Are onions high in sugars?

In this article, we will answer the question “Are onions high in sugars”? and discuss how it is beneficial and harmful to human health?

Are onions high in sugars?

Yes, onions do contain a high sugar content as they have a high carbohydrate percentage in a single onion. Even though onions are quite sweet they have some potential health benefits.

Vegetables, more than any other food category, are usually low in sugar and high in fiber, vitamins, and minerals.

Sugars found naturally in vegetables, fruit, and milk do not need to be restricted, although they do contribute to our daily total sugar intake.

A 100g of onion contains about 4.7g sugar content that makes up about 1.2 tablespoons, while a cooked onion contains about 9.9g of sugar that makes up about 2.5 tablespoons.

Nutritional facts about onions

The calories in raw onions are quite low, with only 40 calories per 3.5 ounces (100 grams).

Onions contain 89% water, 9% carbohydrates, and 1.7% percent fiber by weight, with trace quantities of protein and fat.

Raw onions provide the following nutrients in 3.5 ounces:

Calories: 40

Carbohydrates: 9.3g

Proteins: 1.1g

Sugars: 4.7g

Fiber: 1.7g

Fat: 0.1g

Water: 89% of the total Weight


Carbohydrates account for 9–10% of raw and cooked onions, respectively. Simple sugars like glucose, fructose, and sucrose, as well as fiber, make up the majority of their composition. The total digestible carb value of a 3.5-ounce (100-gram) serving is 7.6 g, including 9.3 g of carbohydrates and 1.7 g of fiber.


Onions are a good source of fiber, accounting for approximately 0.9–2.6 percent of the fresh weight depending on the variety. They’re high in fructans, which are beneficial soluble fibers. Onions are one of the most common sources of fructans in the diet. Fructans are prebiotic fibers that nourish the good microorganisms in your intestine. Short-chain fatty acids (SCFAs), such as butyrate, are formed as a result of this, which may enhance colon health, reduce inflammation, and lower the risk of colon cancer.

Minerals and Vitamins

Onions are high in a variety of minerals and vitamins, including:

·         Vitamin C is a powerful antioxidant. This antioxidant is necessary for immunological function as well as skin and hair upkeep.

·         Folate is a water-soluble B vitamin that is necessary for cell development and metabolism, especially in pregnant women.

·         B6 is a B vitamin, which may be found in most meals, aids in the production of red blood cells.

·         Potassium, this mineral is crucial for heart health and can decrease blood pressure.

Health benefits of Onions

Onions have been found to have anti-inflammatory and antioxidant effects.

1.    Blood sugar Regulation-regulate the blood sugar levels in the diabetic patients

2.    Bone health- onions reduce bone deterioration as well as increase bone mass.

3.    Reduces cancer risk by increased consumption of onions

Why Are Onions Good for Diabetes Management?

There are several reasons how onions help to manage diabetes ineffective ways:

  •    High fiber content- Onions, particularly red onions, are high in fiber. Fiber takes longer to digest and break down, resulting in a gradual release of glucose into the circulation. Fiber also gives your stool more volume, which may help you avoid constipation, which is a major problem among diabetics.
  • Less carb content- The glycaemic index is a number that meals (carbohydrates) are given depending on how fast or slowly they impact blood glucose levels. Raw onion has a glycaemic index of 10, making it an excellent low-GI item to include in a diabetic diet.

Diabetes-Friendly Diet

Fresh onions were found to lower blood glucose levels in type-1 and type-2 diabetics in a research published in the journal ‘Environmental Health Insights.’ Onions go well in soups, stews, sandwiches, and salads.

Check out the best onions for a salad.

Keep in mind that excess of anything is never a long-term plan for managing a health issue of any kind.

Magic Menu

Onions, like garlic, may be used in almost every recipe. Here are a few ideas to get you started.

·         Onions may be added to nearly any stew or stir-fry.

·         Combine chopped onions, tomatoes, avocado, and jalapeno peppers for blood sugar–friendly chip dip to get a bit of raw onion into your diet. Finish with a squeeze of lime.

·         Add chopped onions to corn, potatoes, or peas after sautéing them in olive oil.

·         Scallions, chopped, can be used in rice recipes.

·         Toss green salads with sliced onions.

·         Toss chopped onions into any sandwich salad, such as chicken, tuna, or egg salad, to add crunch.

·         Fruit chutney can be made with peaches, mangos, pears, apples, or apricots, as well as a large amount of chopped onion. Serve as a condiment with meals that won’t mess with your blood sugar levels.

·         Enjoy the French onion soup, but keep the bread and cheese topping to a minimum. Instead, toss in a couple of whole-grain croutons.

Other FAQs about Sugar that you may be interested in.

What can I substitute for sugar?

How to counteract too much sugar in a recipe?

What Can I Substitute for White Sugar in a recipe?


In this article, we answered the question “Are onions high in sugar?” and discussed how they are beneficial to health.


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