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The onion, a staple in kitchens around the world, is not only one of the oldest known foods but also one of the most versatile. This vegetable makes its way into countless dishes, adding flavor to nearly every meal. If you think onions are only good for seasoning, think again—there’s so much more you can do with them.
10. Harmful for Dogs
While onions are a beloved ingredient in many human meals, they pose a serious danger to dogs. The toxin found in onions, called allyl propyl disulfide (or N-propyl disulfide), can cause the breakdown of red blood cells in dogs. This condition, known as secondary autoimmune hemolytic anemia, can be deadly if not addressed.
It’s crucial to understand that whether cooked, boiled, or fried, onions all retain this dangerous toxin. Although a large quantity is typically required to cause fatal effects, even small amounts can harm your dog. Some might think that dogs could benefit from onions nutritionally, but the risks far outweigh any potential gains from these harmful substances.
9. Once Used as Currency
Onions have a rich history, with their uses stretching back through the ages. In the Middle Ages, onions were so valuable in Europe that they became a form of currency. People exchanged onions to cover essential costs like rent, and they were even given as gifts. While onions may not be a popular wedding gift today, they were once a symbol of goodwill, even for weddings. Remarkably, the Serbians continued using onions as currency until the mid-18th century.
8. Fantastic for Hair Health
Everyone dreams of having thick, radiant hair, and onions might just be the key! Known primarily for their culinary uses, onions have benefits that go far beyond the kitchen. Onion juice has long been regarded as an effective treatment for hair issues like thinning, hair loss, dry scalp, and dandruff.
Onions are packed with sulfur-rich compounds that promote health. These compounds encourage the production of keratin, the protein responsible for hair growth. They can also help with conditions like Alopecia Areata, a common cause of hair loss. To create onion juice, peel and chop the onions, then extract the juice by squeezing or using a juicer. Apply it directly to your scalp to begin enjoying the hair-boosting benefits. Just a word of caution: this remedy is best saved for after your date, not before!
7. Helps Fight Osteoporosis
Osteoporosis is a condition where bone density decreases, causing bones to become weak and more prone to fractures. Onions may act as a powerful food to combat osteoporosis. They are packed with antioxidant-rich flavonoids, which help reduce inflammation and protect bones from damage. Additionally, the sulfur compounds in onions play a key role in safeguarding collagen in both bones and arteries.
A study conducted by researchers at the University of Bern in Switzerland discovered a compound in onions that helps reduce bone loss. The compound, known as GPCS, was found to significantly slow the loss of bone minerals in rats. This suggests that consuming onions could help prevent bone loss and provide protection against osteoporosis.
6. Revered in Ancient Times
In Ancient Egypt, the onion was more than just a food—it was also a symbol of divine reverence. The Egyptians viewed the onion's spherical shape and circular rings as representations of eternal life. It's believed that the workers who built the pyramids were nourished with onions, and paintings of this sacred vegetable have been discovered adorning the walls of the pyramids and various tombs.
The onion held a deep symbolic meaning of eternity in ancient Egypt, which is why it was commonly buried with Pharaohs. Onions were often found in the pelvic area, thorax, near the ears, and placed in front of the eyes of mummies. They were also positioned on the soles of the feet, and flowering onions were placed over the chest. Notably, King Ramses IV was interred with onions in his eye sockets.
5. Used for Cleaning Metal Objects
If you're looking to clean metal objects like silverware, onions may be an unexpected yet effective solution. Onions can help remove light rust from thin metals such as knives and silverware. Simply insert the metal into the onion and let it sit for a few hours. Once removed, rinse the metal as usual and discard the onion, which will have absorbed the rust.
Onions can also be used to clean your outdoor grill. The 'onion method' is an eco-friendly and effective way to remove grease and grime. Begin by heating the grill on high for a few minutes, then spray the grates with lemon juice or white vinegar. Cut an onion in half and rub the cut side along the grates, scrubbing away the dirt. Just be sure the grill is still hot when you do this!
4. Heals Injuries & Stimulates Blood Circulation
Poor circulation can affect many individuals, caused by a variety of conditions. While medications are often prescribed to treat this, consuming specific foods can also help improve blood flow. Onions are one such food that can benefit those with circulation issues. Packed with flavonoid antioxidants, onions aid circulation by expanding veins and arteries, allowing for increased blood flow. A 30-day study on men revealed that onion extract significantly improved blood circulation after meals.
In addition to improving blood circulation, onions can also help with minor injuries. They are a natural remedy for small cuts and scrapes. To use an onion for healing, crush half of one in a blender and apply the paste to the wound for about 20 minutes. This can be done up to three times a day. During the Civil War, onion juice was commonly used to treat gunshot wounds, and General Grant even famously wrote to the War Department saying, 'I will not move my troops without onions.'
3. They Really Do Make You Cry
We shed tears over a variety of emotions—grief, heartbreak, joy—but an onion can make us cry for a different reason. The reason onions bring tears is due to a chemical reaction that releases a substance into the air, irritating our eyes. This substance, known as lachrymatory factor (LF), is the culprit behind the tears. While simply peeling an onion may not make you cry, chopping, cutting, or crushing it will certainly do the trick.
There are a few ways to reduce the chances of tearing up while chopping onions. Using a freshly sharpened knife will help make precise cuts with less onion breakage, which means fewer tears. You can also peel and soak the onion in water beforehand to wash away some of the irritating compounds, although this may also wash away some of the flavor. There’s no foolproof way to avoid the tears, so you might as well embrace the cry.
2. Forecasting the Winter's Intensity
Wouldn't it be amazing if we could truly forecast the weather? It turns out, all it takes is a few onions to understand what winter has in store. In ancient times, people believed the onion's skin could indicate the severity of the coming winter. A thicker skin was said to predict a harsh winter, while a thinner skin suggested a milder season ahead. A traditional rhyme supports this belief, showing how firmly rooted this method was in folklore:
“Onion skins very thin, mild winter coming in.
Onion skins thick and tough, coming winter cold and rough.”
This old weather-predicting method only applies to onions grown in your own garden, as store-bought onions may come from faraway places. So, take a closer look at locally-grown onions to impress friends and family with your accurate winter forecast.
1. Sliced Onions Are Safe to Eat
There is a widely spread belief that raw, sliced onions absorb bacteria, making them dangerously poisonous after being left overnight. This theory suggests that cutting an onion and cooking it the next day could pose a risk. The general idea was to avoid cut onions because they supposedly become contaminated with harmful bacteria. However, this claim is completely false.
The National Onion Association (yes, that's a real organization) clarifies that properly handled onions are not poisonous. In fact, cut onions can be stored in the fridge, sealed in a container, for up to seven days. Onions' chemical structure doesn’t encourage bacterial growth, as their low pH and low protein content do not provide a good environment for germs or viruses. It's all a myth—onions are safe to consume as long as you follow proper food safety guidelines.
