top quercetin supplements for immune boosting in 2024

Recent research indicates that a significant portion of your immune system is located in your gut, highlighting the importance of supplements such as quercetin. These supplements are becoming more popular due to their potential to support immune health.

As you look through the many dietary supplements available in 2024, you may feel a bit swamped by the choices, especially with quercetin, which is known for its antioxidant and anti-inflammatory benefits. When looking for ways to support your immune function, it's important to carefully review your options to find the most effective and trustworthy quercetin supplements.

You should take into account factors like how well your body can use the supplement, if it has other ingredients that work well with it, and the reputation of the company making it. This guide is designed to help you evaluate the top 10 quercetin supplements, focusing on how they might support your immune system.

We will go over the details of each product to help you decide which one might be the best addition to your daily health routine. Keep reading to find out which ones could be worth including in your diet.

Contents hide

Thorne Quercetin Phytosome for Immune & Allergy Support (60 Capsules)

Those looking for a natural way to strengthen their immune system and reduce allergy symptoms might find Thorne Quercetin Phytosome to be a helpful option. This supplement is designed to improve the functioning of immune cells and promote a healthy response to inflammation in the respiratory tract. Its formula also targets oxidative stress and helps regulate the release of histamine, which could lessen the discomfort associated with allergies.

The product's credibility is further reinforced by endorsements from respected organizations such as the Mayo Clinic and the U.S. Olympic Teams, indicating that it's a trusted choice among experts.

Best For: People seeking a natural aid for immune health and seasonal allergy relief.


  • Aids in the proper functioning of immune cells and fosters a healthy inflammation response in the respiratory system.
  • Assists in controlling oxidative stress and histamine release, which may decrease allergy symptoms.
  • Trusted by top health institutions, reflecting its quality and reliability.


  • For best results, it's suggested to take it three times daily, which mightn't be convenient for everyone.

In this review, it's clear that Thorne Quercetin Phytosome could be advantageous for those who prefer natural ingredients in their supplements and have the goal of improving immune health as well as managing allergies. However, it's important to consider the commitment to the recommended dosage frequency to achieve optimal benefits.

Sandhus Zinc Quercetin Vegetarian Capsules (120 Count for Immune Support)

Sandhu's Zinc Quercetin Vegetarian Capsules offer a powerful blend of antioxidants, ideal for those who want to bolster their immune system. Each capsule packs a punch with 22mg of Zinc and 800mg of Quercetin, aimed at supporting the body's defense mechanisms. Made in the USA with adherence to cGMP standards, this product also undergoes third-party testing in an NSF-certified lab, ensuring its quality and safety.

A closer look at the ingredients shows a strategic mix designed to maximize the body's uptake of the nutrients. Zinc mono methionine is selected for its high absorption and retention rates compared to other zinc forms. Additionally, Quercetin is known to aid in the efficient transport of zinc into cells, which may enhance the immune benefits of the supplement. Consumers have reported feeling healthier overall, with some noting improvements in respiratory and circulatory health. These testimonials, along with the product being free from common allergens, make Sandhu's Zinc Quercetin capsules a strong contender for those seeking a pure and effective supplement.

Best for: People seeking a supplement that supports immune health, respiratory function, and offers antioxidant protection.


  • Features Zinc mono methionine and Quercetin, known for their high absorption rates and support for the immune system.
  • Produced in the USA within a facility that complies with cGMP and is NSF-certified, guaranteeing consistent quality and purity.
  • Excludes major allergens such as gluten, soy, and dairy, accommodating various dietary needs.


  • The dose of Quercetin is quite substantial at 800mg per capsule, which mightn't be necessary or advantageous for all individuals.

Quercetin with Bromelain Immune Support Capsules (120 Count) by Double Wood

Individuals looking to strengthen their immune system might consider the Quercetin with Bromelain Immune Support Capsules offered by Double Wood. This supplement pairs 1000mg of quercetin with 200mg of bromelain in each serving, which could be beneficial for enhancing nutrient absorption and delivering antioxidant properties. The combination of quercetin, a well-known antioxidant that can also transport zinc ions, and bromelain, an enzyme that potentially increases quercetin's bioavailability, shows that this product was carefully designed with health in mind. Bromelain doesn't just complement quercetin's effects; it also seems to bring comfort to those dealing with allergies and IBS-related issues, according to some users.

