Difference Between Carbohydrates and Fats (with Comparison Chart)

carb vs fats Carbohydrates are soluble in water and are the most abundant dietary source of energy for all animation organisms, whereas fats are insoluble in water but soluble in alcohol, ether, etc. Fats are besides considered as a foreman store of energy .
Our body needs ample sum of energy to do ‘ work ’, which we get through macromolecules like carbohydrate and fats. Both of them provide department of energy to the body and are macronutrients which mean carbohydrates and fats are among top three sources of energy for a body .
Carbohydrates are the simplest form of sugars, which are absorbed by small intestine and then liver convert it to glucose ( human body of department of energy ) and send back to the bloodstream for providing energy to perform respective functions ; Fats and oils is widely portray in plants and animals are the esters of glycerol, which serves as a fuel modesty to the body.

Content: Carbohydrates Vs Fats

Comparison Chart

Basis for ComparisionCarbohydratesFats

CompositionCarbohydrate is the abundantly found organic molecule on earth and as the name suggest it is made up of carbon, hydrogen, and oxygen.Fats also have carboxylic acids with hydrocarbon side chains. They are the simplest form of Lipids.

SolubilityCarbohydrates are soluble in water.Fats are insoluble in water but soluble in the inorganic solvent like alcohol, ethanol.

SourcesThe main source of carbohydrate is table sugar, potatoes, bread, fruit juices, etc.Oils in vegetables, seeds, nuts and fats from animals are the primary source.

Where these are requiredCarbohydrate is required to provide energy or fuel to the body immediately after the intake of food.Fat is needed for the growth of our body, mainly the task of fat is to store energy and absorb essential

Required amountAt least 45-65 percentage of carbohydrate should be taken of the percentage of calorie intake.Around 20-35 percentage of intake of fat should be there.

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Calories Carbohydrate contains 4 calories/gram.Fat contains 9 calories/gram.

FunctionsAfter the consumption of food, carbohydrate is converted into glucose which is further used as energy for metabolism process.Fats helps in absorbing vitamins like A, D, E, K.

Fiber (undigestable) is a form of carbohydrate that helps in maintaining blood glucose level, cholesterol level, and mainly in removing waste from the body.Helps to regulate hormone production, in protecting cells, organs and helps in maintaining body temperature.

Definition of Carbohydrates

These are the most significant macromolecule of all. Carbohydrate is the organic atom having empirical convention as (CH2O)n, that is carbon, hydrogen, and oxygen as the main constituents. But, some may contain nitrogen, phosphate, or sulfur besides .
Their function is very critical, as apart from providing energy to the body, carbohydrate has some other functions besides like in serving as structural and protective elements to the cell walls of plants and bacteria, working as exoskeleton ( hard cover ) for arthropods, insects, lobster ( exoskeleton is made up of chitin, which is a kind of polysaccharide ) .

Types of carbohydrates

Carbohydrates can be categorized as simple and complex sugars. simple sugars have one or two units of sugars, while complex has three or more. On this basis they are divided into three types, which are :

  1. Monosaccharide
  2. Oligosaccharide
  3. Polysaccharide

1. Monosaccharide: These are the simplest shape of carbohydrate ( boodle ) as mono means ‘ one ’ and carbohydrate means ‘ sugar, ’ having the cosmopolitan recipe as ( CH2O ) north .
By a issue of carbon paper atoms present they are categorized as trioses ( 3C ), tetroses ( 4C ), pentoses ( 5C ), hexoses ( 6C ), and heptoses ( 7C ). Along with running group ( aldoses and ketoses ) salute, they are named as aldohexose ( Glucose ) and Ketohexose ( Fructose ) .
2. Oligosaccharide: Oligo means ‘ few, ’ these contain small units of monosaccharides varying from 2 to 10, linked by the glycosidic adhere. Oligosaccharides besides come under simpleton sugars.

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Disaccharides are the most common mannequin of oligosaccharide, containing two units of monosaccharides. Maltose, Lactose, Sucrose, etc, are the examples of the disaccharide .
3. Polysaccharides: As Poly means ‘ many, ’ so molecules having 10 or more repetitive units of monosaccharide linked by the glycosidic bond are categorized under this. Polysaccharides are said to be a complex sugar. Starch, Glycogen, Cellulose are few examples of it .
They are of two types : Homopolysaccharide and Heteropolysaccharide .

  • Homopolysaccharide consists of same units of sugar molecule linked by glycosidic bonds. An example is Cellulose.
  • Heteropolysaccharide consists of different type of sugar units. Heparin is heteropolysaccharide.

Definition of Fats

Fats are said to be the simplest form of lipids having carboxyl acids with the side chain of the hydrocarbon. The chemical appoint of fats and oils is ‘Triglycerols’, they are said to the derived function of hydrocarbons and esters of fatso acids with glycerol .
Fats and oils are not polymers, but modest molecules which are insoluble in urine but soluble in organic solvents like alcohol, ether, etc. The elementary function of fat is to store energy .

Types of Fats

Fats are classified into 2 types : –

  1. Saturated fatty acids
  2. Unsaturated fatty acids

1. Saturated fatty acids: They do not have the duplicate bind between carbon atoms. These are normally upstanding at room temperature, can be found in bolshevik kernel, milk products, and decoration equally well as in coconut vegetable oil. Examples : Palmitic acerb, Stearic acerb, etc.
2. Unsaturated fatty acids: They have bivalent bonds between carbon atoms. These are found in olive oil, Peanut oil, Walnuts, etc. Oleic acid, Linoleic acid, etc are the exemplar of unsaturated fatty acids .
Fatty acids having only one double bond are called as monounsaturated ( MUFA ), while those having two or more doubly bonds are said to be polyunsaturated fatty acids ( PUFA ). These are fluid at board temperature and seems to lower the rates of heart diseases.

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Key Differences Between Carbohydrates and Fats

  1. Though both carbohydrate and fats are the sources of energy, the key difference is that carbohydrate provides instant energy after intake of food, but fats help in storage of energy, apart from this fats provide protection to vital organs, cell membranes and also helps in regulation of hormones.
  2. Carbohydrate can be classified by the number of sugar units present in them, whereas Fats are classified by bonds, either single or double.
  3. Carbohydrates are precursors of many organic compounds like fats and amino acids; Fats serves as a source of fat-soluble vitamins (A, D, E, and K).
  4. Carbohydrates in the form of glycoproteins and glycolipids help in cell growth, adhesion, and other functions. Fats also help in maintaining proper body temperature.


Carbohydrates and fats play a critical role in providing energy ; both of them has equal importance excessively, in nature. however it is said that we should not consume much fatty, but it is equally authoritative as compared to carbohydrate because aside from providing department of energy fats helps in normal soundbox growth besides .
These macro nutrients can not be produced by our body on its own. Hence, these should be obtained by having a dear and healthy diet which are deep in carbohydrate and fats like fruits, vegetables, rice, seeds, etc .