How To Strengthen Your Immune System To Prevent The Flu Naturally

How to strengthen your immune system
How to boost your immune system

If you want to support the body’s defenses and prevent the flu naturally, you must know how to strengthen your immune system and keep it in optimal shape.

Nowadays you should know how to strengthen your immune system because it protects you not only from bacteria and viruses, but from cellular changes leading to premature aging and cancer.

Doctors Distinguish Two Types of Immune System

Cellular immunity (described here) consists of T-cells (belonging to the group of white blood cells). It protects us from viruses and microbes, radiation, stress and allergic reactions.

How to boost immune system naturally
How does the immune system work

Humoral immunity (described here) includes blood, lymph and the complement system (it complements antibodies, it is known as the innate immune system). This part cleanses the body of toxins, nourishes it with nutrients, supplies it with “healthy” clean blood. It is also responsible for the formation of antibodies connected to the so-called B cells formed in bone marrow and stem cells.

How Does The Immune System Work?

Antibodies are immunoglobulin proteins. The following immunoglobulins have been found so far: IgM, IgG, IgA, IgD and IgE. The most numerous, the most universal and well-studied are the classes of immunoglobulins A and G. They neutralize 99% of infectious pathogens and toxins that enter our body.

On the one hand, we get specific immunity by inheritance – through our parents’ genes. On the other hand, we create a non-specific immune system, because viruses constantly mutate and our body has to adapt to protect itself from a new danger.

So, in order to create reliable immunity, we need to supply the body with appropriate “building material” in the form of food.

According to doctors, this is especially necessary today, when as much as we try to live healthy, it is difficult to avoid the traps of processed foods, genetically modified foods, food preservatives and food dyes.

What Are The Signs Of A Weakened Immune System?

Among the most common signs that the immune system is not working well are chronic fatigue, drowsiness or insomnia, headaches, muscle and joint pain. The next stage is chronic illness or long-term – as soon as you recover, you immediately get ill from something else.

Oral herpes means that something is wrong and you need to take immediate action. The last stage is a whole set of chronic diseases and more complications.

There are a number of medical studies that indicate that a sharp decrease in immunity most often occurs with stress and heavy workloads. Therefore, in the risk group fall people with stressful professions – astronauts, pilots, businessmen, professional athletes, etc.

What weakens the immune system
Signs of a weakened immune system

Doctors note that immunity is also impaired in during surgical operations. Babies are also at risk, so breastfeeding and prevention of dysbiosis are especially important between 6 and 12 months.

People who regularly do not get enough sleep or have low physical activity are also at risk.

What Weakens The Immune System?

Polluted Environment

Water, air or radiation.

Bad Food

Low-quality, artificial, contaminated, pickled food containing preservatives, stabilizers, dyes, etc. Products with a high sugar content, as well as acidic and carbonated beverages (drinks) weaken the immune system.

Bad food for immunity
Foods to avoid

In women, a serious blow to the immune system is caused by starvation and bad diets. Both overweight and underweight are harmful – so it is not good to starve neither to overeat.

Deficiency of Vitamins and Trace Elements

  • In fact, Vitamin A deficiency weakens the body’s immune response against the penetration of foreign proteins.
  • Vitamin B stimulates immune activity and periods of physical stress.
  • The most popular Vitamin C deficiency reduces the rate of antibody production to fight infections.


Recent research by German doctors shows that any antibiotic, even if it is used for its intended purpose, weakens the immune system by 50-75%. In addition to the fact that you should never self-medicate, it is also important to monitor the origin of the meat that you consume. Meat industry often gives chickens antibiotics to stimulate their growth and protect them from diseases.

How To Have Strong Immune System?

Most important for the immune system are vitamins A, B5, C, D, E, PP. In fact every plant food, especially colored yellow and red (carrot, red pepper, watermelon, tomato, pumpkin) contains beta-carotene, which in the body is converted to vitamin A.

Best immune system vitamins
Natural vitamins

These substances are responsible for the strength of the immune response and are able to protect us from cancer to a certain extent. Vitamin C guarantees the production of immune cells and its deficiency reduces the rate of antibody production. You can find it in the largest quantities in blueberries, rose hips, citrus fruits, parsley, sauerkraut.

Vitamins of the Group B stimulate the functions of the immune system under stress, after surgery or trauma. You can find it in whole seeds, wheat flour, nuts, buckwheat, beans, sprouted seeds, mushrooms and cheese.

Vitamin E is an antioxidant that protects cells from aging. The main source of vitamin E can be found in crude and refined vegetable oils.

