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Popular foods that worsen the functioning of the immune system

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Kamal Saini
Kamal S. has been Journalist and Writer for Business, Hardware and Gadgets at Revyuh.com since 2018. He deals with B2b, Funding, Blockchain, Law, IT security, privacy, surveillance, digital self-defense and network policy. As part of his studies of political science, sociology and law, he researched the impact of technology on human coexistence. Email: kamal (at) revyuh (dot) com

Certain foods, depending on their properties, can be detrimental to the proper functioning of the immune system

The immune system is one of the essential structures of the body of any human being. By itself, it has the ability to perform its functions correctly, although there are certain factors that positively or negatively influence its performance.

The main mission of the immune system is to protect the body against bacteria, viruses, infections and diseases. In short, it acts as a protective system against any external agent that may pose a threat to health.

Although the immune system has an innate function in the body, its ability to function can be influenced by certain factors; such as the lifestyle habits of the person in question.

That is, food, alcohol intake, smoking, taking narcotic substances or doing physical exercise can directly influence the proper functioning of the immune system.

Foods that can worsen the action of the immune system

In this sense, we find a series of foods that can significantly impair the function of the immune system in the body. This is because these foods contain a series of properties that are not beneficial for this system, as well as for other relevant health aspects. Among the most harmful foods for the functioning of the immune system we find the following:

White bread

White bread, being made with refined flour, can be negative for the immune system.

It is an easy to digest food but with a high caloric intake and deficient in terms of micronutrients. Therefore, the intake of white bread in excess is related to weight gain, obesity, diabetes or the development of heart problems.

Sweets or cakes

Keep in mind that the processed sugars in sweets increase inflammation in the body. This phenomenon can favor the production of free radicals, molecules that cause damage to the body.

In this sense, excess free radicals are related to health problems such as diabetes, cancer, cardiovascular diseases or neurodegenerative pathologies.

Thus, a study conducted by ‘The American Journal of Clinical Nutrititon’ determined that the intake of 100 grams of sugar decreases the ability of immune cells to deal with bacteria.


Diets that include a high amount of salt also cause problems in the immune system. And it is that the excess of partner increases the activity of the kidneys to be able to get rid of this element.

Potato chips are high in saturated fat and do not provide essential micronutrients for health. That is, they are processed foods that provide more harm than good due to their properties.

The World Health Organization (WHO) recommends taking less than five grams of salt a day. Many nutritionists advise certain people, depending on their health status, to completely eliminate salt from their diet.

Processed oils

Finally, according to experts, processed oils, which are those that lose most of their nutrients and modify their molecular structure after going through a refining process. They are highly detrimental to the proper function of the immune system.

Foods fried in refined oils can cause a greater production of free radicals, which could be harmful to health and cause an increase in the vulnerability of the immune system against bacteria, viruses or infections.

Image Credit: iStock

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