---
product_id: 3867270
title: "Doctor's Best Quercetin Bromelain, Immunity Support Capsule, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC"
brand: "doctor's best"
price: "€ 53.19"
currency: EUR
in_stock: true
reviews_count: 9
category: "Doctor's Best"
url: https://www.desertcart.pt/products/3867270-doctors-best-quercetin-bromelain-immunity-support-capsule-heart-joint-healthy
store_origin: PT
region: Portugal
---

# Non-GMO, Vegan, Gluten & Soy Free - clean, conscious formula 250mg Bromelain - natural enzyme boost 500mg Quercetin - potent antioxidant shield Doctor's Best Quercetin Bromelain, Immunity Support Capsule, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC

**Brand:** doctor's best
**Price:** € 53.19
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate Your Immunity Game — Because Staying Ahead is the New Normal

## Quick Answers

- **What is this?** Doctor's Best Quercetin Bromelain, Immunity Support Capsule, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC by doctor's best
- **How much does it cost?** € 53.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/3867270-doctors-best-quercetin-bromelain-immunity-support-capsule-heart-joint-healthy)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heart & Joint Wellness:** Formulated to promote cardiovascular health and joint comfort, keeping you active and vibrant.
- • **Powerful Immune Defense:** Harness the antioxidant power of 500mg Quercetin to support your seasonal immunity and overall wellness.
- • **Clean & Conscious Formula:** Non-GMO, vegan, gluten-free, and soy-free capsules designed for the mindful professional.
- • **High Potency & Convenience:** 180 veggie capsules per bottle, delivering a potent dose in a convenient daily regimen.
- • **Enhanced Absorption with Bromelain:** 250mg of pineapple-derived Bromelain enzyme maximizes Quercetin’s bioavailability for superior benefits.

## Overview

Doctor's Best Quercetin Bromelain combines 500mg of antioxidant-rich Quercetin with 250mg of Bromelain enzyme per serving to support immune health, heart function, joint comfort, and respiratory wellness. This non-GMO, vegan, gluten-free, and soy-free supplement offers a high-potency, clean formula in 180 veggie capsules, designed for professionals seeking proactive, natural health support.

## Description

Quercetin Bromelain supplies the flavonoid quercetin extracted from seed pods of the Dimorphandra mollis plant. Flavonoids are potent protective nutrients found in many plants and foods. Bromelain is an enzyme derived from pineapple.

