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Cashews have long enjoyed a spot among the esteemed members of the nut family, gracing snack bowls, trail mixes, and gourmet recipes alike. With their creamy texture, delightful crunch, and rich nutritional profile, they’re a staple in many households and cuisines worldwide. But what if we told you that cashews, the humble kitchen favorite, aren’t actually nuts?
Much like peanuts, which are scientifically classified as legumes, cashews belong to a completely different botanical category. Surprising, right? This article delves deep into the botanical intricacies and culinary mysteries surrounding cashews, offering a clearer understanding of where this beloved ingredient truly belongs.
To unravel the mystery of cashews, it’s essential to first understand what defines a "true" nut. Botanically, a nut is a dry fruit encased within a hard shell, containing a single seed. The hard shell doesn’t split open when the fruit ripens, distinguishing nuts from other plant-based foods. Examples of true nuts include acorns, chestnuts, and hazelnuts. These are the quintessential representatives of the nut family.
In contrast, many foods colloquially referred to as nuts—like cashews, almonds, and pistachios—do not fit this scientific definition. So, if cashews aren’t nuts, what are they?
Cashews are classified as drupes. Drupes are fruits that have a fleshy exterior surrounding a single seed encased in a hard shell. The part we consume—the cashew “nut”—is the seed of this drupe.
The cashew tree, scientifically known as Anacardium occidentale, produces a fascinating fruit structure. The visible pear-shaped cashew apple, which often draws attention, is not the actual fruit. Beneath it hangs a small, kidney-shaped drupe. Inside this drupe lies the cashew seed, which is what we eat.
Interestingly, the cashew’s outer shell is inedible due to the presence of urushiol, a toxic compound also found in poison ivy. This makes the processing of cashews labor-intensive, as the shells must be carefully removed to ensure safety.
Given their culinary similarity to peanuts, you might wonder if cashews are legumes. However, legumes grow in pods containing multiple seeds that split open when mature. Examples include beans, peas, and peanuts.
Although cashews, like peanuts, can be split in half, their development within a drupe rather than a pod excludes them from the legume family. Cashews occupy a unique botanical category, making them difficult to classify strictly.
While cashews may not be nuts by botanical standards, they’re treated as nuts in the culinary world. Why? Because cashews share many characteristics with true nuts:
Nutritional Profile: Like nuts, cashews are rich in healthy fats, protein, and essential nutrients, making them a key ingredient in energy-boosting snacks and recipes.
Culinary Uses: Cashews are versatile and can be used in everything from nut butters and trail mixes to stir-fries and desserts, much like almonds or walnuts.
Interestingly, many popular “nuts” aren’t botanically nuts either. Walnuts, pecans, pistachios, and almonds are also drupe seeds. Even with their misclassification, cashews’ nutritional and culinary contributions have cemented their place in the nut aisle.
Regardless of classification, cashews are undeniably nutritious. They are packed with essential nutrients like magnesium, zinc, iron, and vitamins B6 and K. Their high content of monounsaturated fats supports heart health, while their protein and carbohydrate content make them a satisfying snack for sustained energy.
Cashews are also an excellent plant-based source of copper, which plays a vital role in energy production, brain health, and immune function. Adding them to your diet can offer numerous health benefits, whether sprinkled over salads, blended into creamy sauces, or enjoyed as a simple roasted snack.
Understanding the botanical classification of cashews not only satisfies curiosity but also highlights the incredible diversity of plant-based foods. It’s a reminder of the complexity of the natural world and the importance of accurate labeling in agriculture and nutrition.
Moreover, cashews’ unique classification showcases their versatility. Whether you consider them nuts, drupes, or seeds, there’s no denying their culinary and health value. Their rich flavor, satisfying texture, and nutrient-dense profile make them a standout ingredient across cuisines and diets.
So, are cashews nuts? Botanically, no. Cashews are drupe seeds, with a fascinating journey from tree to table. Yet, in the culinary world, they’ve earned a spot alongside true nuts, thanks to their similar flavor, texture, and nutritional attributes.
Regardless of their classification, cashews are a delicious, versatile, and nutritious food. Whether you’re enjoying a handful as a snack, blending them into a creamy vegan sauce, or incorporating them into a dessert, cashews deserve a place in your pantry and your diet.
Next time you reach for a bowl of “mixed nuts,” remember the botanical intricacies that make each ingredient unique- and give a little extra appreciation to the not-so-nutty cashew!
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A fit and otherwise healthy man in his fifties has been left without sensation on the entire left side of his body after suffering a stroke linked to his daily energy drink habit. Doctors were puzzled at first because his medical history was clear, yet his blood pressure was extremely high. It was only when he admitted to drinking about eight cans a day that they traced the cause of the clot in his brain.
