There are two sides to the “fluoride in drinking water” argument. Some scientists claim that the fluoride in the tap water can help overall oral health, especially with teeth and gums. Critics state that the long terms effects of fluoride may be too much to risk. New research seems to side with the naysayers.

A team of scientists at the University of Kent showed that in areas where there is a high level of fluoridation in tap water, there were more cases of underactive thyroids. If a thyroid is underactive, this can lead to depression and weight gain. It seems that more testing is needed before a verdict for adding fluoride to tap water can be made. For more details on this research, click here:: ‘Fluoride in water could cause depression, weight gain’ – scientists