Quercetin is a naturally occurring pigment found in many fruits and vegetables that many of us take for granted. Also known as a flavonoid, quercetin helps regulate cellular activity, fight off free radicals, and help the body function more efficiently.
Not only that, but quercetin is a powerful antioxidant that protects the body from everyday stressors and toxins. Being the most abundant flavonoid in the diet, quercetin has many benefits to overall health and immune system function.
Additional benefits of introducing more quercetin into the diet include reduced risk of heart disease and various cancers. Free radicals are essentially unstable molecules that may cause cellular damage if levels become too high.
This is why it’s important to maintain a healthy immune system and to ensure the body is as protected as it can possibly be from unknown viruses and diseases.
People will get anywhere between 5-500 milligrams of quercetin per day, largely depending on diet. It can be found naturally occurring in onions, apples, grapes, berries, broccoli, citrus fruits, cherries, green tea, grains, coffee, and red wine.
Although it is naturally abundant in a lot of foods, many people choose to take supplements for different reasons. These include boosting immunity, fighting inflammation, combat allergies, assist exercise performance and accelerate tissue repair, and maintaining overall health.
The benefits of taking daily supplements that are naturally sourced and proven to boost your immune system are unmatched in the modern world.
Of course, with a varied diet and regular exercise, it’s unlikely that you will need additional nutrients, but for those looking to push their body a little further, or with weaker immune systems, supplementation is a great way to ensure your body gets the nutrients it needs.
The human body is incredibly complex, made up of thousands of unique compounds to create the smooth-running machine that many of us take for granted. Introducing extra nutrients has many benefits.
However, there are some drawbacks if you do not carry out thorough research and speak to a doctor beforehand.
These are some of the best quercetin supplements available on Amazon. We have compared customer reviews, recommended daily intake, ingredients, and health benefits of each product to enable customers to make the most informed decision about their health.
The role of maintaining your health is essential during the colder months when flu viruses are rife, but it is just as important during the spring and summer when it’s more likely to suffer from allergies.
Not to mention the role that supplements can play in flu season, building up a strong immune system now can create natural resistance to allergies and build up a tolerance by the time the seasons change.
Some great multivitamins combine quercetin with zinc to enable effective and reliable absorption of immune-boosting nutrients. The role of essential nutrients within the immune system is second to none.
Vitamin C is also an important daily contributor to effective immune response and protecting the body from diseases and illnesses. That is why a number of the products listed below contain other vitamins and ingredients added.
Depending on what you want to work on, for example, making allergy response less severe during the spring, or added immune protection, supplements can be a great way to ensure your body is working as it should be.
Providing daily nutrients, you can go about your day with ease knowing that your daily supplement or gummy has everything that you need in order to function properly.
Our Best Quercetin Supplement Reviews
Firstly, the addition of zinc offers a combined immune system boost that we could all would benefit from during flu season. Quercetin is an ionophore, meaning that it helps other molecules get into cells, just like insulin assists glucose molecules. Once in the cell, zinc stops the replication of viruses.
The body is, therefore, stronger and more resistant to foreign bodies when taking zinc and quercetin regularly.
- Per serving: 22mg Zinc, 800mg quercetin, very high amounts of both offer effective daily doses and consistent immune system benefits
- Average 4.8-star rating
- Sandhus has a good reputation and is known for using naturally sourced ingredients
- Magnesium stearate is not a healthy zinc source and is a controversial ingredient in the supplement field because customers want clarity, and to be able to trace all the ingredients.
Next is another product with an average 4.8-star customer rating. With a lot of apply, these supplements are available in two size options containing 100-200 capsules.
Jarrow Formulas primarily focuses on the benefits of quercetin and has worked hard to naturally source the flavonoid from the Japonica Sophora Tree. The cardiovascular benefits have been outlined as one of the main properties of quercetin.
