Last update
3/26/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Very Likely Ineffective
Based on 1 Research
2
USERS' SCORE
Good
Based on 6 Reviews
8.7
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Zinc (elemental) (from 271 mg Zinc Picolinate)
50 mg
455%
Top Medical Research Studies
2
Researchers tested whether zinc acetate could help people suffering from persistent, hard-to-treat cough. In this randomized, placebo-controlled pilot study, 34 participants received either zinc acetate or placebo for 6 weeks, with improvements measured using four different cough and quality-of-life scales.
While zinc successfully increased serum zinc levels in treated participants, both groups improved similarly across all measures. The improvements in cough symptoms and quality of life were too small to meet clinically meaningful thresholds, suggesting zinc acetate offers no real advantage over placebo for chronic cough sufferers.
While zinc successfully increased serum zinc levels in treated participants, both groups improved similarly across all measures. The improvements in cough symptoms and quality of life were too small to meet clinically meaningful thresholds, suggesting zinc acetate offers no real advantage over placebo for chronic cough sufferers.
Read More
Most Useful Reviews
9
Flu resistance
88 people found this helpful
I often fall ill, so I decided to try zinc as an immune booster after reading about its benefits. I took it alongside Ester C for 1.5 months. Recently, I was exposed to flu, yet despite the infection in the house, I did not get sick! My son experienced a mild form of the illness, but he began taking zinc and recovered quickly. In contrast, my father-in-law, who refuses to take supplements, suffered significantly from the flu. It seems zinc truly works wonders for immunity!
Read More
9
Immunity boost
4 people found this helpful
I've been using this form of zinc for nearly a year and didn't fall ill at all, unlike the previous year when I caught the flu often. It's an excellent immune booster. I recommend this form as it is well absorbed.
Read More
9
Eased chronic cough
This is one of the best bioavailable forms of zinc, providing excellent support for the immune system during viral illnesses. When I had covid in winter, I took zinc, NAC, and vitamins C and D before showing any symptoms. I managed to cope easily, with only two brief episodes of fever and no chronic cough.
Read More
Medical Researches
SCIENTIFIC SCORE
Very Likely Ineffective
Based on 1 Research
2
- All Researches
2
Researchers tested whether zinc acetate could help people suffering from persistent, hard-to-treat cough. In this randomized, placebo-controlled pilot study, 34 participants received either zinc acetate or placebo for 6 weeks, with improvements measured using four different cough and quality-of-life scales.
While zinc successfully increased serum zinc levels in treated participants, both groups improved similarly across all measures. The improvements in cough symptoms and quality of life were too small to meet clinically meaningful thresholds, suggesting zinc acetate offers no real advantage over placebo for chronic cough sufferers.
While zinc successfully increased serum zinc levels in treated participants, both groups improved similarly across all measures. The improvements in cough symptoms and quality of life were too small to meet clinically meaningful thresholds, suggesting zinc acetate offers no real advantage over placebo for chronic cough sufferers.
Read More
User Reviews
USERS' SCORE
Good
Based on 6 Reviews
8.7
- All Reviews
- Positive Reviews
- Negative Reviews
9
Flu resistance
88 people found this helpful
I often fall ill, so I decided to try zinc as an immune booster after reading about its benefits. I took it alongside Ester C for 1.5 months. Recently, I was exposed to flu, yet despite the infection in the house, I did not get sick! My son experienced a mild form of the illness, but he began taking zinc and recovered quickly. In contrast, my father-in-law, who refuses to take supplements, suffered significantly from the flu. It seems zinc truly works wonders for immunity!
Read More
9
Immunity boost
4 people found this helpful
I've been using this form of zinc for nearly a year and didn't fall ill at all, unlike the previous year when I caught the flu often. It's an excellent immune booster. I recommend this form as it is well absorbed.
Read More
9
Eased chronic cough
This is one of the best bioavailable forms of zinc, providing excellent support for the immune system during viral illnesses. When I had covid in winter, I took zinc, NAC, and vitamins C and D before showing any symptoms. I managed to cope easily, with only two brief episodes of fever and no chronic cough.
Read More
9
Skin inflammation
The supplement is fine, but the dosage was too high for me. I prefer zinc glycinate with pumpkin seed oil. I typically take zinc in winter, as it reduces skin inflammation and chronic cough frequency. For the last two years, I’ve managed without antibiotics during flare-ups.
Read More
9
Reduced chronic cough
The picolitic form of zinc is well absorbed by the body. My two sons and I took it; the eldest, aged 17, has experienced significantly less hair loss. The youngest, 13, started taking it while suffering from flu. This time, he did not develop a chronic cough or any snot.
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Frequently Asked Questions
6
Mixed results
I wasn't sure how effective vitamin zinc is at promoting rapid cell regeneration. While I didn’t see notable changes, my husband, who took it alongside multivitamins, stopped his chronic cough after a week. So, perhaps it works differently for each individual. I shall continue taking it as zinc is said to be necessary for viral infections.
9
Flu resistance
88 people found this helpful
I often fall ill, so I decided to try zinc as an immune booster after reading about its benefits. I took it alongside Ester C for 1.5 months. Recently, I was exposed to flu, yet despite the infection in the house, I did not get sick! My son experienced a mild form of the illness, but he began taking zinc and recovered quickly. In contrast, my father-in-law, who refuses to take supplements, suffered significantly from the flu. It seems zinc truly works wonders for immunity!
9
Skin inflammation
The supplement is fine, but the dosage was too high for me. I prefer zinc glycinate with pumpkin seed oil. I typically take zinc in winter, as it reduces skin inflammation and chronic cough frequency. For the last two years, I’ve managed without antibiotics during flare-ups.
9
Reduced chronic cough
The picolitic form of zinc is well absorbed by the body. My two sons and I took it; the eldest, aged 17, has experienced significantly less hair loss. The youngest, 13, started taking it while suffering from flu. This time, he did not develop a chronic cough or any snot.
9
Eased chronic cough
This is one of the best bioavailable forms of zinc, providing excellent support for the immune system during viral illnesses. When I had covid in winter, I took zinc, NAC, and vitamins C and D before showing any symptoms. I managed to cope easily, with only two brief episodes of fever and no chronic cough.
References
- Balasubramanian A, Holbrook JT, Canning BJ, Que LG, Castro M, et al. Efficacy and tolerability of zinc acetate for treatment of chronic refractory cough: pilot randomised futility trial. ERJ Open Res. 2023;9. 10.1183/23120541.00678-2022
Data last updated:
