Reviewed By
Reviewed By
Overview
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Medium or Average
Based on 7 Reviews
6.4
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Quercetin
500 mg
â€
Most Useful Reviews
0
Jittery side effects
11 people found this helpful
Side effects. I took this supplement for about a week and immediately felt jittery. I also suffered massive headaches and couldn't identify the cause. After ceasing its use, I felt normal again. It simply wasn't suitable for me.
Read More
2
Persistent headache
7 people found this helpful
Headaches. After taking this for about two weeks, I developed a headache that wouldn't cease, day and night. I stopped taking it, and it took roughly 48 hours for the headache to diminish. I think Jarrow products are excellent, but I may be sensitive to this herb, as any brand possibly would have caused the same issue.
Read More
0
High dosage issue
5 people found this helpful
Gave me a headache. This caused me a horrible headache. Perhaps 500mg is too much for me.
Read More
User Reviews
USERS' SCORE
Medium or Average
Based on 7 Reviews
6.4
- All Reviews
- Positive Reviews
- Negative Reviews
0
Jittery side effects
11 people found this helpful
Side effects. I took this supplement for about a week and immediately felt jittery. I also suffered massive headaches and couldn't identify the cause. After ceasing its use, I felt normal again. It simply wasn't suitable for me.
Read More
2
Persistent headache
7 people found this helpful
Headaches. After taking this for about two weeks, I developed a headache that wouldn't cease, day and night. I stopped taking it, and it took roughly 48 hours for the headache to diminish. I think Jarrow products are excellent, but I may be sensitive to this herb, as any brand possibly would have caused the same issue.
Read More
0
High dosage issue
5 people found this helpful
Gave me a headache. This caused me a horrible headache. Perhaps 500mg is too much for me.
Read More
9
Sinus headache relief
4 people found this helpful
Love this stuff!. This makes me feel so much better! My sinus headaches vanish completely when I take these.
Read More
2
Major headaches
3 people found this helpful
Causes headaches. It works but results in significant headaches.
Read More
Frequently Asked Questions
9
No more sinus headaches
This saves me from sinus headaches during the spring and fall allergy seasons. It doesn't contain bromelain, which I prefer. I experience limited to no sinus headache attacks throughout the season! I believe it boosts my immune system, though that's difficult to quantify medically. Jarrow brand is my favourite for quercetin.
7.5
Relief from headache
5 people found this helpful
Quercetin by Jarrow Formula has helped my food allergies. When I experience a negative reaction, I take the quercetin, and it alleviates the headache.
