What is taboo about onions? 5 foods “more toxic than arsenic” should be avoided


Onion is a very commonly used ingredient in Asian and European cuisine. With its sweet and aromatic flavor, onions are the top choice of most women as an assistant in stir-fried and grilled dishes. Although eating onions is very delicious, onions still have many hidden dangers behind them that not all women know. So do you know? What is taboo about onions? Are not?

With just a little carelessness in the processing stage, women accidentally turn onions from benign into toxic, more dangerous and even negatively affect their lives. And today, we invite you to spend a few minutes following along Dried agricultural products Go find out what is taboo about onions? Please.

What is onion?

Onion is A type of vegetable and tuber with the scientific name Allium Cepa L, belonging to the onion and garlic family. This is a very familiar food in Vietnamese cuisine. Onions contain a lot of nutritional value that is beneficial for health. By consuming onions, your body will fully absorb vitamins, minerals and fiber.


Onions contain a lot of nutrition but are extremely low in calories. There are only about 32 calories in 100 grams of onions. An extremely common mineral in onions is Potassium. In parallel, there are organic sulfur compounds and Quercetin content.

Onions can be easily found in supermarkets and local markets in your area. Onion prices are also relatively cheap, you can buy them according to the volume you need to process. In cuisine, onions are commonly used in stir-fries, grilled dishes, etc. to create a delicious flavor for dishes.

Nutritional value of onions?

Onions are not only an ingredient that adds deliciousness to dishes, but this tuber contains a lot of nutritional value that is beneficial for health.

According to United States Department of Agriculture (USDA) said that 100 grams of onions provide nutrients such as:

  • 39 drop
  • 0.1gr lipid
  • 0g saturated fat
  • 0mg cholesterol
  • 4mg Sodium
  • 9gr carbohydrate
  • 1.7 grams of fiber
  • 4.2 grams of sugar
  • 1.1gr protein
  • 74mg vitamin C
  • 0.2mg iron
  • 10mg magie
  • 23mg calcium

That is the entire nutritional value in onions. These are all very important substances that you should supplement your body with. Preparing dishes with the presence of onions will help your dishes become delicious and your body can easily absorb nutrients.

Uses of onions

Some nutritional ingredients in onions have been listed in detail above. These are all very important and essential nutrients for human health. Adding onions to your diet will bring you many health benefits such as:

  • Prevent and limit the growth of cancer cells
  • Good for bones and joints, prevents osteoporosis, increases bone density
  • Controls blood sugar levels, good for patients with diabetes diabetes
  • Increase the number of intestinal bacteria, improve digestive system health
  • Strengthen the body’s immune system

That’s all the uses of onions. So, what is taboo about onions? This is the important question that you need to know. Know how to prevent unexpected disasters from befalling yourself and those around you. Come find out with me.

What is taboo about onions? 5 foods “more toxic than arsenic” should stay away from?

Onions hate shrimp

List what is taboo about onions? The first thing that you cannot ignore is shrimp. Shrimp is a type of seafood known to contain a lot of nutritional value and is good for health that everyone can easily eat. Shrimp and onions are both very nutritious foods. But they should not be combined together, the reason is because:

  • Onions contain a lot of Oxalic Acid. Shrimp contains a lot of Calcium and Iodine. When onions are cooked with shrimp, Oxalic Acid will combine with Calcium and Iodine in shrimp to form a Calcium-Oxalate compound. If this substance accumulates in the body for a long time without being excreted, it will form kidney stones.


So, if you don’t want to experience severe cramps, you should not combine onions with shrimp.

Do not miss: What is taboo about seafood? 5 foods that should be avoided to avoid being “deadly”?

What is taboo about onions? Onions hate fish

Similar to shrimp, fish is also on the taboo list when eaten with onions. Onions and fish are both foods rich in protein and nutrients. But when combined together, they can cause a number of health problems, specifically:

  • Protein Precipitation: Onions contain some substances that can cause fish protein to precipitate, making it difficult for the body to absorb the protein
  • Increased risk of kidney stone formation: Onions contain a lot of Oxalic Acid, fish contain a lot of Calcium. When onions combine with fish, Calcium Oxalate is formed. Calcium Oxalate is a common type of kidney stone
  • Stomach irritation: Onions and fish can cause stomach irritation. Common symptoms that are easily encountered are bloating, heartburn, and indigestion


Onions are taboo toad meat

In terms of nutrition, toad meat contains a lot of beneficial nutritional values. The nutrition in toad meat is greater than that of pork, beef, and chicken. However, when processingToad meat along with onions is a big danger. Specifically:

  • Create toxins for the body: Onions are rich in organic sulfur compounds. Meanwhile, toad meat is a dish that provides a rich source of protein. Organic sulfur when combined with protein in toad meat will create an extremely toxic substance for the body. This toxin, when entering the body, will cause poisoning, diarrhea, vomiting, and potentially death
  • Causes difficulty in digestion: Onions and toad meat are both difficult to digest foods. When combined together, it can cause indigestion, bloating,…


If you accidentally cook toad meat with onions, to detoxify, you can use 50 grams of plantain to boil in water and drink.