- Great for allergies, enabling a natural tolerance to build-up
- Helps with brain fog, optimizing cognitive function and focus
- not tested by the Food and Drug Administration (FDA), which means that the overall quality of the product and brand reliability is somewhat questionable
- Not safe for celiac or other gut health concerns- Customers reported the supplement ineffective and that it can, in some cases, make symptoms worse. If you are vulnerable to gut health problems, consult a doctor before purchasing supplements
Available in elderberry flavor, this two-pack of gummies is great for adults and children suffering from allergies or wanting an immune boost. Gummies are a great way to reinforce healthy habits like taking daily vitamins, while educating children on how important it is to maintain good health and immunity.
- Suitable for vegans, gluten-free, and non-GMO
- Easy to absorb
- Suitable for adults and children, these supplements are a great family staple
- Not evaluated by FDA
- Roughly 30 calories per gummy, they have been sweetened to make them easier to take but aren’t ideal for those avoiding sugar or trying to be more mindful of their glucose sources.
- Low estimated amounts of quercetin- the focus is more on being an all-in-one product rather than offering specific benefits, it aims at being a great daily multivitamin
If you are looking for a supplement that will help with allergies, and offer you as much immunity to reactions as possible, then this is the perfect option for you. Bromelain, vitamin C, and Nettles offer the perfect combination for allergies that is a great natural substitute for Benadryl.
Nettles have a range of health benefits, such as reducing inflammation, treating allergies, and naturally lowering blood pressure.
- vegetarian, dairy-free, and gluten-free, offering a more natural, plant-based option
- Contains vegetable magnesium stearate, which has been highlighted as an unhealthy alternative ingredient within supplements. It is an insufficient source of zinc
- 45 servings per bottle- meaning that you will need to stock up if you’re looking to find a supplement for multiple people to use daily.
- Focus is more on allergies, offering a good blend of natural ingredients to assist in common allergies, however they are less general and not the best if you are looking for more of a daily multivitamin kind of product.
Pure Encapsulations have an elite reputation and have paved the way for other big supplement companies to grow from. Their quercetin capsules are available in 120 packs, or 60, and are Amazon’s choice for quercetin supplements.
With an average customer rating of 4.8 stars, it’s easy to see why it holds the position at the top of the supplement game. Offering a respectable 500 mg daily dose, the capsules offer improved immune function and cardiovascular health.
- gluten-free, vegan
- no magnesium stearate or harmful GMOs, making a more natural supplement
- Not FDA approved, more on the role of this later
- 120 capsules, and a daily 2 capsule serving means that customers are encouraged to consume more than needed, and there are hints that the main focus of the marketing is on financial gain rather than customer health and wellbeing.
- This year, Pure Encapsulations are rumored to have sold out to Nestle, causing a decrease in quality. Some work needs to be done to focus the product on its original quality and bring back the positive customer experience.
To summarize, quercetin has many benefits on overall health, the immune system, and general wellbeing.
It’s no wonder why the vast world of supplements have taken the antioxidant and used it to promote resistance to allergies and improved cardiovascular health.
From cognitive function to improved resistance to viruses and diseases, there are so many benefits to introducing more quercetin into your diet. Naturally, including more fruits and vegetables is the recommended choice, however, this isn’t always practical for certain individuals.
Whether you are a fussy eater, allergic to a lot of foods, or simply cannot get as much as you think you could be getting through your food.
The recommendations above are in place to help you make the most informed decision and offer some of the best quercetin supplements on the market. It is a great daily supplement that will improve bodily functions, not to mention essential tissue repair following intense exercise or training.
With regular intake, the body is able to repair itself faster and enable shorter rest periods.
Optimized conditions enable you to push your body to its limits and fulfill your potential. Even if you aren’t looking to introduce a more rigorous training regime, supplements are perfect for increasing your body’s natural resistance to viruses such as the flu.
The body is able to function how it was intended to, and it is a great idea to promote quercetin supplementation to your friends and family, especially if they are more vulnerable to allergies or have weakened immune systems.
