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Supplement safety

Plain-language articles on macular degeneration, AREDS2 and the nutrients studied for eye health, with links to the research behind every claim.

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Articles about Supplement safety

4 articles · Show all

Fresh oysters on ice beside small bowls of pumpkin seeds, cashews and lentils on a slate board
AREDS29 min read

Zinc and Copper for Eye Health: What the AREDS Trials Found

In the AREDS trial, zinc plus copper lowered the risk of progressing from intermediate to advanced AMD by 21%, according to the National Eye Institute. Here...

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Pharmacist talking with an older woman who is holding a supplement bottle at a pharmacy counter
AREDS26 min read

Are AREDS2 Vitamins Safe? Side Effects and Interactions

The main AREDS report found no statistically significant serious side effects, but high-dose zinc and vitamin E carry specific cautions. Here is what to review with...

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Hands reaching for a small dish holding one softgel and one tablet, next to a white bottle and an amber bottle on a wooden shelf
AREDS27 min read

Can You Take AREDS2 With a Multivitamin?

Yes. NEI says the AREDS2 formula does not replace a multivitamin, and most trial participants took both. The main caution is adding up nutrients like zinc...

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Older woman and a younger woman smiling as they review a handwritten list at a kitchen table beside an amber supplement bottle
Questions answered7 min read

AREDS2 and Blood Thinners: Questions for Your Doctor

If you take a blood thinner, talk with your doctor before starting AREDS2. Vitamin E is the main ingredient to discuss, and people on warfarin need...

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