Comments on: 7 Quercetin Supplement Benefits for Allergies & More

By: Doug Crook

Doug Crook — Tue, 03 Nov 2020 03:05:38 +0000

Here is a study. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4859676/

By: silvio fontana

silvio fontana — Mon, 26 Oct 2020 00:05:16 +0000

eating sufficient amounts of vegetables to ensure that Quercetin levels are at a sufficient therapeutic level is probably impossible within the realms of our human diet. The break down of vegetable matter to realise Quercetin in a bio available substance can not be maintained. In today’s world compounded by obesity, fatness and metabolic disease associated with poor dietary advice, the supplementation of Quercetin may well be beneficial

By: PRice

PRice — Tue, 24 Sep 2019 10:47:26 +0000

Further senolytic research:
Senolytics decrease senescent cells in humans: Preliminary report from a clinical trial of Dasatinib plus Quercetin in individuals with diabetic kidney disease
https://www.ebiomedicine.com/article/S2352-3964(19)30591-2/fulltext

By: Ana Aleksic, MSc (Pharmacy)

Ana Aleksic, MSc (Pharmacy) — Thu, 29 Aug 2019 11:17:52 +0000

In reply to david ross. Hi David, thanks for pointing this out. We've fixed the typo!

By: david ross

david ross — Sun, 11 Aug 2019 23:46:37 +0000

Point 11 states:
Lower dose quercetin (100 mg/day) from onion peel extract improved blood lipid profiles, glucose, and blood pressure in a study of 92 smokers. It reduced total and LDL cholesterol while lowering HDL, all of which are important factors for heart health [67].

When I read reference link [67], I read the text and table that stated quercetin RAISED HDL, which is actually good. You state above that it LOWERS HDL, which is not good. So your reference is good, and the conclusion of testing favorable to circulatory health. The paper does state that TOTAL cholesterol is lowered and also systolic/diastolic pressures are lessened… so in the end, good news. Simple mistake, I think.

By: JD Moyer

JD Moyer — Tue, 25 Jun 2019 22:02:41 +0000

Hi Joe. It may be worth noting that quercetin’s gastoprotective properties are due to upregulation of COX and potentially increased prostaglandin production. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2818348/

By: Ted S.

Ted S. — Thu, 25 Oct 2018 16:54:43 +0000

In reply to Rob W. Don't know if this will help your prostatitis. It helped my BPH. I developed eye issues taking terazosin and flowmax (blurry vision and a gray spot like a shadow in my left eye.) My eye doctor scanned my eyes and found fluid build up in the center of my retina, which explains the gray spot. I searched for a natural solution to BPH and Dr. Michael Gregor mentioned to take 3 tablespoons of ground flax seed daily. Said it had the same therapeutic value as BPH meds. It worked for my. I have fewer night time bathroom visits and a stronger stream. Maybe it will help you. I thought prostatitis was a bacterial infection. I had to take antibiotics when I had that problem twice.

By: leah taba

leah taba — Wed, 27 Jun 2018 07:44:54 +0000

sino author?

By: Connie

Connie — Sat, 09 Jun 2018 12:51:31 +0000

Question: there are so many benefits to taking this- but the “cons” to taking this seem to be alarming as well. Also- you mention it Lowers HDL- don’t we want higher HDL?
I’ve just started my son on this for allergies- but I’m not sure It’s a good idea now!! Any thoughts would be appreciated.

By: James Barclay

James Barclay — Fri, 06 Apr 2018 01:26:40 +0000

Some things which need to be addressed: (1)Physicians have little or no training in nutrition unless disease processes are directly related. In such cases either elimination of offending foods, or in more usual cases pharmaceuticals are prescribed. (2)Aging, for the most part, is a natural process, It is not in and of itself a disease. And it should not be addressed in such a negative way which Americans view it. In many countries old age is revered as a sign of prolonged health and wisdom. In Japan it is viewed as a form of beauty and is revered. This Western mania can itself be viewed as a pathological syndrome. (3)These advertised purgatives, if used to excess, can be highly dangerous, A conservative and “natural” approach to systemic health, especially through a sensible regime of correct diet, rest , physical activity and mental/spiritual health maintenance, should be highly encouraged. (4) Megadosing can be highly poisonous and damaging as well wasteful and should be roundly avoided. Thank you

By: Stan Hingston

Stan Hingston — Wed, 14 Mar 2018 20:41:58 +0000

Interesting you write that quercetin has anti-bacterial properties (point 37 above).
WEb MD warns that quercetin may reduce the effectiveness of some bacterial anti-biotics and said nothing about it improving it. Did you run across anything in your research supporting this?

