Is Starch A Sugar? Get Your Answer Here

Typically, sugars and starches are two forms of carbohydrates found in food. They usually comprise carbon, hydrogen, and oxygen, which organize themselves in an easy ratio of CH2O. So, is starch a sugar? No, it isn’t. You may ask why.

Well, starch is categorized as a complex carbohydrate. That’s because it contains numerous sugar molecules put together. It doesn’t make it sugar.

Well, if you have ever been confused about that, you will gain clarity in this article. You will also learn about what differentiates starch from sugar.

What is starch?

Starch is simply a complex carbohydrate. It is contained in many foods, such as grains, vegetables, and fruits. Specifically, the major sources of starch are maize, tapioca, wheat, and potatoes.

When pure starch is extracted from food products, it produces a white, tasteless, and odorless powder that does not melt in alcohol or cold water.

Starchy foods serve as an essential part of a balanced diet. That’s because they provide your body with energy and fiber and give you a sense of fullness. The body cracks down starch molecules into glucose, which is the basic source of energy for the body.

For most individuals, it is safe to consume starchy foods, as it presents no threats or side effects. However, if you have been diagnosed with diabetes or CSID, you should consider the consumption of starch carefully.

Also, starch is a natural polysaccharide. Therefore, it comprises one type of molecule known as glucose molecules. However, this molecule can occur in two forms. They are – amylose and amylopectin.

SEE: Find Out Here if Cornstarch Go Bad After a Long While

What is sugar?

Sugar is a disaccharide; that is, it is made up of two sugars (glucose and fructose) combined. These sugars are typically made by and present in the sap of all green plants. The sugar in the food supply is cultivated from sugar beets and sugar cane.

Sugar is also any of the numerous sweet, colorless, water-soluble compounds found in the milk of mammals. It makes up the simplest group of carbohydrates. Sugar is present in all foods with carbohydrates in them, such as fruit, grains, dairy, and vegetables.

All of these carbs are made up of three simple sugars; glucose, fructose, and galactose. These are monosaccharides.

The most popular sugar is sucrose (it is made up of fructose and glucose), a crystalline tabletop and industrial sweetener utilized in foods and beverages.

However, there are many types of sugar. Each of them has its level of sweetness and calorie content. Lactose, on other hand, is made up of glucose and galactose.

Is starch a sugar?

No, starch is not sugar. Starch is starch, and sugar is sugar. Starch is polymerized sugar. That is, it is broken down and used as sugar. However, that doesn’t make starch sugar. It makes it a carbohydrate.

Sugar and starch are two different types of carbohydrates present in plants and animals. Besides, there are three categories of carbohydrates identified; monosaccharides, disaccharides, and polysaccharides.

These categories are made up of three atoms. They include carbon (C), hydrogen (H), and oxygen (O).

Autotrophs manufacture the simple monosaccharide glucose from water and carbon dioxide during photosynthesis. Two monosaccharides combined produce disaccharides, whereas polysaccharides are formed by the combination of a large number of glucose monomers together.

That is, starch is different from sugar, and so is not sugar because sugars are disaccharides or monosaccharides, and, in contrast, starch is a polysaccharide.

What is the difference between starch and sugar?

Asides from starch being a polysaccharide and sugar being either a monosaccharide or a disaccharide, starch can be further absorbed into simple sugars, unlike the monosaccharide type of sugar. The other things that differentiate starch from sugar are:

  • As regards the number of monomers, in sugar, monosaccharides comprise a single monomer, and disaccharides are made up of two monomers. In contrast to that, starch comprises 300 to 1,000 glucose molecules.
  • Sugars are less complex than starch.
  • In addition, sugars are quickly absorbed by the digestive tract of organisms, whereas starch is slowly absorbed.
  • Sugars increase blood glucose levels quickly, but the reverse is the case for starch. Starch increases blood glucose levels slowly.
  • Starch is made up of long chains of simple sugar called glucose, whereas sugar can be made up of either a single sugar molecule or two simple sugar molecules linked together by a glycosidic bond.
  • The two types of starch are amylose and glycogen, while the two types of sugars are monosaccharides and disaccharides.
  • Polymerization (the bonding together) of simple sugars (glucose) forms the starch.
  • Starch is like the storehouse of energy, but sugar is the direct source of energy.
  • Starch doesn’t have a sweet taste, but sugar does.
  • Sugar has a single or no glycosidic bond. On the other hand, starch has many glycosidic bonds.

