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Most people consider good health their most coveted long-term goal. Still, many who want to meet that goal do not adhere to a healthy lifestyle.

Your body’s health reflects how you treat it. Better care enhances its ability to fight infections and combat diseases, which in turn keeps you in prime condition. To achieve better health, you must learn how to boost immune system naturally.

Your immune system is your body’s natural defence mechanism. It also keeps tabs on every virus and microbe it fights so it can respond if it detects them again.

The 5 Best Immune System Boosters

It can be challenging to pick a product with literally thousands of supplements on the market. Let’s run through the best immune system boosters and why they made out best of the best list.

1. Dr Fuhrman Immune Biotect (Editors Choice)

rejuvenates your immune system and helps your body fight against allergens, toxins, and pathogens.

This high-quality product was designed to provide immune-strengthening features in capsule form, with ingredients normally not found in your daily diet.

The combination of ingredients supports the normal function of immune cells and stimulates the body’s ability to resist bacteria and viruses.

best immune system booster


  • Delivers impressive benefits for everyone
  • 100% organic ingredients
  • No known side effects
  • Strengthens your resistance to infections


  • Results may take 2 to 4 weeks

We think that Dr. Fuhrman’s Immune Biotect is a top quality effective product. Made from high-quality organic ingredients, it’s 100% organic and vegan. It’s safe, it works and it will rejuvenate your immune system.

<Click Here For A More In-Depth Dr Fuhrman Immune Biotect Review>

2. Athletic Greens

Athletic Greens is a quality powdered supplement that you can take with your breakfast.

Made from 75 whole foods, minerals, vitamins, herbs, and probiotics, it helps you get the benefits of organic fruits, vegetables, and other beneficial ingredients in a convenient form that can be mixed into food or drinks.

These superfoods support energy production, energy storage, digestion, gut health, and your immune system.

Many athletes take Athletic Greens to help them gain energy, improve immunity, boost digestion, and help recover from sports-related injuries. As you age the Athletic Greens will help bring out the inner athlete in you.


  • Boost your energy
  • Helps to keep you full
  • Improved digestion and gut health
  • Compatible with vegan & gluten-free diets


  • Unpleasant flavor for some

Athletic Greens is a convenient way to get the nutritional benefits of 75 whole foods, minerals, and herbs without having to prepare and cook so many different superfoods. Better digestion, more energy, and a real boost to your immune system immune system.

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<Click Here For A More In-Depth Athletic Greens Review>

3. Life Extension Florassist Winter Immune Support

FLORASSIST supports and strengthens your immune system during the winter season. It also helps strengthen your immune system cells so you can fight unwanted bugs in your body more quickly.

The formula is a scientific blend of five probiotic strains mixed with a special prebiotic to prevent primary immune disorders and support good health.

The supplement is extensively lab tested and an excellent way of boosting your immune system to fight
of colds, flu and infections.


  • Clinically and scientifically proven formula
  • Gluten free
  • Can be mixed with food
  • Comes in convenient stick packs


  • Side Effects may include mild gas & bloating

<Click Here For A More In-Depth Florassist Winter Support Review>

4. Quantum Immune Support

QN Labs uses the popular (and ancient) Ayurvedic grading system for rating herbal quality.. However, it is still used by laboratories and cosmetics manufacturers to identify the quality of each herb they want to include in their formula.

Quantum Nutrition Labs is the only company in the US with Grade 10 for including non-toxic and natural ingredients in their products. The Quantum Immune Support product is also free of wheat, sugar, milk, soy, and preservatives.

The QN Labs team performed many clinical trials until they perfected the liquid extract formula. Using this product, you can avoid colds and flu and make your body stronger and resistant to viruses. It is loaded with antioxidants that stimulate the production of important proteins and immune-supporting mechanisms.


  • Organic, vegan friendly
  • 100% safe for anyone to use
  • Can be purchased worldwide
  • Loaded with antioxidants


  • Benefits may take time

It is safe to say that this product has it all – immune-boosting, anti-inflammatory, and antioxidant properties. It will not only boost your immune system but also work to prevent future illnesses and diseases.

