ABOUT

Smart discussion of the latest science and news on toxins in your food, water, and air, and what government agencies should be doing to protect public health. Written by EWG staff.

Follow ewgtoxics on Twitter

DONATE TO EWG!

Help us protect your health and environment!  Please donate $5 to EWG today.

GET EWG'S TIPS & ACTION ALERTS

Sign Up here to receive email updates and tips from EWG and stay informed on the issues that matter most to you.


Environmental Working Group's Facebook Page
YouTube

ENVIROBLOG VIA EMAIL

Delivered by FeedBurner

 Enviroblog in your Reader

Kid-Safe Chemicals Act

Get EWG widgets & blog badges.

Fluoride in your water: How much is too much?

Borax: Not the green alternative it's cracked up to be

Bottled Water Industry to EWG: Shut Up!

What's Inside: Clorox Shares a Little

SEARCH ENVIROBLOG

FIND PAST POSTS

FEATURED

Support the 2010 Safe Cosmetics Act. It's Urgent.

Why, oh why is there plastic in my aluminum water bottle?

Cell phone radiation series - Part 2: 8 Ways to reduce your exposure

So what products CAN we use?

Test Your Knowledge of Cosmetics Safety: 8 Myths Debunked

EWG's Tips for Parents: The Series

EWG's Tips to avoid BPA exposure

EWG on TV

Cutting the Pork from U.S. Farm Bill

Toxic Tub?

Sunscreen safety & DC drinking water

Perchlorate in people, kids' personal care products & plastics, and sunscreen

BPA in baby formula & safe cosmetics

Ask EWG

What can I do about fluoride in my water?

What is new carpet treated with? What can I do?

What is "fragrance"?

Which infant formula is best?

Are stainless steel water bottles safe?

Is mineral-based makeup safer?

Ask EWG Archives

Top Blog Award

Top  blogs award

PEOPLE TALKING TOXICS

Breast Cancer Fund

The Daily Green

Eco Child's Play

Environmental Defense Fund

Green Moms Carnival

Grist

Healthy Child, Healthy World

Huffington Post Green

NRDC's Switchboard

Organic.org

Safer States

TreeHugger

TALK TO US

Did we miss something? Email Enviroblog.

« How conventional hog farms pass the baton of antibiotic resistance | Main | Another Katrina legacy: Arsenic coated playgrounds »

Ask EWG: What can I do about fluoride in my water?

August 28, 2007

Question:I recently read a report in which EWG recommended using carbon filtration to filter tap water for drinking. The report pointed out that carbon filtering is less expensive than reverse osmosis filtration, but it didn't mention that carbon filtration does not remove artificially added fluoride from the water. I know that EWG is concerned with the health effects of fluoride, especially for children and pregnant women. Was this an oversight?

Answer: It's true that EWG opposes water fluoridation. Let’s take a look at the problem and what you can do to protect yourself and your family.

Water fluoridation is a public health problem.

Fluoride is often added to municipal water to reduce tooth-decay in children, but when consumed in water it actually has very little effect on dental health. The chemical is most effective when applied directly to teeth in toothpaste or mouth-rinse.

A growing body of evidence demonstrates the known and potential health consequences of fluoridated water:

  • permanent fluoride spotting on teeth (called dental fluorosis) is common and generally innocuous
  • A 2006 National Research Council review indicated that long-term exposure to fluoride in water increases bone fracture rates.
  • The same review concluded that fluoride might also affect thyroid, immune, and endocrine systems.
  • Perhaps of greatest concern is a 2006 peer-reviewed study by four Harvard scientists and medical doctors indicating a correlation between fluoride exposure and increased incidence of osteosarcoma -- a dangerous bone cancer -- in boys.

So what’s the solution?

Let’s be perfectly clear: the best solution to this public health problem is for local governments to stop fluoridating their water. You can find out if your local water utility adds fluoride by calling or visiting them online. If they do, be sure to express your concerns about the negative health impacts of fluoridation.

In the meantime…

While we recommend that everyone avoid fluoridated tap water whenever they can, the main concern is for pregnant women and bottle-fed infants. Babies are more sensitive to fluoride's effects, and the American Dental Association recommends that their formula not be made with fluoridated water. For those who are able, breast-feeding is the best option for infants. A mother's body filters fluoride out of breast milk.

Activated carbon pitcher filters, refrigerator filters, and tap-mounted filters reduce levels of many kinds of common tap water contaminants (including harmful chlorine byproducts), but not fluoride. Reducing those contaminants as well as fluoride requires a reverse osmosis filter. The price tag on reverse osmosis systems has come down significantly in the past year, but they still cost anywhere from $200 to more than $1000.

While we generally don't recommend that people drink bottled water, it is another option in communities with fluoridated tap water for parents who need to add water to their babies' powdered or concentrated formula. Jugs of bottled water without added fluoride can be found in most grocery stores, but be careful -- the cost can quickly add up to that of an in-home fluoride filter (and the bottled water industry has a significant impact on the environment, as well).

Above all, remember:

Pregnant women and babies need plenty of fluid. If the alternatives above aren't available to you, it's always better to stay hydrated by drinking your local tap water (or using it in formula) than to risk dehydration.

At EWG, we're working for national standards that will ensure that the best, safest tap water is available everywhere. You can learn more about the safety of your tap water at our National Tap Water Quality Database.

Got a question for our researchers? Send it in! We'll select one (or a few) for next month's edition of Ask EWG.

Want Ask EWG sent to your inbox? Sign up for our monthly bulletin.

« How conventional hog farms pass the baton of antibiotic resistance |