Zinc

Does zinc work?

Zinc Claims

The supplement database currently has 6 claims for Zinc. The claims include: increase testosterone, decrease body fat, increase strength, improve muscular endurance, improve cycling performance, improve immune function.

Overall Effectiveness Rating for Zinc

The overall effectiveness rating for zinc is 1.8 out of 3. This rating means there is some evidence that using zinc may lead to positive results. This rating also means that some evidence does not back up all claims. Below you can find individual ratings for specific claims.

Overall Confidence Rating for Zinc

There are 9 studies in the database on zinc; the confidence rating is 30. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this rating is for zinc as a whole. There are also individual ratings for the claims below.

Products Containing Zinc

There are 22 products in the database containing Zinc. Follow the link to see the full list.

Individual Claims

The overall ratings above do no necessarily reflect each claim about zinc. Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

The effectiveness rating for zinc's ability to decrease body fat is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about zinc's ability to decrease body fat.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for zinc's ability to improve cycling performance is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about zinc's ability to improve cycling performance.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for zinc's ability to improve immune function is 3 out of 3. The confidence rating for this claim is 40. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about zinc's ability to improve immune function.

Effectiveness Rating for this claim: 3 out of 3

Confidence Rating for this claim: 40

The effectiveness rating for zinc's ability to improve muscular endurance is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about zinc's ability to improve muscular endurance.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for zinc's ability to increase strength is 1 out of 3. The confidence rating for this claim is 20. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about zinc's ability to increase strength.

Effectiveness Rating for this claim: 1 out of 3

Confidence Rating for this claim: 20

The effectiveness rating for zinc's ability to increase testosterone is 2 out of 3. The confidence rating for this claim is 60. This means there is not enough evidence in the database on this claim and the effectiveness rating above is not valid. Read more about zinc's ability to increase testosterone.

Effectiveness Rating for this claim: 2 out of 3

Confidence Rating for this claim: 60