5 Immune System Boosters to Try (2024)

Interested in building your body’s defenses against germs and sickness? Focusing on a few key areas will better your chances of staying healthy. Andrea Hansen, PA-C, UnityPoint Health, lists easy immune system boosters you can begin practicing today, as well as the ways you’re actually weakening your immune system.

Top Immune System Boosters

Your immune system is a process of checks and balances that helps fight and protect the body from disease and illness. It’s possible to naturally boost your immune system – and easier than you probably think. Here are Hansen’s top five ways to jump start your immunity:

  • Eating a well-balanced diet. Foods can certainly boost the immune system. Specifically, try to eat a variety of fruits, vegetables, whole grains, dairy products and lean protein. Also, fit in foods with omega-3 fatty acids, like eggs, salmon and avocados, as well. All these foods will not only build up parts of your immune system, but can help you maintain a healthy weight.
  • Drinking plenty of water. Water intake can have many positive benefits for your immune system, including but not limited to aiding in digestion and preventing possible pathogens like a virus or bacteria from getting into the eyes, nose and mouth. Staying hydrated helps all the body’s defenses function properly.
  • Prioritizing exercise. Moderate-intensity exercise can help maintain a healthy immune system. But, exercise that’s too intense, especially if you’re already feeling under the weather, can have the opposite effect and lower immunity.
  • Getting enough sleep. If you get enough sleep, it will help your body fight off sickness and help succeed at the tips mentioned above. Adults should get between 7-9 hours of sleep each night.
  • Increasing vitamin intake. Vitamins B6, C and E are all known for their immune-boosting properties. You can get all of these vitamins from a well-balanced diet, so you don’t need supplements. Some foods rich in these vitamins include eggs, bell peppers, spinach and almonds.

Immune System Supplements

Many products claim to give your immune system the boost it needs to keep you running at your best. But, Hansen says approach immune system supplements with caution.

“Vitamins B6, C and E have been shown to help boost your immune system,” Hansen says. “If you are lacking some of these vitamins, a supplement could help support your immune system. But, your body can only absorb so much of any vitamin in a given day. So, if you are taking too many of these vitamins, you’re going to get rid of the extra in your urine. Supplements can cause side effects as well.”

If you’re considering taking extra vitamins to help your immune system, Hansen recommends checking with your provider before buying any supplement, as these can interfere with your regular medications.

What Weakens Your Immune System

On the other hand, there are habits you might have that Hansen says weaken your immune system, rather than boosting it.

  • Poor diet, including too much sugar intake
  • Smoking
  • Excessive alcohol use
  • Not getting enough sleep
  • Dehydration
  • Not maintaining regular exercise
  • Obesity
  • Stress
  • No good support system
  • Taking too many antibiotics

She also adds that certain groups are more vulnerable to their immune systems being compromised.

“Infants, the elderly, anyone on immunosuppressive therapy, such as cancer or transplant patients, and those with chronic medical conditions, like diabetes, COPD and obesity, are at risk for their immune systems not functioning at top levels. If you’re someone with a weakened immune, anytime you’re expose to more germs, stress, etc., would be the time of year you’re more likely to get sick.”

Unfortunately, cold and flu season is an especially tough time to keep your immune system going strong. Hansen says to focus on what you can control to keep you and your family healthy.

“This is hard because children go to daycare, school and sporting events, and we go to work where we’re exposed to multiple people and possible germs daily. Do your best to limit your child’s exposure, and if someone in your house is sick, do your best to limit your exposure to others, too. The best advice I can give is to keep washing your hands often, covering your coughs and sneezes in your elbow, drinking plenty of water and eating a good diet, plus rest, rest, rest,” Hansen says.

5 Immune System Boosters to Try (2024)

FAQs

5 Immune System Boosters to Try? ›

Vitamins B6, C and E are all known for their immune-boosting properties. You can get all of these vitamins from a well-balanced diet, so you don't need supplements. Some foods rich in these vitamins include eggs, bell peppers, spinach and almonds.

What is the strongest immune system booster? ›

Vitamins B6, C and E are all known for their immune-boosting properties. You can get all of these vitamins from a well-balanced diet, so you don't need supplements. Some foods rich in these vitamins include eggs, bell peppers, spinach and almonds.