What is taboo about onions? Onions hate seaweed

When eaten together, onions and seaweed, these two foods will create Calcium Oxalte, increasing the risk of kidney stone formation.

Onions contain a lot of Oxalic Acid. Meanwhile, seaweed is rich in Calcium and Iodine. When seaweed and onions are combined together, Oxalic Acid will react with Calcium to form Calcium Oxalate. This substance is a salt that is difficult to dissolve and easily precipitates in the urinary tract, causing kidney stones.


In addition, onions and seaweed can also cause indigestion and bloating if eaten together.

Onions hate honey

What is taboo? The last one that you should not ignore is honey. Honey is a popular ingredient used by many housewives in cooking, drinks and health care. It seems that the harmless culinary combination of honey and onions will bring a delicious dish. But no, this is a life-threatening combination.

  • Honey + onion combined together can create a substance that causes damage to the eye area. If eaten in large quantities and for a long time, the user may become blind.


Therefore, when cooking, do not combine honey with onions.

What is taboo about onions? 5 people who should not use onions to avoid danger?

Besides the foods that should not be eaten with onions, there are still some groups subjects are advised not to eat onions lest the condition become worse and worse. Detail:

People with red eyes

According to Oriental medicine, onions have a spicy taste and hot properties, and can cause internal heat and stimulate the body if eaten raw or in large doses. Especially with people with red eyes Your eyes will feel burning and uncomfortable, making eye pain worse.

In addition, onions also irritate the eyes, causing red eyes, itching, swelling and excessive tearing.

Instead of eating onions, people with pink eye should eat some of the following foods to quickly get rid of eye pain such as:

  • Vegetables and fruits contain lots of Vitamin A and C such as carrots, pumpkin, spinach, oranges, tangerines,…
  • Foods rich in omega-3 such as salmon, chia seeds,…
  • Foods rich in fiber such as green vegetables, fruits, whole grains,…
  • Add plenty of warm water to your body

What is taboo about onions? Onions are taboo for people with stomach pain

The next person who is advised not to eat onions is people with stomach pain. Caused by:

  • Onions have cold properties and can irritate the stomach, making people susceptible to stomach pain, bloating, flatulence, difficulty digesting, etc.
  • In addition, onions also secrete some substances that can increase stomach acid secretion, making stomach pain worse.

Therefore, people with stomach pain should limit the use of onions, or if they do use them, cook or stir-fry them until fully cooked.

People with weak physiology

According to traditional medicine, onions are cold and spicy, and can cause colds, diarrhea, etc. if eaten raw. These signs can cause people with erectile dysfunction feeling tired, reduced sexual desire.

In addition, onions also contain some substances that reduce male Testosterone, an important hormone in male physiology.

Therefore, people with weak physiology should not eat a lot of raw onions.

To have abundant and healthy physiological functions, men should eat:

  • Foods rich in protein such as chicken, beef, fish, eggs, milk,…
  • Foods containing lots of healthy fats such as olive oil, avocados, nuts,…
  • Exercise regularly, do not put stress on your body

What is taboo about onions? Onions are taboo for people with low blood pressure

Onions have cold properties, which can cause sudden drop in blood pressure. Sick people blood pressure Low blood pressure will have a very low blood pressure index, not stable compared to normal. Eating raw onions will cause blood pressure to drop to a very low level, leading to the following phenomena: dizziness, vertigo, fatigue, fainting,…

Instead of choosing to use onions, people with low blood pressure should use foods such as:

  • Rich in potassium like bananas, avocados, sweet potatoes,…
  • Rich in iron such as beef, chicken, fish, spinach,…
  • Rich in vitamin B1 such as eggs, milk, beans,…

Pregnant women suffer from congestion

What is taboo? Finally, husbands definitely need to know that it is pregnant women with congestion. Swelling during pregnancy is a phenomenon of increased fluid in the body, leading to swelling in the arms, legs, face, and sometimes the whole body. This congested condition will be easily seen in the last 3 months of pregnancy.

Onions have cold properties and can increase the amount of fluid in the body, causing swelling to become serious. In addition, onions also contain some substances that irritate the stomach, causing pregnant mothers to feel uncomfortable, bloated, have abdominal pain, runny nose, and more dangerously, anaphylactic shock.


Above is a detailed article that answers the question what is taboo about onions? but Dried agricultural products I have shared details with readers. In particular, this sharing article, housewives need to read to know how to properly combine onions to maintain the full nutritional value for themselves and those around them.

Hopefully, the above sharing will help everyone in processing onions properly, avoiding risks to their health. Wishing you success and many delicious dishes with onions!!!

Thank you for taking the time to read this article. Hello and see you again in the next posts!!!

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