Zinc can shorten the duration of a cold, but ConsumerLab.com found that a not all products provide a dosage that's been proven effective. Zinc can also slow the progression of advanced macular degeneration of the eye, but the amount you need may be less than some products contain — and there is a risk of causing copper deficiency from taking too much zinc!
Zinc supplements may be useful in treating other conditions including acne, depression, and anorexia nervosa, and, of course, in preventing and correcting zinc deficiency. But which form of zinc should you choose, and which products provide what you want at the lowest cost? The answers are in our report.
We tested tablets, caplets, lozenges and a liquid, to be sure they contained what they claimed, properly released these ingredients, and were not contaminated with toxic metals like arsenic, cadmium, or lead. Not all of the products passed these tests.
In this comprehensive report about zinc supplements and zinc lozenges, you'll get test results and quality ratings for 18 zinc products (including 8 which passed our voluntary Quality Certification Program) and information about two other zinc supplements similar to one that passed testing. You'll learn:
- Which zinc supplements passed testing, which failed, and which offer the best value
- Which zinc lozenges provide a dosage known to work -- and which do not
- What zinc can and cannot do for your health
- If certain forms of zinc are better absorbed than others
- The zinc dosage to treat conditions including colds, macular degeneration, and zinc deficiency
- The potential side-effects of zinc and other concerns with zinc, including drug interactions
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