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Boosting the immune system with natural products – the best natural substances

The immune system is constantly fighting infections caused by various bacteria, viruses and fungi. During the coronavirus epidemic, everyone learned to appreciate the importance of the immune system, as the virus causes more severe complications in people with a weak immune system. In this article, we will introduce you to the best natural substances and natural products to boost your immune system.

Table of Contents

What is the immune system and what exactly it does?

The immune system is a very complex organ system that protects the body against infections. Many different cells, tissues, bacteria and organs are involved in the defence. In a healthy body, the immune system is able to recognise and eliminate pathogens, substances that the body doesn’t need, and even cancer cells. The invaders can be many and varied, not only bacteria and viruses, but also multicellular organisms such as fungi or even nematodes.

The human body is under constant attack from pathogens, so boosting the immune system with natural products and with natural substances is a task that is literally a matter of life and death for everyone.

Orange, grapefruit

Oranges and grapefruits are not only delicious fruits, but thanks to their extremely high vitamin C content, they are also excellent for boosting the immune system. Unfortunately, people today don’t consume nearly enough vitamin C. But if you want to boost your immune system with natural products, there is no better way than to provide your body with plenty of vitamin C.


Vitamin C is a very powerful antioxidant that prevents inflammation in the body, and some research suggests that it can even reduce the risk of cancer. However, it is important to know that there is no scientific evidence that vitamin C alone can help cure cancer.

Eating one average-sized grapefruit or one larger orange per day provides 100 % of the recommended daily dose of vitamin C. However, it is important to remember that the “recommended daily dose” means that this amount is absolutely necessary for a healthy body, not that it is needed. So it’s worth consuming more if you can. Vitamin C is water soluble, so overdosing is almost impossible. An average vitamin C product contains many times the recommended daily dose, so it’s okay to eat more oranges.


Broccoli, like citrus fruits, is rich in vitamin C. Just 100 g of broccoli contains one and a half times the recommended daily dose. As if that were not enough, broccoli is also an excellent source of dietary fibre. Although the intake of dietary fibre does not directly boost the immune system, it is still very important for the body, as dietary fibre aids digestion. Since a significant part of the human immune system is located in the gut, the health of the intestinal tract is especially important.


Broccoli also contains B vitamins, iron and magnesium, all of which naturally support the immune system in fighting infections.

Fulvic acid as a natural product for boosting the immune system

Fulvic acid is the name for a family of vital molecules that are produced when living matter decomposes. Without fulvic acid, there would be no life on earth, because it provides nutrients for the cells of all living things, from plants to animals to humans.

Preparations containing fulvic acid have been used in Tibetan medicine for thousands of years and are considered one of the best rejuvenators. Thanks to modern science, we now know why. Fulvic acid is an extremely powerful antioxidant and thus naturally boosts the immune system.

Fulvic acid is best taken in its natural form. There are several food supplements for this purpose, of which Fulvicherb is very effective. It contains fulvic acid in its natural form, supplemented by other natural substances such as herbal extracts, arginine, pectins and inulin. Thanks to these additional ingredients, the effect of fulvic acid can be further enhanced.


It is no wonder that turmeric is becoming increasingly popular with food supplement manufacturers. It has been known for decades that turmeric activates the various immune defence cells that are responsible for protecting the body. In addition, turmeric has a strong anti-inflammatory effect. And a study from 2007 suggests that turmeric may also have a positive effect on a number of diseases from which millions of people suffer: Arthritis, allergies, asthma, arteriosclerosis, heart disease, Alzheimer’s disease and diabetes.

So it’s worth eating turmeric foods on a weekly basis. One of the most popular and tasty is curry, in which turmeric is one of the main ingredients.


Beetroot is on our list because it contains a very powerful antioxidant, betalain. Betalain is a pigment, which is why beetroot has a reddish colour. More important than the attractive colour, however, is the compound’s anti-inflammatory effect. The immune system is weaker when the body is inflamed. Therefore, it is a good idea to eat lots of natural, anti-inflammatory foods.


Spinach is a really valuable source of nutrients, and not only when it comes to boosting the immune system with natural products. It contains many different vitamins and trace elements that are important for a healthy immune system. The most important of these is vitamin C, which has already been discussed in detail. Just 200 g of spinach cover an adult’s daily requirement of vitamin C. But that is not all. Spinach contains a lot of magnesium, iron, vitamin B6 and potassium, which are necessary for the normal functioning of the immune system.



Eating ginger is considered healthy. The tea made from the plant has an antipyretic and cough-relieving effect, which is why it is often used as a natural substance against colds and flu.


Ginger is rich in antioxidants and has a strong anti-inflammatory effect, so eating ginger is a natural way of boosting the immune system not only when you are ill, but also in general.

Fruits of the sea

Seafood is so important for boosting the immune system because it contains a lot of zinc in its natural form. And zinc is one of the most important trace elements for the proper functioning of the immune system.

Zinc contributes to the immune system through complex, intricate biological processes. For example, it is required for the function of more than 300 enzymes, for the maintenance of cellular heredity and for other vital cellular functions.

If you do not have enough zinc in your body, your body cannot produce enough white blood cells to defend itself and your immune system is weakened. The right amount depends on your age, the condition of your body and the type of food you eat. People who are ill, pregnant or on a vegetarian diet should take more zinc.


Ashwagandha (Scientific name: Withania somnifera), also called winter cherry, is a medicinal plant native to Asia and Africa. It has been used in traditional Ayurvedic medicine for thousands of years. It is said to have rejuvenating effects, promote fertility and help maintain health.

Some of its effects have now been scientifically proven. These include boosting mental and athletic performance, reducing fatigue and stress, increasing fertility and testosterone levels in men, and supporting the thyroid gland. And experience shows that it also has natural anti-inflammatory and immune-boosting effects.

Green tea

Green tea contains an extremely powerful natural antioxidant called EGCC (epigallocatechin), a compound that not only boosts the immune system (regular consumption increases the number of T-cells) but also helps to protect cells from damage, shed excess pounds and lower blood sugar levels.

Green tea

Read the article in German: Immunsystem stärken mit Naturprodukten – die besten natürlichen Stoffe

Read the article in Polish: Wzmocnienie systemu odpornościowego za pomocą produktów naturalnych – najlepsze substancje naturalne


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