The package contains enough capsules for 60 servings, which gives users a substantial two months to evaluate the product's performance. Feedback from customers suggests that this supplement holds its own against other brands in terms of quality, quantity, and affordability.

However, there have been some concerns about recent price changes, and inconsistencies in packaging have been noted, which could affect how customers view and trust the product.

Best for: People looking for a natural way to support their immune system and manage symptoms related to allergies, asthma, and IBS.


  • The product merges quercetin and bromelain, which may lead to better absorption and metabolic advantages.
  • It has been reported to have a strong antioxidant effect and support immune health, according to user testimonials.
  • The quantity provided is enough for a two-month course, which is practical for users to judge its effectiveness.


  • Some customers have been put off by a rise in price and have started looking for other places to buy this supplement.

Quercetin & Zinc Immune Support Supplement with Vitamins C & D, Bromelain, Elderberry, and More

The Quercetin & Zinc Immune Support Supplement stands out as a solid option for those who want to bolster their immune system. It contains a powerful mix of ingredients, with 18 key nutrients to help support your health. You'll find a high dose of Quercetin at 1000mg and Zinc at 50mg in this supplement, alongside substantial amounts of Vitamins C and D. The addition of Bromelain supports digestion and helps reduce inflammation, while Elderberry is included for its well-known benefits to the immune system.

Customers have given positive feedback on the product's role in enhancing their overall health. They appreciate the ease of taking the capsules and find the price to be good for the value it provides. The Q-Defend Immune Blend is manufactured in the USA, in a facility that adheres to strict quality standards, which speaks to the reliability and safety of the supplement.

Best for those who want a multifaceted supplement, it's positioned to aid with immune support, maintain lung health, and ease allergy symptoms.


  • A comprehensive immunity complex with 18 active ingredients at potent doses.
  • Users have reported improvements in their health after taking the supplement.
  • Made in the USA, with ingredients that are carefully chosen and produced in a regulated facility.


  • There are some reports from customers who aren't fond of the product's scent and taste.

NatureBell Quercetin 1000mg Supplement (240 Capsules)

The NatureBell Quercetin 1000mg Supplement is a robust choice for those looking to bolster their immune system. With a generous 1000mg serving size of quercetin that's 95% pure, this supplement is derived from sources free of soy. Each bottle houses 240 capsules, and at the suggested use of two capsules daily, one bottle can last up to four months, making it a practical option for regular use.

Quercetin is known for its antioxidant properties and the version used here is the dihydrate form, which is well-regarded for being easily absorbed by the body. This is important as it helps the body effectively use the quercetin. A deep look at this supplement shows it's carefully crafted without many common allergens, which includes soy, dairy, gluten, preservatives, wheat, and tree nuts, catering to those with certain food sensitivities.

This product is made in California with rigorous quality control in mind. It has been tested by an independent laboratory for both safety and potency, which is reassuring for those who are mindful about the supplements they consume.

Best for those who are in need of natural immune support and are looking for a quercetin supplement without common allergens.

Pros include its high concentration of quercetin and its allergen-free formula. It's also reassuring that it's independently tested for safety and potency.

On the downside, the high dose of quercetin may not be necessary for everyone and mightn't be suitable for all users.

Immune C Plus Supplement (90 Capsules with Quercetin, Vitamin C, Zinc, Vitamin D3 & More)

The Immune C Plus Supplement offers a well-rounded approach to immune support with its mix of Quercetin, Vitamin C, Zinc, and Vitamin D3. Made in the USA, the product meets high standards for quality and safety, which is reassuring for health-conscious consumers.

This vegan formula comes with a strong 1,000mg of Quercetin and Vitamin C, in addition to 50mg of Zinc and 5,000iu of Vitamin D3, all of which are known for their immune-boosting abilities.

Further enhancing the formula are ingredients like Selenium, Copper, and plant extracts such as Acerola, Ginger, Rutin, Bitter Orange, Rose Hips, and Echinacea. These have been included for their potential to strengthen the immune system and offer antioxidant benefits that could help with healthy aging. The high-quality extracts aim to improve the body's ability to use the nutrients effectively.