Review: Currently taking my headaches away - Unlike many other reviewers, I do not take these for asthma or seasonal allergies. I currently take them for headaches, what I call migraine headaches and what my doctor calls tension headaches (we disagree). I've had problems with headaches for quite a few years now and have always "carefully" used Advil, which usually helped but didn't completely take the headache away. More recently I've been having more headaches and they are powerful bad ones, pain on both sides of the head, tension in the neck and upper back, lasting about 24 hours (+/- 4 hours), and usually include some stomach discomfort such as nausea and lack of appetite. In the past I blamed many of my headaches on caffeine (too much or not enough) but I found those headaches usually went away after a couple hours of sleep. The headaches I get not do not usually diminish with sleep and if I don't take anything for them, the pain prevents me from sleeping. In the past year I discovered that I was getting headaches every time I consumed pepper - red pepper, chili pepper, cayenne, tabasco, jalapenos, and even red or green bell pepper. Even the tiniest amounts such as contamination would cause one of my severe "migraine" headaches. This has been debilitating as I don't cook much and pepper is in many prepared and restaurant foods, often hidden in ingredients such as "spices" or "natural flavorings", or even just getting in stuff through contamination (same grill, same oil, etc). I grew up heating hot peppers all the time and I love eating at Chipotle's so it's been hugely disappointing to develop this problem. I've found a few other reports online of the same, but it does seem to be a very unusual problem. Just recently I've discovered that if I take one or two of these as soon as I feel (or suspect) a headache, it seems to stop the headache completely. I do get dry mouth and sometimes urinate a little more than usual as quercetin appears to be a diuretic. Quercetin is also a vasodilator (relaxes or "dilates" blood vessels) as it seems to increase nitric oxide in the blood. Vasodilators are generally considered the cause of migraines, so it seems odd that one vasodilator (peppers) will cause me a headache and another one (quercetin) will take it away. Likely the real mechanisms involved here are more complicated than that. I am pleased though to find that quercetin has this affect as Advil seems to be causing me ulcer-like symptoms (nausea, bloating, acid reflux), even at doses as small as (2) pills every five to seven days. University of Maryland Medical Center's website says that Quercetin has been known to cause kidney damage at doses greater than 1g (or 1000mg) per day, though I cannot find any scientific study showing that. Each capsule contains 250mg so (4) of these in a day might put you in kidney damage zone. I'm really careful, only taking them when I need them, and I usually try to take only 2 or max 3 in a 24 hour period. I don't think kidney damage can be detected in its early stages so you do want to be careful with these. However, oddly enough, quercetin has also been shown to protect against kidney damage or to help people who have kidney disease, so the studies here seem to be conflicting. I suspect the headache reducing effect for me will be short lived, or else I'll end up finding out that it also had to do with something else I was doing at the same time as I have been trying other things like cutting out caffeine, exercising, and experimenting with a few other supplements. If I have any more definitive information to add, I'll try to remember to come back and update this review. For now, I am sure that quercetin does take my bad headaches away as I've proven it numerous times (but it does seem to work best if I catch it early).
Review: CLOTS-BE-GONE - This review is for Quercitin-Bromelain/Nattokinase/Serrapeptase, because I take them all together, and don't know which individually had the great effect - BUT IF YOU EVER SUFFER CLOTS, READ THIS: I was struck by a 5500lb truck at 30mph and thrown 60ft and then run over with both axles, and suffered severe internal injuries. I ended up with a lot of raisin-sized clots in my anus. For some reason, they get stuck there, it's like a turn-around point in the venal-arterial system (like the hands/feet/head). First a doctor told me it was an emergency, and to come right in to have them surgically removed, so I did, and suffered the consequences of the poor physicians where I live (in many professional ways, it's 3rd world). She cut thru muscle and did a lot of damage, but did remove about 7 raisin sized clots. Then I noticed more (in the shower when you clean yourself), but since I couldn't go back to the doctor because of her wreckless neglect, I found these products in a desperate search to help myself - and guess what! THEY WORKED. I would take 2 of each (EMPTY STOMACH ONLY!), 6 total in the morning, and THEY DISSOLVED THE CLOTS IN DAYS! TRULY AMAZING! INCREDIBLE!!! SUPEREXPIALIDOCIOUS! The medical profession won't recognize this, but this stuff is MAGIC when it comes to blood clots - may have saved my life - since clots can do a lot of damage if they get stuck in your head or heart. Anyway, this is just incredible stuff for blood clots. Can't thank this business enough for a product that works like a charm. I am so thankful for this product. I feel like donating to the business out of gratuity! Now and then, I take them just for the heck of it, and have not had any more problems with blood clots. I really can't be more thankful - I would have had to have flown 1000 miles to deal with this any other way. IT IS MAGIC FOR BLOOD CLOTS!!! Hehe - MAGIC!

