Onions, also known as allium bulbs, are a root vegetable belonging to the Amaryllidaceae family. Originating in Central Asia, onions serve multiple purposes in daily life—consumed as a vegetable and valued for their medicinal properties.
1. Eating onions may help prevent cancer
Onions are a nutrient-rich vegetable. Consuming them can dispel cold, induce sweating, aid digestion, and eliminate phlegm. Additionally, they contain high levels of vitamin C and carotene—natural antioxidants that effectively inhibit carcinogenic nitrates. Thus, eating onions may contribute to cancer prevention.
2. Onions kill bacteria
Bacteria-killing properties are another major benefit of eating onions. They effectively combat various pathogenic bacteria in the human body, including diphtheria bacillus and Staphylococcus aureus. Regular onion consumption also helps stabilize blood pressure and prevent arteriosclerosis.
It's important to note that onions aren't suitable for everyone. For many individuals with specific health conditions, consuming onions can have adverse effects. So who should avoid eating onions?
Onions should not be consumed with these 4 foods. (Friendly reminder: Everyone's constitution is different, so effects may vary. These recommendations are for reference only.)
1.Onions and Honey
Onions and honey should not be consumed together. This combination is harmful to the eyes, causing discomfort and potentially leading to blindness in severe cases.
2. Onions and Kelp
Onions and kelp should not be eaten together. Kelp is rich in iodine and calcium, while onions contain oxalic acid. Consuming them together may contribute to the formation of stones.
3. Onions and Fish
Onions and fish should not be eaten together. Fish is rich in protein, and when combined with onions, the oxalic acid in onions can break down and destroy the protein in fish, leading to health issues.
4. Onions and Tea
Onions and tea should not be consumed together. Onions contain sulfur compounds that can react with the tannins in tea, potentially causing stomach discomfort or even diarrhea.
3. Onions and Fish
Onions and fish should not be consumed together. Fish is rich in protein, and when eaten with onions, the oxalic acid in onions breaks down and destroys the protein in fish, causing it to precipitate and become difficult for the body to digest and absorb.
4. Onions and Shrimp
Onions and shrimp should not be eaten together. Consuming them together can form calcium oxalate and lead to stone formation.
Eating onions can effectively help prevent cancer. You can frequently use onions in cooking, as they offer numerous benefits.