List of macronutrients

Steam and liquid water are two different forms of the same chemical (pure) substance: water.

Categorization of the most common food components based on their macronutrients.

- List of macronutrients
Steam and liquid water are two different forms of the same chemical (pure) substance: water.

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Steam and liquid water are two different forms of the same chemical (pure) substance: water.

Nutrient

Substance used by an organism to survive, grow, and reproduce.

Substance used by an organism to survive, grow, and reproduce.

Steam and liquid water are two different forms of the same chemical (pure) substance: water.

A classification used primarily to describe nutrient needs of animals divides nutrients into macronutrients and micronutrients.

Foods high in magnesium (an example of a nutrient)

Human nutrition

Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health.

Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health.

Foods high in magnesium (an example of a nutrient)
Grain products: rich sources of complex and simple carbohydrates
Proteins are chains of amino acids found in many nutritious foods. Pictured above is a computer rendering of myoglobin, a protein found in muscles.
A manual water pump in China
Colorful fruits and vegetables may be components of a healthy diet.
New York National Guard Assisting Volunteers packing turkeys for families facing food insecurity.
MyPlate Game
Hippocrates lived in about 400 BC, and Galen and the understanding of nutrition followed him for centuries.
Anaxagoras
Followed for a millennium and a half, Galen (1st century) created the first coherent (although mistaken) theory of nutrition.
James Lind conducted in 1747 the first controlled clinical trial in modern times, and in 1753 published Treatise on Scurvy.
By containing his assistant, Armand Seguin, inside a rubber suit fitted with a tube sealed to his mouth with putty, Antoine Lavoisier first measured basal metabolic rate. Drawing by Madame Lavoisier (seated at right).
Takaki Kanehiro surmised that beriberi was a nutritional deficiency not an infectious disease.
Carl von Voit has been called the father of modern dietetics.

List of macronutrients

An example of a high fiber vegan breakfast

Diet in diabetes

Diet that is used by people with diabetes mellitus or high blood sugar to minimize symptoms and dangerous complications of long-term elevations in blood sugar .

Diet that is used by people with diabetes mellitus or high blood sugar to minimize symptoms and dangerous complications of long-term elevations in blood sugar .

An example of a high fiber vegan breakfast

To date there is no consensus that eating a diet consisting of any particular macronutrient composition (i.e.: the ratio of fat, protein, and carbohydrate in the diet) is more beneficial for diabetics.

The Rod of Asclepius, a symbol commonly associated with medicine

Outline of medicine

Provided as an overview of and topical guide to medicine:

Provided as an overview of and topical guide to medicine:

The Rod of Asclepius, a symbol commonly associated with medicine
An Arabic manuscript, dated 1200 CE, titled Anatomy of the Eye, authored by al-Mutadibih.

List of macronutrients

Nina Teicholz

Nina Teicholz (born May 7, 1965) is a journalist who advocates easing restrictions on naturally-occurring fats, including so-called "saturated" (i.e., stable) fats, in the American diet.

Cerebellum (labeled bottom right) of the human brain. It is located above the brain stem, posterior to the brain.

Cerebellar degeneration

Condition in which cerebellar cells, otherwise known as neurons, become damaged and progressively weaken in the cerebellum.

Condition in which cerebellar cells, otherwise known as neurons, become damaged and progressively weaken in the cerebellum.

Cerebellum (labeled bottom right) of the human brain. It is located above the brain stem, posterior to the brain.
Diplopia is a symptom that individuals with cerebellar degeneration may experience.
Diagram of two different nerve cells. The diagram on the left shows a nerve cell that is healthy and normally-functioning. The diagram on the right shows a nerve cell with a damaged myelin sheath, being the cause of multiple sclerosis.
Magnetic resonance imaging scans of two different brains. The scan of the brain on the left indicates a weakened, deteriorated cerebellum of a human with cerebellar degeneration. The scan of the brain on the right indicates a healthy, normally-functioning cerebellum of a human.

Nutritional deficiency relates to an insufficient amount of macronutrients and micronutrients being provided to the body.