<Click Here For A More In-Depth Quantum Immune Support Review>

5. Rootine Personalised Daily Vitamin

What makes Rootine different is that it’s completely customized for you. Using a lifestyle questionnaire, DNA testing, and an optional blood test, Rootine figures out what your daily vitamin requirements are. It’s a smart way of hacking supplementation.

The questionnaire highlights special needs dependent on your lifestyle. Someone working behind a desk all day might require more B vitamins than someone who’s retired, for example. Everyone’s lifestyle is unique, so it’s essential to make this differentiation.


  • Unique to the individual
  • Targets your needs & lifestyle
  • Starts to work almost immediately
  • Slow release formulation


  • The initial test results take 3 to 5 weeks

The initial cost is high, however with this solution, you know what nutrients your body needs. The Rootine Personalized Daily Vitamin takes the guesswork out of how to achieve wellness.

<Click Here For A More In-Depth Rootine Personalised Daily Vitamin Review>

What Weakens Your Immune System?

The state of your immune system directly relates to your physical and mental health. White blood cells (WBCs), also called leukocytes, make up one of the main components of the immune system.

WBCs branch into two categories: lymphocytes and phagocytes. Lymphocytes include T-cells, which eliminate infected and abnormal cells, and B-cells that produce antibodies and identify infected and abnormal cells. Phagocytes absorb harmful cells, microbes, and viruses to break them down into inert matter.

Learning how to boost the immune system naturally requires an understanding of what weakens it.

Complications Of The Digestive Tract

Microbial life thrives in the digestive tract. These microscopic organisms prove as essential for proper digestion as for strong immunity.

Disrupting normal levels of gut flora can indicate a compromised immune system. In a well-documented scientific study, researchers examined Bacteroides fragilis and its relationship with immunoglobulin A (IgA).

This bacterium alleviates symptoms of colitis, sclerosis, and several other digestive diseases. It uses the IgA antibody for penetrating the mucosal lining of the gut to form permanent colonies. Disruption in IgA would cause the bacterial colonies to diminish, causing digestive issues and signaling a weakened immune system.

Autoimmune Diseases

Autoimmune diseases mean that your body cannot distinguish between healthy and unhealthy cells. Instead of targeting specific microbes, viruses, foreign pathogens, and abnormal cells, it attacks healthy cells.

The autoimmune response can severely damage the immune system if left untreated. This damage can leave the body completely defenseless against microbial infections. Some common examples of autoimmune diseases include:

  • Rheumatoid arthritis
  • Inflammatory bowel disease
  • Psoriasis
  • Multiple sclerosis

Chronic Stress

Stress triggers a fight-or-flight response within the body, enabling it to function more efficiently and push past its limits. However, this response should only activate for a short duration and requires rest to restore normalcy.

Chronic stress causes the overproduction of stress hormones and forces the body beyond its physical and psychological boundaries for long periods. Under these circumstances, the body starts breaking down and affects your immune system. Your body becomes susceptible to infections and viral outbreaks, as natural immunity cannot handle foreign contaminants.

Fatigue And Lethargy

The immune system requires ample rest and nutrition for peak efficiency. Overwork, fatigue, or choosing a lethargic lifestyle increases stress. Under these circumstances, the immune system loses its effectiveness and is unable to fight infections and viruses properly.

Imbalanced Nutrition

A balanced diet comprised of all the macro and micronutrients creates a healthy immune system. Fighting infections, producing new WBCs, and maintaining the immune system require nutrients.

Without a balanced diet, the immune system has no fuel. It consequently begins breaking down and is unable to function well.

Signs Your Immune System Is Weak

As you age, you become more susceptible to colds and flu and viruses of all kinds including corona viruses so you must take care of your immune system. Identifying a weak immune system can help with diagnosis and treatment of illnesses and disease. When you see the following common symptoms, they may signal a weak immune system.

Recurring Flu And Infection

Your immune system can take anywhere from four to seven days to recover from fighting an infection. Contrary to popular belief, continuous exposure to harmful bacteria and viruses does not increase immunity but compromises it. With a weak immune system, your body continually battles recurring flu and infections as it cannot resist its onset.