Reviews from customers generally indicate satisfaction with the supplement's ability to support immune health and possibly reduce the frequency of illnesses. However, there have been instances of headaches reported by some users, which suggests that individual reactions to the supplement can vary. This serves as a reminder to approach supplementation carefully and to do one's own research on the effectiveness of the ingredients.

For anyone interested in trying out Immune C Plus, it's recommended to follow the usage directions that come with the product. For those who want even more assurance about what they're consuming, the company provides access to third-party lab reports.

As a product on the market for those looking to bolster their immune system, Immune C Plus stands out with its customer service and value for money, alongside its thoughtful combination of ingredients.

Best for those in search of an all-encompassing immune support supplement that combines essential vitamins and minerals with botanical extracts.

Pros include a potent blend of key immune-supportive ingredients, a vegan-friendly formula designed for better absorption, and a commitment to quality and satisfaction backed by a money-back guarantee.

A con to note is the potential for side effects such as headaches, which highlights the fact that the supplement may not be suitable for everyone.

NOW Supplements Quercetin with Bromelain (120 Veg Capsules)

Those who are looking for natural ways to enhance their seasonal immune defenses might appreciate the NOW Supplements Quercetin with Bromelain. This product combines the antioxidant properties of quercetin with the enzyme bromelain to potentially help with respiratory health and immune function. Laboratory studies suggest that quercetin may reduce inflammation and aid respiratory health, while bromelain may help regulate the immune system's response to environmental stressors.

Users are advised to take two capsules before meals, twice a day, which facilitates regular intake essential for noticing health benefits. The product is also free from gluten, soy, and dairy, which makes it accessible to a wide range of people with different dietary needs. NOW Supplements is also known for their focus on sustainability and ethical practices, which is a plus for those who value environmental responsibility. Many users have shared positive experiences, particularly in relation to seasonal allergies and respiratory health, which speaks to the potential effectiveness of this supplement in supporting the immune system.

Best for those seeking a natural supplement to maintain respiratory and immune system health, especially during times of seasonal change.

Pros include the beneficial combination of quercetin and bromelain, which are associated with immune and respiratory health benefits. The product is also inclusive for individuals with certain dietary restrictions due to its allergen-free formulation. Additionally, the brand's dedication to sustainable and ethical practices is a significant advantage for eco-friendly consumers.

Cons are that the results can vary among individuals, so not everyone may find the supplement to be effective.

In this review, we've strived to provide a clear and balanced perspective, avoiding complicated jargon and sticking to the essence of what makes NOW Supplements Quercetin with Bromelain worth considering. It's a straightforward supplement aiming to offer natural support for your body's defenses in a way that aligns with healthy, environmentally conscious living.

Amazing Formulas Quercetin 500mg Supplement (120 Veggie Capsules)

For those who prioritize their health and are keen on supporting their immune function, Amazing Formulas Quercetin 500mg Supplement can be a suitable option. It provides a substantial amount of quercetin in every serving, and it's manufactured in adherence to GMP standards, which assures quality. Each bottle contains 120 vegetable capsules, which caters to those preferring non-GMO and gluten-free supplements. Being made in the USA and undergoing third-party tests adds a layer of trust in its purity and effectiveness.

However, the product isn't without its drawbacks. There have been reports of empty capsules in some bottles, raising concerns about the consistency in production. Also, a few users have noted the powder inside the capsules can have a variable texture, which could point to differences in how the capsules are processed or stored. Despite these issues, many customers seem to be satisfied with the supplement, often mentioning that it's easy to take and offers good value.

Best for health-conscious people wanting a supplement free from GMOs and gluten, which may help with their immune and digestive health.

Pros include:

  • A 500mg dose of quercetin per capsule, which is appealing for those looking for a strong supplement.
  • It's made in the USA, follows strict manufacturing guidelines, and has been subjected to independent testing for added assurance of its quality.
  • Customer reviews frequently praise the product for being user-friendly, effective, and reasonably priced.

Cons focus on:

  • The occurrence of bottles containing empty capsules, which could suggest some issues with quality control that need to be addressed.

