* Sodium bicarbonate (baking soda): This is the main ingredient that provides the fizzy, effervescent reaction when dissolved in water.

* Citric acid: This is a weak acid that reacts with the baking soda to create carbon dioxide gas, which causes the fizzing.

* Tartaric acid: This is another weak acid that is often added to fruit salts to enhance the tangy flavor and provide a longer-lasting effervescent effect.

* Flavorings: Fruit salts often contain natural or artificial flavors to add a pleasant taste. Common flavors include lemon, lime, orange, and grape.

* Sweeteners: Some fruit salts may contain sugar or artificial sweeteners to enhance the taste.

Note: The specific ingredients and proportions may vary depending on the brand and formulation of the fruit salt.

It's important to note that fruit salts are generally considered safe for occasional use, but excessive consumption can lead to gastrointestinal upset or other health issues.