Irregular Gut Flora

The concentration of gut flora shows your immune system’s health. Not only do gut flora contribute to good health, but they also secrete antibodies.

According to recent studies, 70% of the immune system is connected to or present in the digestive tract. Abnormal concentrations of gut bacteria often signal that something is wrong with the immune system.

Disruptive Sleep Pattern

The immune system needs ample sleep each night to recover after fighting invasive microbes. It will begin demanding more sleep, which presents as drowsiness at irregular hours. Read our guide to getting a good nigh's sleep

Blood-Related Disorders

Blood-related disorders commonly signal weak immunity. Low platelet, red blood cell (RBC), and blood plasma levels can be interpreted as signs to go to the doctor.

What Is The Difference Between Innate And Adaptive Immunity?

We can divide immunity into two distinct subcategories: innate and adaptive.

Innate Immunity

Innate immunity is the baseline immunity inherited by all human infants at birth. Parents pass this type of immunity to their children through a genetic code, and it can evolve slowly over generations.

Adaptive Immunity

If the body encounters and defeats an unknown microbial threat, it develops resistance against it. This reactive response is called adaptive or acquired immunity and continues building throughout your life. For example, COVID patients have developed resistance against the illness, and their donated blood plasma is being used to treat other patients.

What Can You Do To Boost Your Immune System?

While your cells fight the invading microbes, you can help strengthen it with these simple yet effective tips:


If you are learning how to boost immune system naturally, supplements are an excellent place to start. Supplements provide an immediate boost of desired nutrients to fight infections.

You can integrate these supplements into your daily diet to boost your immunity:

  • Vitamin D: Fat-soluble vitamin that reduces inflammation and enhances the immune system’s threat identification
  • Selenium: Fights cellular oxidative stress
  • Vitamin B6: Important for the production of lymphocyte cells
  • Zinc: Required for normal levels of T-cells

Get Enough Sleep

On average, the human body requires eight hours of sleep for optimal health. However, the quality of sleep matters, too.

During sleep, the body switches to basal metabolism and focuses on healing and refreshing itself. During the rapid eye movement (REM) sleep cycle, your body performs these activities at its peak.

Sleep in a dark and quiet place to ensure uninterrupted sleep. Don’t eat heavy meals before going to sleep, as they stress digestion, which can lead to prematurely waking up.

Consume Healthy Fats

Omega-3 fatty acids are vital components of signal molecules that reduce cellular inflammation. They lower cellular stress signals, enabling the immune system to return to normal after fighting infection. Higher Omega-6 fatty acids, on the other hand, can needlessly stress the cells by raising stress signals.


The lymphatic system extends throughout the body as interconnected vessels and lymphoid tissues and organs. It performs numerous activities, from cellular waste disposal to maintaining fluid levels. However, it lacks a pumping mechanism. Recent studies have shown that laughter keeps these vessels pumping. Laughter achieves the perfect diaphragm movement to pump the lymphatic fluid and promote the release of endorphins that counter stress, giving your immune system a break.


With the COVID pandemic, you must keep your immunity in top form. Probiotics are microbes that benefit the body. They help cells fight harmful bacteria by boosting the activity of harmful cells. Fermented products such as yogurt, sauerkraut, kefir, and tempeh contain plenty of probiotics.

Cannabidiol Oil And Immunity

The interest in the medicinal properties of cannabis has shown cannabidiol (CBD) oil to aid immunity. You may find it surprising that CBD suppresses your immune response but still counts toward helping immunity.

Consider the applications to treat autoimmune diseases. It has strong anti-inflammatory properties that reduce symptoms of diseases such as celiac disease. It also suppresses cytokines and chemokines, which help white blood cells identify and attack microbes. With autoimmune diseases, CBD oil can assist in calming the immune system during severe autoimmune attacks.

Immune System And Age

The human body’s immunity naturally decreases with the progression of age. Bacterial infections take more time to recover as immunity weakens. The immune system takes more time to recharge, and the production of antibodies slows down, which delays their response to infection.

While these effects are natural, you can still boost immunity as you age. You can start by refraining from bad habits like drinking alcohol and smoking.

