Tapioca is a starch extracted from the cassava root (also called manioc or yuca), which is native to South America. It is a versatile ingredient, commonly used in various forms like pearls, flour, or flakes. Here's a breakdown of its key contents:

1. Carbohydrates: Tapioca is primarily composed of carbohydrates, making it a high-energy food. It's mostly starch, which is a complex carbohydrate.

2. Calories: Tapioca is relatively high in calories due to its starch content. One cup of cooked tapioca pearls typically contains around 135 calories.

3. Protein: Tapioca is very low in protein content.

4. Fat: It contains minimal amounts of fat.

5. Fiber: Tapioca has a small amount of dietary fiber, though it is not considered a high-fiber food.

6. Minerals: Tapioca provides small amounts of minerals like calcium, iron, and magnesium, but these are not present in large quantities.

7. Vitamins: It doesn't provide significant amounts of vitamins, although it may contain trace amounts of vitamin C and B vitamins in its less processed forms.

Tapioca is also gluten-free, which makes it a popular choice for those with celiac disease or gluten sensitivities. It's commonly used in dishes like tapioca pudding, bubble tea, and as a thickening agent in various recipes.