Videos: The process of digestion

Videos: The process of digestion

Discover the process of digestion.

Energy

Explore the needs and requirements for energy in the diet.

Nutrients

Explore the needs and requirements for nutrients in the diet.

Dietary fibre and water

Explore the needs for dietary fibre and water.

Alcohol

Explore the effect of alcohol in the diet.

Nutritional needs

Explore different nutritional needs.

The digestion process

Explore the digestion of food.

Elimination

Summary points:

The body can take up to three days to digest food.

The key organs involved are the mouth, stomach, small and large intestines.

The four stages of digestion are:

1) ingestion;

2) digestion;

3) absorption;

4) elimination.

The bacteria in the colon break down food residues.

Water is absorbed.

The colon prepares the waste for elimination.

Ingestion

In this short video clip you will see what happens to food in the mouth.

Digestion

In this short video clip you will see how the stomach works.

Absorption

In this short video clip you will see how the body absorbs nutrients from food.

Elimination

In this short video clip you will see inside the colon.