Overview
This lecture discusses staple foods worldwide, their nutritional importance, and common substitutes for key crops.
Definition and Role of Staple Foods
- Staple foods are regularly consumed foods that provide energy, mainly through carbohydrates.
- Carbohydrates are the body's main energy source, similar to fuel for cars.
- Eating only one staple food does not provide all required nutrients.
- A varied diet is necessary for complete nourishment.
Common Staple Crops Around the World
- Cassava: A root vegetable staple in Latin America, the Caribbean, and Africa; must be cooked and mashed for consumption.
- Corn: Eaten as a vegetable or processed into oil, syrup, and starch; grits, cornmeal, and cornflakes are common derivatives.
- Plantains and Bananas: Belong to the same family; plantains must be cooked and are starchier and less sweet than bananas.
- Potatoes: Grown and consumed worldwide; available year-round and come in several varieties.
- Rice: Staple food for over half the world's population.
- Sorghum: Main grain in Guinea, used for bread and sweet syrup.
- Soy: Majorly produced in the US, Brazil, and Argentina; used in beverages, tofu, and meat substitutes.
- Wheat: 65% of harvested wheat is used for food; used in breads, pasta, and noodles.
- Yams: Staple in West Africa; boiled and made into dough called fufu, which can also be made from cassava and plantains.
Substitutes and Alternatives
- Cassava can be replaced by wheat flour, potato starch, tapioca flour, or corn flour.
- Plantains can be substituted with green bananas, cassava, or potatoes.
- Canned or frozen corn can be used instead of fresh corn.
Key Terms & Definitions
- Staple food — A basic food eaten regularly and in large quantities, forming a major part of a standard diet.
- Carbohydrate — Nutrient providing energy, found primarily in staple foods like rice, potatoes, and corn.
- Cassava — Root vegetable providing carbohydrates, common in tropical regions.
- Fufu — Gelatinous dough made from yams, cassava, or plantains, eaten in West Africa.
Action Items / Next Steps
- Try substituting staple foods with their alternatives in recipes.
- Ensure your diet includes a variety of staple foods for balanced nutrition.