Drinking water is the best source of this mineral
a. magnesium b. calcium c. phosphorus d. fluoride
The correct answer and explanation is:
The correct answer is d. fluoride.
Fluoride is a mineral that is commonly found in drinking water. It is added to public water supplies in many countries to help prevent dental cavities. Fluoride occurs naturally in groundwater, though its levels can vary depending on geographical location. In some areas, fluoride is present at levels that are beneficial to dental health without the need for additional supplementation.
Fluoride helps in the remineralization of tooth enamel, making it more resistant to the acids that can lead to tooth decay. It also inhibits the growth of harmful bacteria in the mouth, which can contribute to tooth decay. Fluoride is particularly effective when consumed at the appropriate levels, as it strengthens teeth both during their development and after they have emerged.
While calcium, magnesium, and phosphorus are essential minerals in the body, they are not typically found in significant amounts in drinking water. Calcium is important for bone health and muscle function, magnesium plays a role in nerve function and energy production, and phosphorus is crucial for energy storage and the formation of bones and teeth. However, these minerals are primarily absorbed from dietary sources such as dairy products, nuts, seeds, and leafy greens, rather than water.
Fluoride’s role in preventing tooth decay has been supported by extensive research. Its presence in drinking water has been widely endorsed by health organizations such as the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) as a safe and effective public health measure. However, excessive fluoride intake can lead to dental fluorosis, a condition that affects the appearance of teeth, which is why its concentration in drinking water is carefully regulated.