## Features

- QUERCETIN BROMELAIN BENEFITS - Doctor's Best Quercetin with Bromelain help support immune health, heart health, joint comfort, healthy digestions, respiratory health and supporting overall well-being.
- BALANCED IMMUNE SYSTEM - Quercetin is a dietary flavonoid found in fruits and vegetables has powerful antioxidant properties. Quercetin is renowned for supporting healthy seasonal immune system function.
- WITH BROMELAIN - Bromelain is a natrually occurring enzyme from pineapple stems that helps increase the bioavailability and benefits of the flavonoid Quercetin. Bromelain is known to help support a balanced immune system response.
- DIETARY SUPPLEMENT - Doctor's Best Quercetin Bromelain contains high potency Bromelain 3000 GDU per capsule, has 500 mg Quercetin with 250 mg Bromelain in a serving size of 2 Veggie Capsules. Non-GMO, Vegan, Gluten Free, Soy Free.
- IMPORTANT NOTE - Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000NRYTPM |
| ASIN  | B000NRYTPM |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Soy Free |
| Best Sellers Rank | #14,666 in Health & Household ( See Top 100 in Health & Household ) #9 in Bromelain Nutritional Supplements #1,369 in Sales & Deals |
| Brand Name | Doctor's BEST |
| Color | Doctor's Best Quercetin Bromelain, Quercetin Supplements Supports Immunity, Heart, Joint & Healthy Respiratory System, Non-gmo, Vegan, Gluten Free, Soy Free, 180 Count |
| Container Type | Bottle |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,560) |
| Date First Available  | September 9, 2003 |
| Diet Type | Vegan |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00753950000292 |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 2.38 x 2.38 x 4.44 inches |
| Item Form | Capsule |
| Item Nype Name | Quercetin Bromelain |
| Item Weight | 0.28 Pounds |
| Item model number  | DRB-00029 |
| Manufacturer | Doctor’s Best, Inc |
| Manufacturer  | Doctor’s Best, Inc |
| Material Type Free | Gluten Free/Soy Free |
| Model Name | Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC |
| Number of Items | 1 |
| Primary Supplement Type | Quercetin |
| Product Benefits | Immune Support |
| Product Dimensions  | 2.38 x 2.38 x 4.44 inches; 4.48 ounces |
| Special Ingredients | Bromelain |
| Specific Uses For Product | Immune |
| UPC | 753950000292 |
| Unit Count | 180 Count |

## Product Details

- **Brand:** Doctor's BEST
- **Diet Type:** Vegan
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Primary Supplement Type:** Quercetin

## Images

![Doctor's Best Quercetin Bromelain, Immunity Support Capsule, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC - Image 1](https://m.media-amazon.com/images/I/61a92iBvHkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Currently taking my headaches away
*by B***M on September 26, 2016*

Unlike many other reviewers, I do not take these for asthma or seasonal allergies. I currently take them for headaches, what I call migraine headaches and what my doctor calls tension headaches (we disagree). I've had problems with headaches for quite a few years now and have always "carefully" used Advil, which usually helped but didn't completely take the headache away. More recently I've been having more headaches and they are powerful bad ones, pain on both sides of the head, tension in the neck and upper back, lasting about 24 hours (+/- 4 hours), and usually include some stomach discomfort such as nausea and lack of appetite. In the past I blamed many of my headaches on caffeine (too much or not enough) but I found those headaches usually went away after a couple hours of sleep. The headaches I get not do not usually diminish with sleep and if I don't take anything for them, the pain prevents me from sleeping. In the past year I discovered that I was getting headaches every time I consumed pepper - red pepper, chili pepper, cayenne, tabasco, jalapenos, and even red or green bell pepper. Even the tiniest amounts such as contamination would cause one of my severe "migraine" headaches. This has been debilitating as I don't cook much and pepper is in many prepared and restaurant foods, often hidden in ingredients such as "spices" or "natural flavorings", or even just getting in stuff through contamination (same grill, same oil, etc). I grew up heating hot peppers all the time and I love eating at Chipotle's so it's been hugely disappointing to develop this problem. I've found a few other reports online of the same, but it does seem to be a very unusual problem. Just recently I've discovered that if I take one or two of these as soon as I feel (or suspect) a headache, it seems to stop the headache completely. I do get dry mouth and sometimes urinate a little more than usual as quercetin appears to be a diuretic. Quercetin is also a vasodilator (relaxes or "dilates" blood vessels) as it seems to increase nitric oxide in the blood. Vasodilators are generally considered the cause of migraines, so it seems odd that one vasodilator (peppers) will cause me a headache and another one (quercetin) will take it away. Likely the real mechanisms involved here are more complicated than that. I am pleased though to find that quercetin has this affect as Advil seems to be causing me ulcer-like symptoms (nausea, bloating, acid reflux), even at doses as small as (2) pills every five to seven days. University of Maryland Medical Center's website says that Quercetin has been known to cause kidney damage at doses greater than 1g (or 1000mg) per day, though I cannot find any scientific study showing that. Each capsule contains 250mg so (4) of these in a day might put you in kidney damage zone. I'm really careful, only taking them when I need them, and I usually try to take only 2 or max 3 in a 24 hour period. I don't think kidney damage can be detected in its early stages so you do want to be careful with these. However, oddly enough, quercetin has also been shown to protect against kidney damage or to help people who have kidney disease, so the studies here seem to be conflicting. I suspect the headache reducing effect for me will be short lived, or else I'll end up finding out that it also had to do with something else I was doing at the same time as I have been trying other things like cutting out caffeine, exercising, and experimenting with a few other supplements. If I have any more definitive information to add, I'll try to remember to come back and update this review. For now, I am sure that quercetin does take my bad headaches away as I've proven it numerous times (but it does seem to work best if I catch it early).

