Fat

greasetotal fatdietary fatfatty oildietary fatsfatsfats and oilsanimal fatsbeef fatchip fat
Fats are one of the three main macronutrients, along with carbohydrates and proteins.wikipedia
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Nutrient

nutrientsessential nutrientmacronutrient
Fats are one of the three main macronutrients, along with carbohydrates and proteins.
Consumed in relatively large amounts (grams or ounces), macronutrients (carbohydrates, fats, proteins, water) are used primarily to generate energy or to incorporate into tissues for growth and repair.

Lipid

lipidsglycerolipidfat
The terms lipid, oil, and fat are often confused.
Although the term "lipid" is sometimes used as a synonym for fats, fats are a subgroup of lipids called triglycerides.

Hydrophobe

hydrophobichydrophobicityhydrophobic interaction
Fat molecules consist of primarily carbon and hydrogen atoms and are therefore hydrophobic and are soluble in organic solvents and insoluble in water.
Examples of hydrophobic molecules include the alkanes, oils, fats, and greasy substances in general.

Lipase

lipaseslipase LIPFE1104
Fats and other lipids are broken down in the body by enzymes called lipases produced in the pancreas.
A lipase is any enzyme that catalyzes the hydrolysis of fats (lipids).

Saturated fat

saturated fatty acidsaturatedsaturated fats
Fats that are saturated fats have no double bonds between the carbons in the chain.
A saturated fat is a type of fat in which the fatty acid chains have all or predominantly single bonds.

Polyunsaturated fat

polyunsaturatedpolyunsaturated fatty acidspolyunsaturated fats
Some oils and fats have multiple double bonds and are therefore called polyunsaturated fats.
Polyunsaturated fats are fats in which the constituent hydrocarbon chain possesses two or more carbon–carbon double bonds.

Unsaturated fat

unsaturatedunsaturated fatty acidsunsaturated fatty acid
Unsaturated fats have one or more double bonded carbons in the chain.
An unsaturated fat is a fat or fatty acid in which there is at least a single double bond within the fatty acid chain.

Lard

pork fatpig fatanimal
For example, animal fats tallow and lard are high in saturated fatty acid content and are solids.
Lard is fat from a pig, in both its rendered and unrendered forms.

Tallow

beef tallowbeef fattallow cups
For example, animal fats tallow and lard are high in saturated fatty acid content and are solids.
Tallow is a rendered form of beef or mutton fat, and is primarily made up of triglycerides.

Oil

oilsoil solutionoil and oil products
The terms lipid, oil, and fat are often confused.
Several edible vegetable and animal oils, and also fats, are used for various purposes in cooking and food preparation.

Vitamin E

EHypervitaminosis EVitamins E
Vitamins A, D, E, and K are fat-soluble, meaning they can only be digested, absorbed, and transported in conjunction with fats.
Vitamin E deficiency, which is rare and usually due to an underlying problem with digesting dietary fat rather than from a diet low in vitamin E, can cause nerve problems.

Essential fatty acid

essential fatty acidsessentialEssential fatty acid deficiency
There are two essential fatty acids (EFAs) in human nutrition: alpha-linolenic acid (an omega-3 fatty acid) and linoleic acid (an omega-6 fatty acid).
When the two EFAs were discovered in 1923, they were designated "vitamin F", but in 1929, research on rats showed that the two EFAs are better classified as fats rather than vitamins.

Ester

estersesterificationmonoester
Most fats are glycerides, particularly triglycerides (triesters of glycerol).
In nature, fats are in general triesters derived from glycerol and fatty acids.

Adipocyte

adipocytesfat cellsfat cell
Adipocytes (fat cells) store fat derived from the diet and from liver metabolism.
Adipocytes, also known as lipocytes and fat cells, are the cells that primarily compose adipose tissue, specialized in storing energy as fat.

Insulin

insulin geneINShuman insulin
These metabolic activities are regulated by several hormones (e.g., insulin, glucagon and epinephrine).
It regulates the metabolism of carbohydrates, fats and protein by promoting the absorption of carbohydrates, especially glucose from the blood into liver, fat and skeletal muscle cells.

Metabolism

metabolicmetabolizedmetabolic pathways
Adipocytes (fat cells) store fat derived from the diet and from liver metabolism.
Most of the structures that make up animals, plants and microbes are made from three basic classes of molecule: amino acids, carbohydrates and lipids (often called fats).

Glucose

dextroseD-glucose D -glucose
Glycerol itself can be converted to glucose by the liver and so become a source of energy.
In fat cells, glucose is used to power reactions that synthesize some fat types and have other purposes.

Vitamin K

KMenaquinoneVitamin K 1
Vitamins A, D, E, and K are fat-soluble, meaning they can only be digested, absorbed, and transported in conjunction with fats.
Vitamin K 1 is found chiefly in leafy green vegetables such as spinach, swiss chard, lettuce and Brassica vegetables (such as cabbage, kale, cauliflower, broccoli, and brussels sprouts) and often the absorption is greater when accompanied by fats such as butter or oils.

Skin

cutaneousskin cellanimal skin
Fats play a vital role in maintaining healthy skin and hair, insulating body organs against shock, maintaining body temperature, and promoting healthy cell function.
Fat serves as padding and insulation for the body.

Vitamin

vitaminsfat-soluble vitaminsfat-soluble vitamin
Vitamins A, D, E, and K are fat-soluble, meaning they can only be digested, absorbed, and transported in conjunction with fats.
He fed mice an artificial mixture of all the separate constituents of milk known at that time, namely the proteins, fats, carbohydrates, and salts.

Insulin resistance

insulin sensitivityresistantinsulin resistant
One of these is resistin which has been linked to obesity, insulin resistance, and Type 2 diabetes.
Certain cell types such as fat and muscle cells require insulin to absorb glucose and when these cells fail to respond adequately to circulating insulin, blood glucose levels rise.

Vitamin A

Avitamins ARAE
Vitamins A, D, E, and K are fat-soluble, meaning they can only be digested, absorbed, and transported in conjunction with fats.
In 1912, Frederick Gowland Hopkins demonstrated that unknown accessory factors found in milk, other than carbohydrates, proteins, and fats were necessary for growth in rats.

Carbohydrate

carbohydratessaccharidecomplex carbohydrates
Fats are one of the three main macronutrients, along with carbohydrates and proteins.

Protein

proteinsproteinaceousstructural proteins
Fats are one of the three main macronutrients, along with carbohydrates and proteins.

Cholesterol

total cholesteroldietary cholesterolserum cholesterol
Examples include cholesterol, phospholipids, and triglycerides.