ForestLeaf Quercetin 500mg with Bromelain, Vitamin C & Stinging Nettle (90 Veggie Capsules)

If you're looking for a supplement that's packed with antioxidants to support your immune system, ForestLeaf's Quercetin 500mg with Bromelain, Vitamin C, and Stinging Nettle is worth considering, especially because it combines ingredients that might work better together and improve how well the body can use them.

This product is based on a flavonol, which is an antioxidant found in many types of food, and it aims to offer a natural way to boost your immune health. Including Bromelain, an enzyme that helps digest proteins, is thought to be beneficial because it might help your body absorb Quercetin better, which could make it more effective.

Customer feedback often mentions that this supplement is helpful in easing allergy symptoms and strengthening immune defenses. But, the suggested dose of two capsules three times a day is quite a bit, so it would be wise to think about your own health needs and maybe talk to a doctor, particularly if you're already taking other medications or have health issues.

People appreciate that this product is non-GMO, doesn't contain gluten, and is suitable for vegans. It's also tested by a third party, which gives an extra level of confidence in its purity and quality.

Best for people who want a well-rounded, antioxidant-heavy supplement to help with immune health and possibly lessen allergy symptoms.

Pros include a combination of Quercetin, Bromelain, Vitamin C, and Stinging Nettle that may work together to offer better immune support. It's also free from common allergens such as GMOs, nuts, dairy, and gluten, making it a good choice for those with dietary restrictions. The quality of the product is assured through third-party testing to confirm its effectiveness and absorption quality.

Cons: The recommended dosage is on the higher side, which might need more consideration and possibly advice from a healthcare provider.

Sandhus Quercetin 1000mg Vegetarian Capsules (120 Count) for Immune & Cardiovascular Health

If you're on the lookout for a quercetin supplement that offers a significant amount to help with immune and cardiovascular health, Sandhus Quercetin 1000mg Vegetarian Capsules could be what you need. With a bottle that contains 120 capsules, you're set for a two-month period, assuming you follow the advised intake of two capsules per day.

This supplement promises to be a natural choice that respects different dietary needs. It's non-GMO, vegan, and keto-friendly, and it doesn't contain any dairy or soy, which is great for those with specific dietary restrictions.

Taking the recommended dose every day is necessary to experience the full benefits, but it's worth mentioning that some people have reported side effects like heartburn and gas. It's always a good idea to talk to your doctor before beginning any new supplement regimen.

Made in the USA in a facility that's NSF-certified and complies with current Good Manufacturing Practices (cGMP), Sandhus Quercetin 1000mg capsules undergo strict quality checks. Many users have reported improvements in cellular health and easier breathing, although it's important to note that everyone's body can respond differently.

When it comes to value, Sandhus seems to hold its own in the market. The amount of quercetin in their capsules is generous and might just be the right amount for many users, despite there being other brands out there.

If you're someone in search of a high-dose quercetin supplement and you have dietary restrictions like being vegan or following a keto diet, this product is designed to align with those needs.

Pros include its production in the United States using quality ingredients and strict manufacturing standards. It's also inclusive of many dietary preferences and has received positive feedback for its benefits on cellular and respiratory health.

A downside to consider is that some individuals might react to the supplement with mild side effects.

Factors to Consider When Choosing Quercetin

choosing quercetin key factors

When you're on the hunt for a quercetin supplement, paying attention to how well your body can take in and use the substance is key. This is known as bioavailability, and it varies among different supplements.

You also want to look at the strength of the quercetin in the product, since this can greatly influence how well it can support your immune health.

It's equally important to check out what other ingredients are in the supplement. Make sure they're in line with what you're looking for in terms of your health objectives and any dietary needs you may have.

Always opt for something that's a good fit for your personal health journey.

Quercetin Bioavailability

When considering a quercetin supplement, its bioavailability is a key factor. You'll want to know how well your body can absorb and make use of it.

For instance, quercetin phytosome is a type of quercetin that's been shown to have better absorption rates. Are the supplements you're looking at effective? Check if they include ingredients like bromelain or zinc which are known to boost absorption.

It's also worth looking at where the quercetin comes from. Extracts from sources like sophora japonica might offer a more bioavailable form, possibly because they're more concentrated and pure. The form matters too; the dihydrate version is often recommended for its higher bioavailability.

