Nutrition vs. Digestion — What's the Difference?

Nutrition is the biochemical and physiological process by which an organism uses food to support its life. It includes ingestion, absorption, assimilation, biosynthesis, catabolism and excretion.The science that studies the physiological process of nutrition is called nutritional science (also nutrition science).

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.

The process of nourishing or being nourished, especially the process by which a living organism assimilates food and uses it for growth and for replacement of tissues.

The process by which food is converted into substances that can be absorbed and assimilated by a living organism. In most animals it is accomplished in the digestive tract by the mechanical and enzymatic breakdown of foods into simpler chemical compounds.

The science or study that deals with food and nourishment, especially in humans.

The ability to digest food.

A source of nourishment; food.

(Biochemistry) The process of decomposing complex organic substances into simpler substances, as by the action of enzymes or bacteria.

(biology) The organic process by which an organism assimilates food and uses it for growth and maintenance.

(Chemistry) The process of softening or disintegrating by means of chemical action, heat, or moisture.

That which nourishes; nutriment.

Assimilation of ideas or information; understanding.

In the broadest sense, a process or series of processes by which a living organism as a whole (or its component parts or organs) is maintained in its normal condition of life and growth.

The process, in the gastrointestinal tract, by which food is converted into substances that can be utilized by the body.

In a more limited sense, the process by which the living tissues take up, from the blood, matters necessary either for their repair or for the performance of their healthy functions.

The result of this process.

That which nourishes; nutriment.

The ability to use this process.

(physiology) the organic process of nourishing or being nourished; the processes by which an organism assimilates food and uses it for growth and maintenance

The processing of decay in organic matter assisted by microorganisms.

A source of materials to nourish the body

The assimilation and understanding of ideas.

The scientific study of food and drink (especially in humans)

Generation of pus; suppuration.

(chemistry) Dissolution of a sample into a solution by means of adding acid and heat.

The act or process of digesting; reduction to order; classification; thoughtful consideration.

The conversion of food, in the stomach and intestines, into soluble and diffusible products, capable of being absorbed by the blood.

Generation of pus; suppuration.

The process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat

The organic process by which food is converted into substances that can be absorbed into the body

Learning and coming to understand ideas and information;