What kind of carbs are sugar and starch?

Carbohydrates are categorized into two different types; sugars and starch. Foods such as bread, rice, pasta, potatoes, and breakfast cereals are classified as starchy carbohydrates. Meanwhile, sugars include those that naturally occur in fruit and milk.

Also, added sugars used in cakes and biscuits as well as table sugar, are classified as sugar carbohydrates. These two types of carbohydrates turn into glucose in your body when you eat them, notwithstanding if it’s in the form of a slice of bread or a plate of rice.

Is tapioca starch a sugar?

No, it isn’t. Tapioca starch is extracted from cassava root, which is classified as a starchy carb.

It consists of almost pure carbs and has only a little protein content, little fiber, and a little number of other nutrients.

SEE: Amazing Foods That Start With T

Is potato starch a sugar?

No, it isn’t. Traditional white potatoes are not a food that is considered sweet or sugary. But then, potatoes are almost all starch, so they are made up of long strings of glucose.

Since the starch in potatoes digests immediately, the glycemic index of potatoes can virtually be as high as that of glucose alone.

SEE: Get Discounted Potato Olés At Taco John’s Breakfast Hours

Is maize starch a sugar?

No, it is not. Maize starch is made by grating dry corn and soaking it in water. After the starch dissolves into the water, it leaves all the rough bits of corn behind. After the water is dried out, what is left with a fine white powder called maize starch, or corn starch.

Is modified food starch a sugar?

Honestly, this question has no direct answer. There are many ways to modify starch for use in processed foods.

It could be treated with several acids such as hydrochloric acid or many different bases such as lye, bleaching agents such as peroxide, esters, oxides, or salts.

Each of these various treatments modifies the starch in different ways to give it unique properties.

Using these chemicals, you can use modified food starch to thicken sauces; it can serve as a substitute for fat in low-fat foods to keep the thickness more like the full-fat version.

Also, you can use it to keep defrosted frozen foods from dripping water and to make things stickier.

Regardless of the type of treatment, it is still not sugar but is simply labeled as modified food starch.

SEE: Get A Chance To Win $1000 or $100


Is starch a reducing sugar?

No, it is not. Starch does not promote a free aldehyde or keto group. Therefore, starch is evaluated as a non-reducing sugar.

Is sugar bad for you?

Yes, too much sugar can be one of the biggest threats to cardiovascular disease. Consumption of added sugar can cause higher blood pressure, fatty liver disease, inflammation, weight gain, and diabetes.

These are all linked to an increased risk of heart attack and even stroke.

Is starch bad for you?

No, starch is not bad for you. In particular, starchy foods are a good source of energy and a range of nutrients in your diet. In addition to starch, they contain fiber, calcium, iron, and vitamin B.

You may think starchy foods are fattening, but gram for gram, these foods contain fewer than half the calories of fat.

But then, diets high in refined starches have been linked to a higher risk of diabetes, heart disease, and weight gain. So, to be on the safe side, it must be consumed in moderation.


Sugar and starch are both carbs. They are categorized into monosaccharides, disaccharides, and polysaccharides. Monosaccharides and disaccharides are water-soluble; that is, they can dissolve in water.

This is why they are sweet. Sweet carbohydrates are sugars. Hence, monosaccharides like glucose, fructose, and galactose as well as the disaccharides such as sucrose, maltose, and lactose are sugars.

On the other hand, starch is a polysaccharide comprised of a large number of glucose monomers joined together.

Having explained both substances, you and I can conclude that the major difference between sugar and starch is their structure. This has not just answered the question; is starch a sugar? It has also given you accurate facts to back up the answer.

Thank you for reading.

To follow up on more interesting articles like this, I’ll advise you consistently visit Cheffist.