Here's how they contribute:
* Carbohydrates: The body's primary energy source. They break down into glucose, which is used by cells for fuel.
* Fats: A concentrated source of energy, providing more calories per gram than carbohydrates. They also help with insulation, hormone production, and cell function.
* Proteins: While they are primarily used for building and repairing tissues, proteins can also be used for energy when carbohydrates and fats are limited.
Nutrients that help the body absorb other nutrients:
While no single nutrient is solely responsible for absorption, several play crucial roles:
* Fats: Help with the absorption of fat-soluble vitamins (A, D, E, and K).
* Fiber: While not technically a nutrient, fiber helps with digestion and can improve the absorption of other nutrients.
* Water: Essential for dissolving and transporting nutrients throughout the body.
* Certain minerals: For example, iron is needed for the absorption of vitamin B12.
It's important to remember that these nutrients work together to support the body's functions. A balanced diet that includes all the essential nutrients is key for optimal health.