The case has prompted specialists writing in the BMJ Case Reports journal to push for tighter oversight of energy drinks, which are consumed by more than 1.7 million people in the UK. Concerns about their safety have grown in recent years, especially since some contain more caffeine than several shots of espresso.
Reaching for an energy drink may feel like a quick solution when fatigue sets in, but with rising questions about their health impact, experts are asking people to be careful. A December 2025 case report in BMJ Case Reports described how heavy use of energy drinks may raise the risk of heart disease and stroke.
The man in his fifties arrived at the hospital with extremely high blood pressure. He had weakness on the left side of his body, numbness and trouble with balance, walking, swallowing and speech. Tests confirmed a stroke. His blood pressure dropped with treatment, but once he returned home, it rose again despite being on medication.
Further questioning showed he had been drinking roughly eight energy drinks every day. Each one contained around 160 milligrams of caffeine, far above the recommended daily amount. When he stopped drinking them, his blood pressure settled and he no longer needed medication.
Many energy drinks have high levels of caffeine and sugar, both of which can raise health concerns.
“Too much caffeine can disrupt sleep, worsen insomnia and add to mental health strain,” Dr. Frank Hu, a professor of nutrition and epidemiology at Harvard Medicine School of Public Health, told TODAY.com.
The FDA advises that up to 400 milligrams of caffeine a day is safe for most adults. A single energy drink can reach or exceed that range, Hu said. A small energy shot can contain around 230 milligrams of caffeine, an 8.4-ounce drink can have about 80 milligrams and a 20-ounce can may reach 190 milligrams. People react to caffeine differently, the FDA notes.
Katherine Zeratsky, a registered dietitian nutritionist at Mayo Clinic, said that caffeine on its own may be safe for many, but when it is combined with other stimulants commonly found in energy drinks, the total effect may be too strong for the heart and blood vessels.
“The idea is that caffeine mixed with other ingredients creates a stronger stimulant response that affects heart rate, heart rhythm or blood pressure,” Zeratsky told TODAY.com. “That is what can send someone to the emergency department with a cardiac issue.”
Along with caffeine, Hu and Julia Zumpano, a registered dietitian at the Cleveland Clinic’s Center for Human Nutrition, pointed out another problem in many energy drinks: large amounts of sugar.
“Excess sugar contributes to weight gain, obesity and Type 2 diabetes. Because these drinks offer calories without nutrients, it is very easy to take in more than you realise,” Hu said.
Zumpano noted that this sugar load is especially risky for people with diabetes, obesity, heart disease or high triglycerides, which increase the chance of heart attack and stroke. “These drinks can also play a part in developing those conditions,” she said.
If you need an energy boost, the experts encouraged choosing options that are healthier than energy drinks. But if you still decide to buy one, they suggested checking the label closely. Try to avoid caffeine and sugar levels that exceed daily recommendations and stay cautious of long ingredient lists.
Energy drinks often contain caffeine, sugar, added vitamins and amino acids. Common ingredients include ginseng, guarana, L-carnitine and taurine. Zumpano explained that while these may be considered safe on their own, their combined effect is not well understood.
“Some of these ingredients are familiar, and for others we do not have enough strong research, so they are not recommended if you plan to drink them often,” she said. She advised avoiding drinks with ingredients you do not recognise and choosing those with simpler formulations.
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Eggoz, a premium egg-selling company landed in a controversy after a YouTube video went viral claiming that their sample had tested positive for Nitrofuran. This chemical is a broad-spectrum antibiotic, but is banned due to concerns about potential carcinogenicity and persistent residues. Studies have also shows that nitrofuran and its metabolites could cause cancer.
Trustified, a brand that provides laboratory testing shared a video that claimed to have found genotoxic substances in eggs produced by Eggoz Nutrition. This led to questions which were raised on the nutritional value of the eggs sold by the brand.
Arpit Mangal, who runs the social media channel, said that lab tests on eggs sold under the Eggoz brand showed the presence of AOZ, a marker that can signal past exposure to nitrofuran antibiotics during poultry production. He also shared an Instagram reel titled “Real Egg vs ‘Plastic Egg’ Claims – Lab Test Teaser,” telling viewers, “When was the last time you questioned the quality of your eggs? We took a deep dive into Eggoz, a brand everyone knows, and ran a test that’s never been done before. The results left us shocked.”
Dr Sudhir Kumar, senior consultant Neurologist, Apollo Hospital told Times Now, "As of now, we do not need to get concerned, because it is well within the permissible limits, as with this much minute amount, there is no risk of cancer."
Experts say that while AOZ traces could be alarming, one needs to interpret the findings for scientific clarity.
"Eggs definitely have lots of benefits; they are a good source of protein and have vitamins, including B12. So, as of now, people should consume, but just that they should make sure that, yes, they are from a trusted source, and there should definitely be awareness that even good brands can have chemicals,” he added.
