What is a good name brand of Quercetin to try?

Thorne Research - Quercetin Phytosome

the only fat soluble Q on the market, able to cross the BBB. Great product. Don't forget some freeze dried nettles too

I just bought Natural Factors Quercetin from my local health food store.

On the days I take it - I take two caps twice a day.

What is the purpose of taking freeze dried nettles with Quercitin?

Hi -
Lapis_29, WalkingbyFaith, Girlie, jb1994, summer16, and Brab8878!

Thank You all for taking the time out of your day to respond to my thread. It means a lot to me. Thank You for sharing your name brand and amount you take. I have looked into some of them on Amazon already.

I spent a couple of hours today trying to research Quercetin and freeze dried nettles some more, And ended up getting more confused. I have a couple more questions.


NETTLES:

-I read that stinging nettles should only be taken for a short period of time (no longer than 6 months) due to possible side effects.

-Stinging nettle also exerts a mild diuretic effect, mainly by irritating the kidneys. Avoid nettle if you have a pre existing kidney condition as the long-term use may increase the risk of kidney damage.

-Stinging nettle may lower blood pressure.

-On the plus side, I read that nettles act as a natural antihistamine.

-Stinging nettles prevents an enzyme known as tryptase from reaching mast cells. Under normal circumstances, tryptase causes mast cells to break open (degranulate) and release additional histamine into the blood stream. Stinging nettle appears to blunt this effect, reducing the amount of histamine circulating in the body.

****So is it safe to take nettles daily for more than 6 months?



QUERCETIN:

-Quercetin is possibly safe for most people when taken by mouth short-term. Quercetin has been safely used in amounts up to 500mg twice daily for 12 weeks. It is not known if long-term use or higher doses are safe.

-When taken by mouth, Quercetin can cause headaches and tingling of the arms and legs. Very high doses might cause kidney damage.

-Most common dose of Quercetin is 500mg per day.

-Bromelain or Vitamin C may help your body absorb Quercetin better.

-Quercetin can interfere with thyroid function. It inhibits thyroid-cell growth and iodine uptake.

-You should take periodic breaks from taking Quercetin.

-At doses greater than 1 Gram per day, there have been reports of damage to the kidneys.

****Why should Quercetin only be used short-term? Isn't Quercetin in the fruits and vegetables we already eat?

****I read that Quercetin can inhibit thyroid function. Then on a Thyroid Forum I read of some people taking Quercetin for their thyroid issues. WHAT....?

*** Doses greater than 1 Gram per day, can lead to kidney damage. 1,000 mg= 1Gram. Yet I read Neil Nathan who has his patients take 500 mg before every meal and once at bedtime. So that's 2 Grams of Quercetin every day!!

****For the people who take Quercetin daily, does your doctor keep track of your kidney function through blood tests?

Sorry for all the questions again. Just trying to figure this out.

If anyone has any thoughts, I would be very interested.

LittleBear,

Glad you posted all that. I was not aware of the side effects of quercetin or stinging nettles, both of which are in my new MCAS supplements.

Until I developed MCAS about 6 weeks ago, I had only taken quercetin periodically when I had excessive pain and inflammation and could remember that it helped with that, LOL! I had never used stinging nettles before.

That’s a problem I am noticing about using herbs. There are risks involved with many if used in high dose or long term. I have not been diligent in researching everything I’m taking. Plus, our bodies are dysfunctional long term and we need ongoing support, so what are we supposed to do?

I also don’t have any doctors watching over me with labs. Unless I have an appointment, my Lyme doctor doesn’t order labs. She recently put me on fluconazole. I had to bring up labs and ask to have my liver and kidneys checked.