Tamarind juice is a popular ingredient used in various cuisines due to its unique tangy flavor. While it offers many culinary benefits, one of the key advantages of consuming tamarind juice is its ability to help take care of excess fluoride in drinking water (option 2).

Fluoride is a naturally occurring mineral that is beneficial for dental health but can be harmful in excessive amounts. In some regions, drinking water may contain high levels of fluoride, which can lead to fluorosis, a condition characterized by tooth discoloration and weakness. Tamarind juice contains natural compounds that can bind with excess fluoride, helping to remove it from the body.

Although tamarind juice does not directly prevent tooth decay (option 1), it can indirectly contribute to better oral health by reducing the intake of excessive fluoride. Additionally, tamarind juice does not play a significant role in easy digestion of food (option 3) or increasing the strength of bones (option 4).

In conclusion, consuming tamarind juice as part of a meal can be beneficial for those living in areas with high fluoride levels in drinking water, as it helps to take care of excess fluoride and prevent the potential harmful effects associated with fluorosis.