AOZ, or 3-amino-2-oxazolidinone, is a metabolite linked to nitrofurans, a class of antibiotics that should not be used in poultry because of their potential to cause cellular and DNA-related damage when consumed in large or long-term doses. Experts clarify that finding trace amounts of AOZ in an isolated sample does not mean eggs are cancer-causing or unsafe for the public. Instead, its presence signals that the parent drug may have been used at some point.
Specialists explain that AOZ binds tightly to animal tissues and can linger long after the original antibiotic has broken down. This is why regulators consider AOZ a red-flag marker indicating previous exposure to nitrofurans rather than a direct toxin in itself.
Scientific studies have linked nitrofurans and their breakdown products to possible carcinogenic and mutagenic effects in animals. These concerns prompted many countries to introduce strict bans on their use in food-producing animals, including poultry, pigs, shrimp, and aquaculture.
Nitrofurans were once popular in farming because they were inexpensive and worked effectively against a wide range of infections. However, they quickly convert into metabolites such as AOZ, AMOZ, AHD, and SEM, which become bound to tissues and can remain detectable for weeks. This persistence makes it difficult for authorities to monitor and prevent illegal use, and it raises concerns about potential long-term health risks for consumers.
Today, regulators in the European Union and several other regions use highly sensitive laboratory tests designed to detect these metabolites directly in products like meat, eggs, honey, and seafood. These tests help identify residues even when the original drug has vanished, ensuring greater oversight and food safety.
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Energy Drinks And Stroke Risk: An absolutely fit and healthy man, 54, a runner too, a non-smoker, non-drinker and off the drugs, suffered a stroke that caused permanent damage to him. This is after he consumed energy drinks. It all started when he suddenly noticed a weakness in his left side of the body. It started with numbness and difficulties with balance, walking, swallowing and speech. This is when his family member rushed him to a nearby stroke clinic.
According to CNN: “His blood pressure was sky high, about 254 over 150 millimeters, yet when you looked at him you’ve never know it, because he looked so well. That’s why we call hypertension the silent killer,” said Dr. Sunil Munshi, a consulting physician at Nottingham University Hospitals NHS Trust in the United Kingdom.
The man was a warehouse worker from Sherwood, Nottingham and the case is published in BMJ Case Reports, with Munshi being the senior author of the paper.
As per Dr Munshi, the patient arrived at the hospital with numbness on his left side. Scans revealed a stroke in the thalamus, a deep part of the brain responsible for balance and coordination.
“His left side was numb, and scans showed he had a stroke in the deeper part of the brain, the thalamus, which explains the unsteadiness,” Dr. Munshi said. The man was admitted, and doctors began aggressive treatment. He required five different medications before his blood pressure fell to 170. Normal adult blood pressure is below 120 over 80 millimeters of mercury. Readings of 180 over 120 or higher qualify as a medical crisis.
Once discharged, the situation worsened. At home, his blood pressure rose again, reaching 220 despite continued treatment. With no clear medical cause, doctors conducted extensive tests. Everything came back negative.
The breakthrough came only when the man casually mentioned his daily habit. To stay alert on long shifts, he drank eight highly potent energy drinks every day, two cans at four separate points. Each can contained about 160 milligrams of caffeine.
Study first author Dr. Martha Coyle noted that some energy drinks contain up to 500 milligrams of caffeine per can. For comparison, tea has about 30 milligrams and coffee about 90. In the United Kingdom, adults are advised to consume no more than 400 milligrams of caffeine a day. This man was taking in more than 1,200 milligrams, about triple the recommended limit. The US Food and Drug Administration gives the same advice.
After he stopped drinking energy beverages entirely, his blood pressure returned to normal within weeks. He is healthy today, but the stroke left lasting effects.
“I obviously wasn’t aware of the dangers,” the man told his doctors. “I have been left with numbness on the left side, in my hand, fingers, foot and toes even after eight years.”
Researchers say the problem extends far beyond caffeine. Many energy drinks contain taurine, an amino acid that can raise blood pressure even more when combined with caffeine. High sugar levels also contribute to blood vessel damage.
“These drinks contain combinations of ingredients that increase blood pressure, affect metabolism and may damage blood vessels,” Dr. Munshi said. The beverages often include ginseng, guarana, theophylline and theobromine, all stimulants that can further strain the cardiovascular system.
Doctors have documented cases of cardiac arrhythmias, hemorrhages and strokes linked to heavy energy drink use. Some young adults combine them with cocaine or methamphetamine, a mix Munshi described as capable of causing “havoc.”
Munshi believes this case should push doctors to ask patients about energy drink use, especially younger individuals presenting with heart issues or stroke-like symptoms. He said the drinks have become more potent over time and may warrant stricter regulation and clearer public warnings.
“We propose increased regulation of energy drink sales and advertising, which are often targeted at younger ages,” he said.
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