Doctor's Best Quercetin With Bromelain Immune Support Antioxidant Supplement 180 Veggie Capsules

4.9★★★★★★★★★★8 reviews

• 5 ★7
• 4 ★1
• 3 ★0
• 2 ★0
• 1 ★0

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• JJoi17 Jan 2026
  5 ★

  Nasal Polyps Shrank

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

• GGaetan3 Jan 2026
  5 ★

  Good for sinusitis

  Good for sinusitis

• BBrainStorm24 Dec 2025
  5 ★

  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).

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• AAutismom6 Dec 2025
  5 ★

  Prevents flares for mcad

  When I stop taking this I get a flair up. Highly recommend as part of treatment for mast cell allergies. My doctor told me to try it so I'm really glad I saw someone current in good treatments! People taking it for fibromyalgia may see if mild mcad/mcas description fits their experience during flairs (if they aren't responding to western meds). Not enough mast cell aware docs out there yet imo. Consider Googling Anne Maitland webinars.Same with anyone taking it for apnea responsive allergies. Swelling decreases, apnea diminishes. Cool! if your mast cells are misbehaving somewhere, Quercitin is a good, natural mast cell stabilizer. As a random aside, Studies on quercitin in treating diseases have been done in Canada. If interested, Google quercitin Ebola, quercitin covid-19, quercitin sars. if you rely on this, you May consider buying what you can afford to have a reasonable supply built up.

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