Where is starch commonly found?

Starch is a complex carbohydrate predominantly found in plant-based foods, making vegetables a primary source. In plants, starch serves as a significant energy reserve. Common examples of starchy vegetables include potatoes, corn, and peas. These foods are known for their higher carbohydrate content due to the storage form of energy.

While other food groups contain carbohydrates, they do not typically contain starch. Nuts primarily provide fats and proteins, meat is largely composed of proteins and fats without significant carbohydrate content, and dairy products mainly contain lactose, a simple sugar rather than starch. Thus, vegetables are the most appropriate choice for a source of starch among the given options.