Smoking introduces carcinogenic substances into the body that compromise immunity and cause cancer. Alcohol abuse adversely affects gut bacteria and immune response, which triggers inflammation and delays healing.

Physical activity helps you maintain your health and prolong your life more than anything else. It promotes the production of antibodies, T-cells, and endorphins, thus reducing stress and boosting immunity.

Age also weakens your digestive system. To keep your immune system primed, consume a balanced diet that includes macronutrients like proteins, fats, and carbs; micronutrients like vitamins and minerals; and fiber.

Fiber keeps gut bacteria healthy and promotes the peristaltic movement that moves food through the digestive tract. This movement keeps the gut in optimal condition for good bacteria to thrive.

Diet And Immunity

Proper nutrition keeps your body at peak performance. The following foods work exceptionally well to boost immunity and help fight bad bacteria.


Mushrooms are more than a pizza topping. They work as incredible boosters for immunity, and different mushrooms offer their own benefits to your body:

  • Shiitake: Lowers LDL cholesterol that causes the production of signal molecules for cellular stress
  • Reishi: Alleviates symptoms of inflammation and autoimmune response
  • Turkey Tail: Contains polysaccharide-K that boosts immune system capabilities
  • Lion’s Mane: High antioxidant count and promotes myelin and nerve growth factor to protect against multiple sclerosis, anxiety attacks, and brain disorders

Black Elderberries

Black elderberries contain antibacterial compounds that enhance immunity. Their use as supplements reduces the time required by the immune system to fight microbial infections.


Found in small quantities in ginger, curcumin has strong anti-inflammatory effects and activates killer cells. The T-cells and B-cells fight against pathogens and abnormal cells to keep the body healthy.

Fermented Food

Fermentation is the process by which microorganisms are introduced into food. These microorganisms feed on carbs, proteins, and fats to produce acids and alcohols that help preserve food. Foods like yogurt, cheese, kimchi, sauerkraut, and sourdough are excellent examples of fermented food.

Their probiotic bacteria provide a massive boost to immunity. They promote gut flora and release antibodies essential for combating microbial and viral infections.

Citrus Fruits

Citrus fruits contain high amounts of Vitamin C, which works wonders for immunity. It functions as an antioxidant, which fights free radicals and reduces cellular oxidative stress.

Consuming 65-90 grams of Vitamin C increases the antioxidant count in your blood by up to 30%. It also stimulates vasodilation to counter high blood pressure and inflammation.

Clinical studies have proven its effectiveness in lowering uric acid levels, which counters gout. High uric acid levels also hinder the immune response of T-cells and B-cells.


Garlic has become an integral part of international cuisine, which helps boost global immunity. Its high sulfur content, especially allicin, has been documented to stimulate WBC activity.

Keep in mind that microwaving garlic for 45-60 seconds alters its makeup and renders most of its benefits useless.


As much a culinary staple as a medicinal one, ginger has long been known for its immunity-boosting effects. Ancient Chinese scriptures often cite this root when discussing how to boost the immune system naturally. Its phenolic compounds work against inflammation, making it especially useful in treating autoimmune disorders.

Green Tea

Aromatic and delicious, green tea is a universal favorite for its many benefits. It contains numerous flavonoids, which function similarly to antioxidants.


Poultry contains Vitamin B-complex, especially B12, which you can only find in meat. This vitamin provides the immune system proteins necessary for producing new cells, maintaining existing cells, and supporting general growth and repair.

Best Immune System Boosters: Conclusion

Your body’s immunity directly relates to how well you care for it. We will be living with viruses like the corona viruses and other as yet unknown challenges so it's absolutely vital you keep your body in top shape to avoid illness.

Your body requires ample nutrients combined with physical and psychological rest to fight viral, bacterial, and microbial infections. With these tips and guidelines, you can learn how to boost your immune system naturally without any adverse effects.

best immune system booster

Dr Fuhrman Immune Biotect

Our #1 Recommendation

  • Enhances brain performance
  •  Improved focus and memory
  •  Increased productivity
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Rosemary Richards