Last update
5/18/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
USERS' SCORE
Good
Based on 73 Reviews
8.1
Supplement Facts
Serving Size: 1 Veggie Capsule
Amount Per Serving
%DV
Selenium (from SelenoExcell® High Selenium Yeast) (Saccharomyces cerevisiae)
50 mcg
90%
Molybdenum (from molybdenum glycinate chelate)
50 mcg
110%
N-Acetylcysteine (NAC)
600 mg
†
Top Medical Research Studies
7
We conducted a 12-week study to explore the effects of selenium supplementation on flu immunity in healthy adults aged 50-64. Participants were divided into groups receiving different selenium doses or no selenium at all.
The results indicated that selenium could have both positive and negative impacts on immunity against the flu vaccine, influenced by the amount and type of selenium consumed. This complexity highlights the need for careful consideration of the benefits and risks associated with selenium supplementation in boosting flu immunity.
The results indicated that selenium could have both positive and negative impacts on immunity against the flu vaccine, influenced by the amount and type of selenium consumed. This complexity highlights the need for careful consideration of the benefits and risks associated with selenium supplementation in boosting flu immunity.
Read More
Most Useful Reviews
9
Flu relief
202 people found this helpful
What Big Pharma does not want you to know. N-acetyl cysteine is an overlooked lifesaver against cold and flu symptoms. After decades of proven relief, many remain uninformed about its benefits against the flu, which particularly affects older adults. The latest research reaffirms its protective role against various health threats, including influenza-related complications.
Read More
7.5
Sinus treatment
125 people found this helpful
This mostly cured my sinus problems. I take NAC during sinus symptoms, which significantly alleviates headaches, runny nose, and watery eyes. In a study, only 25% of older adults taking NAC experienced influenza-like symptoms compared to 79% in the placebo group.
Read More
9
Improves diabetes symptoms
10 people found this helpful
I decided to purchase this product based on its popularity and its selenium and molybdenum content, which are powerful antioxidants. After starting a regimen of one capsule daily after dinner, my morning blood sugar levels decreased significantly, and it even curbed my cravings for sweets. Importantly, it also helped clear my lungs after suffering from the flu and eliminated an annoying cough, contributing to my excellent health.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
- All Researches
7
We conducted a 12-week study to explore the effects of selenium supplementation on flu immunity in healthy adults aged 50-64. Participants were divided into groups receiving different selenium doses or no selenium at all.
The results indicated that selenium could have both positive and negative impacts on immunity against the flu vaccine, influenced by the amount and type of selenium consumed. This complexity highlights the need for careful consideration of the benefits and risks associated with selenium supplementation in boosting flu immunity.
The results indicated that selenium could have both positive and negative impacts on immunity against the flu vaccine, influenced by the amount and type of selenium consumed. This complexity highlights the need for careful consideration of the benefits and risks associated with selenium supplementation in boosting flu immunity.
Read More
User Reviews
USERS' SCORE
Good
Based on 73 Reviews
8.1
- All Reviews
- Positive Reviews
- Negative Reviews
9
Flu relief
202 people found this helpful
What Big Pharma does not want you to know. N-acetyl cysteine is an overlooked lifesaver against cold and flu symptoms. After decades of proven relief, many remain uninformed about its benefits against the flu, which particularly affects older adults. The latest research reaffirms its protective role against various health threats, including influenza-related complications.
Read More
7.5
Sinus treatment
125 people found this helpful
This mostly cured my sinus problems. I take NAC during sinus symptoms, which significantly alleviates headaches, runny nose, and watery eyes. In a study, only 25% of older adults taking NAC experienced influenza-like symptoms compared to 79% in the placebo group.
Read More
9
Improves diabetes symptoms
10 people found this helpful
I decided to purchase this product based on its popularity and its selenium and molybdenum content, which are powerful antioxidants. After starting a regimen of one capsule daily after dinner, my morning blood sugar levels decreased significantly, and it even curbed my cravings for sweets. Importantly, it also helped clear my lungs after suffering from the flu and eliminated an annoying cough, contributing to my excellent health.
Read More
7.5
Cleared after flu
5 people found this helpful
I'm unsure about its effects on the liver, but my facial skin has improved and cleared up. This dietary supplement also cleared my lungs and eliminated my persistent cough after the flu, so it suited me well. If my review was useful, please give it a thumbs up.
Read More
9
Effective after COVID
2 people found this helpful
The drug is excellent. Excess fluid has been expelled from my nasopharynx, and I can now breathe well after suffering from constant congestion and swelling. After two weeks of taking it, my issues have resolved. I recommend this drug during illness or after. I wish I had known about this sooner; it could have made my illness much easier to manage. I feel better breathing after a week of use.
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Frequently Asked Questions
9
Fast recovery
I experienced a very fast recovery from flu after using this. It also helps with mucus. I'll be purchasing again.
7.5
Cleared after flu
5 people found this helpful
I'm unsure about its effects on the liver, but my facial skin has improved and cleared up. This dietary supplement also cleared my lungs and eliminated my persistent cough after the flu, so it suited me well. If my review was useful, please give it a thumbs up.
9
Improves diabetes symptoms
10 people found this helpful
I decided to purchase this product based on its popularity and its selenium and molybdenum content, which are powerful antioxidants. After starting a regimen of one capsule daily after dinner, my morning blood sugar levels decreased significantly, and it even curbed my cravings for sweets. Importantly, it also helped clear my lungs after suffering from the flu and eliminated an annoying cough, contributing to my excellent health.
9
Quick family recovery
The whole family took one capsule twice a day for two weeks during the flu. We quickly recovered from the illness.
7
We conducted a 12-week study to explore the effects of selenium supplementation on flu immunity in healthy adults aged 50-64. Participants were divided into groups receiving different selenium doses or no selenium at all.
The results indicated that selenium could have both positive and negative impacts on immunity against the flu vaccine, influenced by the amount and type of selenium consumed. This complexity highlights the need for careful consideration of the benefits and risks associated with selenium supplementation in boosting flu immunity.
The results indicated that selenium could have both positive and negative impacts on immunity against the flu vaccine, influenced by the amount and type of selenium consumed. This complexity highlights the need for careful consideration of the benefits and risks associated with selenium supplementation in boosting flu immunity.
References
- Ivory K, Prieto E, Spinks C, Armah CN, Goldson AJ, et al. Selenium supplementation has beneficial and detrimental effects on immunity to influenza vaccine in older adults. Clin Nutr. 2017;36:407. 10.1016/j.clnu.2015.12.003