Of course, it is essential to consult your doctor before starting any new daily supplements because they are medically trained to offer you the best advice on what is best for you. They will consider your history, current medication, allergies, and immune response in order to provide the most accurate and effective suggestions.
You might even find that there is a better supplement that you could be taking that is more essential to your health. A doctor will consider your individual needs, and suggest what your body might need more or less of.
The US Food and Drug Administration (FDA) is essential in supporting the benefits of medication development, food safety, and keeping track of public health challenges such as virus outbreaks or antibiotic resistance.
From local markets to the entire pharmaceutical industry, the FDA has a highly influential role in approving, disapproving, or recommending a product or service to the American public.
Because a lot of the supplements listed above are not approved by the FDA, it is hard to decide how reliable they are as well as how effective they are at doing what they claim to do.
The benefits of the products involved are therefore somewhat questionable because consumers rely on reputable companies to determine a products’ quality.
By offering consistent standards for brands to abide by, the FDA is essential in maintaining product quality and authenticity. Color additives and other harmful substances are looked for during the approval process, and the country-wide standard is highly reputable.
Supplements are a gray area when it comes to FDA approval because they are not legally required to gain approval before manufacturing. It is up to the companies developing the supplements themselves to establish that their products are safe, reliable, and unlikely to cause harm to the public.
The approval process can be difficult to achieve when working within an area that isn’t deemed essential for the FDA.
No matter how prestigious your brand may be, consumers will look for nationally recognized authorities to gain an understanding of how safe a product is.
If possible, when you are carrying out your own research and deciding which supplement is best for you, try to look for FDA approval, and you are sure to be limited in options.
Falling short of that, another great thing to check when looking for signs of a quality supplement is customer reviews. No one is more honest and open about the effects of a product than those that leave reviews.
There are some common side effects of taking quercetin regularly. These include headaches and an upset stomach. It’s unclear whether these are a direct result of increased quercetin levels, or if it’s due to other ingredients within certain supplements.
It is, however, essential that you consult a doctor before taking supplements and discuss the potential risks and side effects that you may experience.
Another drawback to consider is that quercetin may change how the body responds to other medications. Antibiotics, warfarin, or other drugs that are changed by the liver can all be affected, and you might find yourself suffering from this if you aren’t careful.
The aim of this guide is to provide you with all the facts that are needed to make an informed decision on which supplement is right for you, not to scare you away. That is why we’ve highlighted the pros and cons of each product and highlighted the importance of speaking with your doctor.
Another potential risk is that quercetin can interfere with thyroid function. If you are vulnerable to thyroid-related health issues, it is even more important to speak with a doctor before considering purchasing supplements.
There have also been studies into the risks of having too much quercetin in the system. Kidney damage is likely when taking the supplements over long periods of time. For that reason, it’s essential to take periodic breaks.
Another damaging effect of quercetin is if you are pregnant or breastfeeding, in which case you should avoid it.
Studies have also shown that quercetin has potentially toxic effects on the body when taken in high doses.
Consuming more than 1g a day can be very harmful. Not to mention, it can inhibit the production of key enzymes involved in hormone metabolism.
This is why too much quercetin can be damaging to the thyroid and kidneys because hormone maintenance is crucial when managing mood, stress response, sweat levels, and triggering the fight or flight response.
Many people take supplements for granted and have little understanding of the role it plays in immune function, cognitive responses, and tissue repair. The body is a highly complex mechanism that requires regular maintenance.
From medication to vitamins, it’s crucial to regularly speak to your doctor about getting your vitals checked as well as maintaining physical fitness. There might even be specific brands that your doctor could recommend for you to take, depending on what levels are low within your system.
Many people take supplements based on guesswork, which is why they can end up significantly ill. Do your research and stay safe when supplementing.
Get as much feedback as you can from those around you on how quercetin affected them and what, if any, changes they noticed within their health, mood, and sense of wellness. Good luck, your journey to better health starts now.