### ⭐⭐⭐⭐⭐ CLOTS-BE-GONE
*by C***K on June 21, 2013*

This review is for Quercitin-Bromelain/Nattokinase/Serrapeptase, because I take them all together, and don't know which individually had the great effect - BUT IF YOU EVER SUFFER CLOTS, READ THIS: I was struck by a 5500lb truck at 30mph and thrown 60ft and then run over with both axles, and suffered severe internal injuries. I ended up with a lot of raisin-sized clots in my anus. For some reason, they get stuck there, it's like a turn-around point in the venal-arterial system (like the hands/feet/head). First a doctor told me it was an emergency, and to come right in to have them surgically removed, so I did, and suffered the consequences of the poor physicians where I live (in many professional ways, it's 3rd world). She cut thru muscle and did a lot of damage, but did remove about 7 raisin sized clots. Then I noticed more (in the shower when you clean yourself), but since I couldn't go back to the doctor because of her wreckless neglect, I found these products in a desperate search to help myself - and guess what! THEY WORKED. I would take 2 of each (EMPTY STOMACH ONLY!), 6 total in the morning, and THEY DISSOLVED THE CLOTS IN DAYS! TRULY AMAZING! INCREDIBLE!!! SUPEREXPIALIDOCIOUS! The medical profession won't recognize this, but this stuff is MAGIC when it comes to blood clots - may have saved my life - since clots can do a lot of damage if they get stuck in your head or heart. Anyway, this is just incredible stuff for blood clots. Can't thank this business enough for a product that works like a charm. I am so thankful for this product. I feel like donating to the business out of gratuity! Now and then, I take them just for the heck of it, and have not had any more problems with blood clots. I really can't be more thankful - I would have had to have flown 1000 miles to deal with this any other way. IT IS MAGIC FOR BLOOD CLOTS!!! Hehe - MAGIC!

### ⭐⭐⭐⭐⭐ Nasal Polyps Shrank
*by J***I on August 6, 2025*

Works well for nasal polyps. I can breathe and smell for the first time in years!

## Frequently Bought Together

- Doctor's Best Quercetin Bromelain, Immunity Support Capsule, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC
- Doctors BEST High Absorption Magnesium Lysinate Glycinate 100% Chelated, Muscle Relaxation & Sleep Support, Non-GMO, Gluten Free, Soy Free, Vegan, 100% Chelated 240 Tablets
- Doctor's Best High Absorption CoQ10 with BioPerine, Gluten Free, Naturally Fermented, Heart Health, Energy Production, 100 mg, 120 Count

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/3867270-doctors-best-quercetin-bromelain-immunity-support-capsule-heart-joint-healthy](https://www.desertcart.pt/products/3867270-doctors-best-quercetin-bromelain-immunity-support-capsule-heart-joint-healthy)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-21*