By: Helen

Helen — Mon, 26 Feb 2018 19:16:37 +0000

In reply to Michelle Dixon.

Hi Michelle, there aren’t any available studies on quercetin and its effects on people with thyroid conditions. You may want to read this study on how it affects thyroid function in rats. https://www.ncbi.nlm.nih.gov/pubmed/24447974

By: Michelle Dixon

Michelle Dixon — Mon, 26 Feb 2018 18:47:18 +0000

I am presently taking NatureThroid for Hashimoto’s and am interested in the possible issues concerning taking Quercetin with an existing Thyroid condition.

By: Rob W

Rob W — Mon, 19 Feb 2018 16:37:08 +0000

Very nice article! I am considering using quercetin to try and treat my chronic prostatitis symptoms, but I have been reading the bioavailablity of the standard quercetin supplements is pretty poor. What are your opinions on Dihydroquercetin (AKA Taxifolin)? I have been reading it is much more potent and bio-available.

BTW, it would be awesome if you could provide any info on treating chronic prostatitis. Its a really awful condition affecting many men that deserves a lot more attention.

By: Doug

Doug — Sun, 31 Dec 2017 18:56:03 +0000

This study appears to show that quercetin DECREASED serum homocysteine in rats fed high levels of methionine:
https://www.sciencedirect.com/science/article/pii/S0899900712004182

By: Pater Rolf Hermann Lingen

Pater Rolf Hermann Lingen — Wed, 30 Aug 2017 20:08:59 +0000

“High HDL cholesterol levels linked to excessive mortality”
That is today’s (30th Aug 2017) news. Source is the Herlev and Gentofte Hospital, Copenhagen.

By: Craig

Craig — Thu, 24 Aug 2017 05:10:16 +0000

Found it very interesting reading & only thing negative is this Thyroid question? How safe is it over short term use compared to long term use?

By: Frankie

Frankie — Fri, 04 Aug 2017 21:21:36 +0000

Can you take the bio active form daily, or do you need to do a few weeks on and a few weeks off? If breaks are necessary, do you know the durations?

Thanks

By: Teri

Teri — Sun, 09 Jul 2017 05:16:39 +0000

I’m guessing it affects the thyroid by slowing it down some since we know kale and spinach are oxylates and affect the thyroid negatively. TSH may go up or thyroid meds may need to be tweaked.., all that said thyroid disease is also inflammatory like all autoimmune diseases..and the increased master cell response I’m having sent me here to research quercitin so I’m going to try it! And monitor..

By: Scott

Scott — Sun, 02 Jul 2017 22:16:04 +0000

FYI: quercetin is not well absorbed and isoquercetin or ALPHA-GLYCOSYL ISOQUERCITRIN might be an improvement.

Integrated therapeutics makes ALPHA-GLYCOSYL ISOQUERCITRIN supp.

By: Alba

Alba — Thu, 20 Apr 2017 19:08:53 +0000

I’d also like to know how quercetin affects thyroid function.

By: Karen Jon

Karen Jon — Tue, 11 Apr 2017 07:01:39 +0000

Lowers HDL cholesterol? Isn’t that the good one?

By: Helena Edwards

Helena Edwards — Fri, 24 Mar 2017 19:30:49 +0000

I am on synthroid and want to take Quercetin. Should I expect TSH to increase or decrease? and thus a need for dose adjustment? How long before Quercetin causes a change in the hormones . Should TSH be rechecked at 1 week or 1 month?

By: Barb

Barb — Sat, 14 Jan 2017 03:43:49 +0000

How does it effect the Thyroid?