What is the main source of fluoride in the diet?

Fluoridated water and dental products represent the primary dietary sources of fluoride. Fluoride is a mineral that helps in the prevention of dental caries by strengthening tooth enamel and making it more resistant to acid attacks from plaque bacteria and sugars in the mouth. Community water fluoridation is a common public health practice that adds fluoride to drinking water supplies, which enhances oral health for populations that consume that water. Additionally, many dental care products, such as toothpaste and mouth rinses, contain fluoride for added protection against cavities.

In contrast, while other options pertain to various nutrients and dietary components, they do not contribute significantly to fluoride intake. Beef and pork products, citrus fruits and juices, and vegetable oils do not provide fluoride in meaningful amounts, thereby making them inappropriate choices when identifying the main dietary source of fluoride.