Last update
3/31/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Very Likely Ineffective
Based on 1 Research
2
USERS' SCORE
Good
Based on 2 Reviews
8.5
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Zinc (from 405 mg Zinc Gluconate)
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
Relief from rhinitis
260 people found this helpful
After starting dietary supplements from Now Foods, I've completely forgotten about the constant chronic rhinitis and slight discomfort I used to suffer from during the autumn-winter period.
Read More
7.5
Improved health
100 people found this helpful
This vitamin supplement has been excellent for me. I’ve noticed a boost in my mood and energy levels, alongside a decrease in my chronic illness. It’s a wonderful support for health, immunity, and general well-being.
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 2 Reviews
8.5
- All Reviews
- Positive Reviews
- Negative Reviews
9
Relief from rhinitis
260 people found this helpful
After starting dietary supplements from Now Foods, I've completely forgotten about the constant chronic rhinitis and slight discomfort I used to suffer from during the autumn-winter period.
Read More
7.5
Improved health
100 people found this helpful
This vitamin supplement has been excellent for me. I’ve noticed a boost in my mood and energy levels, alongside a decrease in my chronic illness. It’s a wonderful support for health, immunity, and general well-being.
Read More
Frequently Asked Questions
9
Relief from rhinitis
260 people found this helpful
After starting dietary supplements from Now Foods, I've completely forgotten about the constant chronic rhinitis and slight discomfort I used to suffer from during the autumn-winter period.
7.5
Improved health
100 people found this helpful
This vitamin supplement has been excellent for me. I’ve noticed a boost in my mood and energy levels, alongside a decrease in my chronic illness. It’s a wonderful support for health, immunity, and general well-being.
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