The most important minerals to strengthen your immune system are selenium, zinc, magnesium, calcium, iron, iodine and manganese. The leaders in mineral content are nuts, legumes, seeds, spirulina, whole grains, cocoa, dark chocolate.

Fresh Spirulina

What is Spirulina?
Fresh Spirulina

Blue-green algae have a history of millions of years and has been recognized as a superfood from ancient civilizations. Spirulina is naturally rich in protein, vitamins, unique antioxidants, minerals and contains all eight essential amino acids that can only be supplied through food.

Spirulina (learn more) has been shown to improve the protection of the body from various viruses, reduces the risk of cardiovascular problems, lowers the levels of bad cholesterol in the blood and has antioxidant and anti-inflammatory properties.

There are about 15 different types of spirulina, but most commonly you’ll find it on the market as tablets or powder.

What Are The Best Immune System Boosting Foods?

Complete Proteins

  • Meat
  • Fish
  • Legumes

It is good to eat meat twice a week, there are no restrictions on fish. Beans, peas and lentils consume 1-2 times a week.

Fruits and vegetables

If you want to keep your immune system in great shape, consume at least three of the excellent immune system boosting foods.

You can eat anytime carrots, beets, cabbage, beans, turnips, red pepper, pomegranate, raisins, dried plums, chokeberry, apricots, apples, red grapes, blueberries, nuts, horseradish, garlic, onions, red wine, tomatoes.


The unsaturated fatty acids contained in fish and seafood greatly increase the body’s defenses. But keep in mind that prolonged heat treatment destroys the useful substances in them. Doctors mostly recommend squid and algae.

Benefits of eating fish everyday
Seafood and healthy eating

Products Containing Potassium

Most of this mineral you can find in potatoes roasted with skin (without peeling), dried apricots, nuts, buckwheat and oats.

Immune System Boosting Foods Rich in Zinc

This is one of the most powerful stimulators of the immune system and can suppress its functions. The mineral helps spread white blood cells and other antibodies, which makes them better prepared to resist infections.

In addition, zinc prevents the development of bacteria and viruses in the body by stimulating the immune response at the site of infection. Crabs, oysters, beans, beef and turkey are rich in zinc. But be careful not to overdo it, as too high levels of zinc can be toxic.

Dairy Products

Especially recommended are those with live bacteria. They contain interferons (which play an important role in the body’s immune response to foreign pathogens – particularly viruses and cancer cells) and methionine (a powerful antioxidant that improves digestion and reduces the risk of developing pancreatic cancer).

Green Tea

Green tea benefits for health
Drinking green tea benefits

The best way to remove toxins from the body.

What are the benefits drinking green tea, check here:

Quail Eggs

They are one of the best ways to strengthen your immune system. They contain five times more phosphorus, potassium and iron than regular eggs. Some doctors recommend giving children one quail egg every day for 2 to 3 months to improve the body’s resistance.

In addition to immunity boosting, they tone up fatigue, treat headaches, improve digestive system activity.

For more information how to strengthen your immune system, read also these articles covering the topic:

Useful Tips If You Want To Strengthen Your Immune System

Include in your weekly menu as often as possible broccoli, carrots, dairy products, strawberries, kiwi, salmon, pine nuts, olive oil, turkey meat, citrus fruits.

Consume as many vegetables as possible. Add to your meals parsley, dill, celery (leaves and roots). The effect of the constant use of zucchini and pumpkin is remarkable.

Best foods to boost immunity
Eat vegetables for strong immune system


Doctors recommend eating more immune system boosting foods that increase the number of beneficial bacteria in the body. Among the most famous probiotics products are  – onions, leeks, garlic, apples, bananas.

Gifts From Nature

There are natural remedies (herbs) that boost your immunity: echinacea, ginseng, lemongrass, cat’s claw (uncaria tomentosa), aloe vera.

Dont’ Miss: Best Herbs For Boosting Your Immunity


Did you know that one of the most common causes of colds and infectious diseases is insufficient consumption of regular drinking water? The reason is that with a reduced amount of water in the body, it is difficult for the kidneys to function normally and part of their work is taken over by the liver.

Drinking water relieves the kidneys and liver, which in turn controls the functions of the immune system. Lack of moisture can also have an effect on the mucous membrane of the nasopharynx, which is the first natural barrier to infection.

Antibiotic Foods

There are immune system boosting foods that have the ability to kill germs directly, without the involvement of the immune system.

Raspberries, French grapes, apples, blueberries, pears, pomegranate, plums, horseradish, turnips, onions, garlic, beets, cabbage, carrots, celery, peppers – they are all wonderful natural antibiotics which will help you answer the question of how to strengthen your immune system.

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