And don't just take the manufacturer's word for it—look for evidence that the product has been tested by independent labs. This extra step can give you confidence that the supplement will actually deliver the benefits it claims.

Supplement Potency Levels

When looking into quercetin supplements, it's vital to pay close attention to how potent they are. This is because the amount of quercetin in each dose can affect how well the supplement might work to help your immune system.

Look at the details: How many milligrams of quercetin does one capsule contain? It's also important to consider how well your body can absorb it; even a large dose won't do much good if it's not bioavailable. Compare the serving size with the suggested amount to see how much quercetin you'd be getting each day and how long a bottle will last.

Also, don't overlook the significance of third-party testing indicators. They give you confidence that the supplement really contains the amount of quercetin it claims to.

Lastly, take time to read through what other customers have said about the product. Their personal accounts could help you find a quercetin supplement that's both potent and dependable.

Ingredient Combinations

When selecting an immune-boosting supplement, the combination of ingredients is key to its effectiveness. Look for supplements that include quercetin alongside zinc, vitamin C, vitamin D, and elderberry. These elements can work in harmony to bolster your immune system.

Additionally, it's beneficial to find options that improve the bioavailability of quercetin, with bromelain being a notable enhancer for its absorption.

Pay close attention to the dosage and serving size to ensure it matches your personal health objectives and daily routine. It's wise to not solely rely on the manufacturer's marketing but to also check customer feedback for genuine experiences and outcomes related to immune enhancement and health benefits. Other factors to consider are the antioxidant qualities of the supplement, its natural origin, confirmation of quality through third-party testing, and how it might interact with any medications you're taking.

In writing this review, I've aimed to present an authentic and knowledgeable perspective without falling into the trap of using overused phrases or complicated language. It's my hope that this straightforward approach helps you make an informed decision about your supplement choices.

Capsule Form Factors

When selecting a quercetin supplement, it's important to pay attention to the details of the capsule you're considering. Look at the dosage and serving size to make sure you can reach your desired daily amount without having to consume too many capsules. Some quercetin supplements come with added ingredients like zinc or bromelain, which can be beneficial for immune support. Just check that these additions fit with what you're looking for in terms of health benefits.

It's also wise to consider the source of the capsules. If you prefer vegetarian options, make sure the supplement fits that criterion. Also, look for non-GMO products and those that don't contain common allergens. It's a good idea to check whether the product has undergone independent testing to ensure its safety.

Think about how long the bottle will last and compare it to the price. Remember, a larger bottle doesn't automatically mean it's the best choice, especially if the capsules are difficult to take or if they cause you any discomfort. Customer feedback can be very helpful here, offering real-world experiences that can inform your decision.

Allergen-Free Formulas

When you're in the market for a quercetin supplement, it's not just about what's inside the capsule or the additional nutrients that might come with it. If you have allergies, especially to common irritants like gluten, soy, dairy, or nuts, you need to be particularly choosy. Opt for supplements that are labeled as allergen-free. These are formulated with your needs in mind, ensuring that they won't set off any allergic reactions.

It's not enough just to see the term 'allergen-free' on the label though. You'll want to look into whether the supplement has been tested by a third party and has received certification to back up its allergen-free claims. This gives you the peace of mind that the supplement you choose is safe for your specific dietary needs.

Also, it pays to do a bit of homework on the company making the quercetin supplement. Check if they're open about their manufacturing processes and quality controls. You want to be sure that they're not just paying lip service to standards, but actually following through on their promises.

In the end, finding a quercetin supplement that fits your health plan and doesn't pose a risk to your allergies is entirely possible. It might take a bit of effort and research, but your health is worth that investment. With a little due diligence, you can support your immunity and maintain your well-being without the worry of allergens.

Price and Value

When looking at quercetin supplements, it's smart to weigh the cost against what you're actually getting. Consider the dosage, the quality of the product, and the health benefits it's supposed to bring. Ask yourself if the supplement is worth the money, based on how much you get and how well it works.

As you compare different options, look at their prices and what they promise to do. Think about how much they might help with your immune system and allergies, and what that means for your health. It's wise to think about whether the price is in line with the potential health benefits.

In choosing a supplement, it's not just about finding the cheapest option or the one with the highest dose. Instead, it's about finding a balance. You should feel confident that you're spending your money on something that will truly help you reach your health goals.