What actually boosts the immune system? ›

“A lifestyle that includes eating healthy foods, physical activity, reducing stress, and getting enough sleep is known to keep your immune system in the best shape,” adds Milner, who is a leader in the discovery of rare immune deficiency disorders of children.

What will boost my immune system fast? ›

Regularly eating a variety of nutritious foods rich in vitamins and minerals, such as citrus fruits, spinach, red peppers, and ginger may help boost your immune system.

What is the number one vitamin for immune system? ›

The most common vitamins that may help prevent illness are vitamins A, C, E, and D. Vitamins A and E support your immune system in a few different ways. Your body needs vitamin A for the normal function of immune cells, and it also acts as an antioxidant.

What vitamin is best for the immune system? ›

Consuming adequate amounts of several vitamins and minerals—including vitamin A, vitamin C, vitamin D, vitamin E, selenium, and zinc—is important for proper immune function, and clinical deficiencies of these nutrients weaken immunity and can increase susceptibility to infections [2,4,5,8-10].

What drink helps white blood cells? ›

Green tea

Green tea is also rich in L-theanine, an amino acid that is thought to help your white blood cells produce germ-fighting compounds.

What foods fight infection in the body? ›

Consuming foods high in vitamin C such as grapefruits, oranges, tangerines, sweet red pepper, broccoli, strawberries, kale, and kiwifruit are thought to increase white blood cell production, which is key to fighting infection.

How can I boost my immune system in 24 hours? ›

Top 7 Tips to Boost Your Immune System In 24 Hours...
  1. Hydrate! Our need for hydration increases when we're fighting infections, so you'll need to double down on water and comforting cups of herbal tea (Guide to Herbal Tea). ...
  2. Drink Bone Broth. ...
  3. Up your vitamin C. ...
  4. Step outside. ...
  5. Stock up on zinc. ...
  6. Rest up. ...
  7. Fermented foods.
Oct 9, 2023

Which tea boosts the immune system? ›

A number of studies have shown that certain teas, such as green tea, can boost your immune system, fight off inflammation, promote cardiovascular health, and even prevent the development of certain cancers. These health benefits are associated with specific antioxidants found in tea, known as polyphenols.

Which fruits boost immunity? ›

Which foods boost the immune system?
  • Blueberries. Share on Pinterest Blueberries have antioxidant properties that may boost the immune system. ...
  • Dark chocolate. ...
  • Turmeric. ...
  • Oily fish. ...
  • Broccoli. ...
  • Sweet potatoes. ...
  • Spinach. ...
  • Ginger.

What weakens the immune system? ›

It can also happen to people following organ transplants who take medicine to prevent organ rejection. Also, infections like the flu virus, mono (mononucleosis), and measles can weaken the immune system for a brief time. Your immune system can also be weakened by smoking, alcohol, and poor nutrition.

What are signs that your immune system is fighting a virus? ›

Signs Your Body Is Fighting a Cold
  • Body aches.
  • Congestion.
  • Cough.
  • Decreased appetite.
  • Fatigue.
  • Feeling rundown or unwell.
  • Mild headache.
  • Low-grade fever (99 F to 100.3 F)
Jul 24, 2023

Which fruits increase white blood cells? ›

Vegetables and fruits high in beta-carotene are carrots, pumpkin, squash, sweet potatoes, apricots, and mangoes. This fruit has the ability to increase the production of white blood cells or lymphocytes in the body because it is loaded with vitamin A and Vitamin C.

Do any immune supplements actually work? ›

The bottom line is that aside from vaccines, there's really nothing you can take to improve your immune system, so it's probably best to avoid pills and potions that make those types of claims.

How long does it take to rebuild the immune system? ›

However, building a strong immune system doesn't happen overnight. In fact, strengthening your immune system can take weeks, according to Tulip Jhaveri, MD, a medical microbiology fellow at Brigham and Women's Hospital who specializes in infectious diseases.

Is there a shot to boost immune system? ›

Immune globulin injection belongs to a group of medicines known as immunizing agents. It is used to prevent or treat diseases that occur when your body has a weak immune system. Immune globulin contains antibodies that make your immune system stronger.

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