Question: I heard there are problems with fluoride in tap water. If I already use a water filter, do I need to be concerned?
Answer: Though small amounts of fluoride strengthen tooth enamel, overexposure can cause tooth damage, as well as osteoporosis and hypothyroidism. A recent study found that 2 out of 5 teens had pits, spots and stains on their teeth caused by fluoride overload. Certain filters do remove fluoride from tap water, but they’re more specialized than the most common models. Look for reverse-osmosis filters or ones with activated alumina cartridges. Take note: Most bottled waters are not fluoride-free.
Want more of the fluoride low-down? Read "Fluoride Overload."