight control.

  • May cause high blood pressure

High blood pressure, is also known as hypertension. It is a widespread medical disorder that affects millions of people worldwide. And is a major contributor to cardiovascular issues.

Potassium, a natural vasodilator that relaxes blood vessels, enhances blood circulation, and relieves hypertension or high blood pressure is found in pistachios. Overindulging in pistachios can produce low blood pressure. Which can lead to dizziness, nausea, blurred vision, confusion, general weakness, and fainting, among other symptoms.

Salted and roasted pistachios, on the other hand, tend to be heavy in sodium and fat and may raise the risk of hypertension and other cardiovascular issues. Eat unsalted pistachios in moderation and stay away from salted pistachios to be safe. If you take medication for blood pressure, have a word with your doctor before including any type of pistachios in your diet and ensure there’s no interference of food-drug.

  • May cause gastrointestinal problems In some individuals

Pistachios’ dietary fibers work as a natural laxative to promote bowel movement, ease constipation, and treat other digestive issues. Such as stomach aches, gas, bloating, and flatulence.

However, consuming an excessive amount of pistachios may overstimulate the digestive system. Resulting in diarrhea, stomach pain, intestinal gas, and blockages.

Some people may experience allergic responses to the “fructan” in pistachios. Which can also result in gastrointestinal issues such as bloating, diarrhea, constipation, flatulence, and abdominal pain.

  • May cause tree nut allergic reactions

If you have a tree nut allergy, avoid pistachios.

Pistachio allergy is more common in people who are allergic to other tree nuts, such as almonds, walnuts, cashews, and hazelnuts.

A tree nut allergy may result in symptoms such as nasal congestion, breathing difficulties, stomach ache, diarrhea, nausea, cramps, vomiting, difficulty swallowing, itching of the mouth, throat, eyes, skin, and other regions, etc.

Tree nut allergies can occasionally result in anaphylaxis, a severe allergic reaction that can be fatal.

  • Is harmful to those who have kidney issues.

Potassium is a crucial mineral found in pistachios. That helps to maintain electrolyte balance, regulate blood pressure, and reduce the risk of heart disease and kidney disease. Improve metabolism, reduce stress and anxiety, and improve nerve function.

Overindulging in pistachios may result in renal overload and make it harder for the kidneys. In order to get rid of extra potassium.

High potassium levels may raise the risk of internal bleeding. Type 1 diabetes, Addison’s disease, dehydration, weakness, nausea, sluggish pulse, irregular heartbeat, and other symptoms.

  • May increase the risk of kidney stones

Pistachios contain a significant amount of oxalates and methionine. Pistachio oxalates may combine with minerals like calcium and potassium to form calcium oxalates and potassium oxalates, which when ingested in excess can increase the risk of kidney stones.

Methionine from pistachios can transform into cysteine, which can result in cysteine kidney stones.

  • May cause aflatoxin allergy

Pistachios are likely to become contaminated with aflatoxin, a carcinogen produced by the fungus Aspergillus flavus, during their growth and storage in a warm, humid environment. Aflatoxin-tainted pistachio eating over an extended period of time may raise the risk of hepatitis B and liver cancer.

Aflatoxin risk may be considerably decrease by roasting pistachios.

  • Possibility of contracting with navel orangeworm

The Navel Orange worm, which can be found in the pistachio seed or in the space between the seed and shell, poses a threat to pistachios. The nutmeat of pistachios may be harm by this 25 mm long, cream-color, orange or red worm.

Aflatoxin-producing Aspergillus fungi are more likely to contaminate pistachios affected by Navel Orangeworm.

  • Risk of contracting the salmonella bacteria

Salmonella contamination is also more likely to occur with pistachios.

For newborns, the elderly, and those with weakened immune systems, it may be lethal and cause diarrhea, high temperatures, and digestive issues. Salmonella can be kill by roasting pistachios properly, but incorrect roasting might infect even clean pistachios ( due to contact with contaminated pistachios).

  • Increased pesticide and insecticide risk

To defend them against pest and insect invasions, pistachios are frequently treat with pesticides and insecticides.

Without properly washing them, pistachios that have been expose to pesticides may induce nausea, vomiting, diarrhea, and other allergic reactions when consume.

  • Increased risk of acrylamide

Pistachios that have been roaste lower their chance of developing salmonella and aflatoxin, but they also produce acrylamides while they roast.

The suspected carcinogen acrylamide may raise the risk of cancer in people.

  • Too much fiber is harmful to the stomach

Dietary fibers in pistachios have laxative characteristics that help with bowel movement and treat constipation as well as other digestive issues such as stomach pain, gas, bloating, and flatulence.

Extra dietary fiber, however, may overstimulate the gut and raise the chance of diarrhea. Additionally, it could result in poor nutrient absorption, intestinal blockage, stomach pain, and intestinal gas.


Pistachio is very important for your health, but eating too much is also able to make you serious problems. So eat pistachio for one time in a day that makes you fit and healthy.


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