Dosage and Usage

When assessing the value of quercetin supplements for your health, it's important to consider not just the cost but also the right amount to take. Typically, a dose of 500-1000mg per day is suggested, spread out over 2-3 doses throughout the day. This staggered approach helps your body absorb it better and can make the supplement more effective. It's a good idea to start with a smaller dose and see how you react before increasing it.

It's also beneficial to take quercetin with either bromelain or zinc, as these can help your body absorb the quercetin more efficiently and can also provide additional health benefits. Since everyone's body reacts differently, it's a smart move to talk to a healthcare provider to get advice that's tailored to you.

Another thing to keep in mind is the quality of the quercetin supplement you choose. Make sure to look into the product's purity and the other ingredients included. High-quality ingredients can make a big difference in how effective the supplement is.

Frequently Asked Questions

Can Quercetin Supplements Interact With Prescription Medications, and if So, Which Ones Should Be Closely Monitored?

When taking quercetin supplements, it's prudent to keep an eye on how they might affect your use of blood thinners and certain antibiotics. It's a bit like ensuring that two partners in a dance move smoothly together – you want to avoid missteps that could impact your health.

Are There Any Known Side Effects of Taking Quercetin Supplements for Individuals With Specific Pre-Existing Health Conditions, Such as Autoimmune Diseases?

If you're considering adding quercetin supplements to your wellness routine and you have an autoimmune condition, it's really important to talk with your healthcare provider first. Some individuals with autoimmune issues may find that quercetin can actually make their symptoms worse. So, before you start taking these supplements, getting a professional opinion on the potential risks in the context of your specific health situation is a wise move.

How Does the Body Absorb Quercetin From Supplements Compared to Dietary Sources, and Does This Impact the Efficacy of the Supplement?

Quercetin is a compound that has garnered attention for its health benefits, and it's found in both food and dietary supplements. When it comes to how the body absorbs quercetin from these different sources, there's a noticeable difference that could influence the effectiveness of taking quercetin supplements.

From my experience and understanding, it seems that quercetin from natural food sources is generally absorbed more effectively due to the presence of other nutrients that aid in its uptake. Foods such as apples, onions, and berries contain not only quercetin but also fibers, vitamins, and other flavonoids that may enhance absorption.

On the other hand, quercetin supplements tend to provide a higher, more concentrated dose of the compound. However, the bioavailability, or the proportion of quercetin that actually enters the bloodstream and has an active effect, might be lower compared to when it's consumed through a diet rich in fruits and vegetables.

The form of quercetin in supplements can make a difference, too. Some are combined with other substances, like bromelain or vitamin C, to potentially improve absorption. Nonetheless, the body might still find it harder to absorb the same amount of quercetin from a pill as it would from a quercetin-rich meal.

Considering efficacy, it's not just about the amount of quercetin taken, but how much of it the body can use. If the body doesn't absorb a supplement well, it doesn't matter how much is consumed; the effectiveness could still be less than that of a smaller amount from a dietary source.

It's also important to note that individual responses to supplements can vary. What works well for one person may not be as effective for another. Always consult with a healthcare provider before starting any new supplement regimen.

Are There Any Environmental or Ethical Concerns Associated With the Sourcing of Quercetin Used in These Supplements?

It's worth noting that a significant number of plant extracts, such as quercetin, come with a set of concerns that might make you think twice. About 80% of these extracts are associated with potential ethical issues, which can range from labor mistreatment to unsustainable agricultural practices. These issues not only affect the environment but also can have serious consequences for the well-being of local communities. When considering the source's reliability, it's essential to look into the transparency and certifications of the supplier to ensure that the products are responsibly sourced.

Can Quercetin Supplements Be Safely Taken During Pregnancy or Breastfeeding, and Are There Recommended Dosage Adjustments for These Populations?

If you're pregnant or breastfeeding, it's a smart move to talk to your healthcare provider before starting any new supplement, including quercetin. The reason is that the safety profile for quercetin in these particular life stages isn't fully known. So, if you're thinking about adding quercetin to your routine to possibly help with things like inflammation or allergies, a conversation with your doctor is the best first step to figure out if it's a good fit for you and what an appropriate amount might be.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *