Onions are often eaten by ketogenic dieters due to their low carb content, but many people don’t know that they also contain carbohydrates. Carbohydrates can only be found in the white flesh of onions and should not be mistaken for cellulose.

Onions are a type of vegetable that contains carbohydrates. However, onions do not contain a significant amount of carbs and are considered to be keto friendly. Read more in detail here: is onion keto friendly.

Are Onions Keto? Carbs in Onions

This article includes affiliate links, and if you buy anything via our site, we may get a small profit.

Do you want to know whether onions are allowed on a keto diet? Continue reading to see how many carbohydrates onions contain and how much onion to include in your daily keto diet plan. Finally, we’ll show you how to make some of our favorite keto onion dishes.

can you eat onions on a keto diet carbs in onioncan you eat onions on a keto diet carbs in onion

Onions are one of the world’s most widely eaten veggies. It’s tough to find a meal for supper or lunch that doesn’t use onions. Onions provide a lot of flavor and texture to dishes. What about onions, however, if you’re on a ketogenic diet? Is it okay to consume onions when on a ketogenic diet?

Is it Possible to Eat Onions on a Keto Diet?

Onions are keto-friendly and may be used in a variety of dishes. Because onions contain more carbs than other vegetables, they are not a good option for keto. Fortunately, there are a few things you can do to enjoy onions while on the keto diet.

If you’re on the keto diet and want to consume onions, keep track of your carbs and adhere to your daily carb allowance. On a keto diet, I suggest restricting total carbs to 50 or less per day. 

Reduce the quantity of onion in your dishes if you want to make sure they don’t have too many carbs. So, in order to figure out how much onion we may consume on a keto diet, we must first figure out how many carbs onions contain, which you can find out more about below.

Onions Have How Many Carbs?

Onions, like carrots, are often used in dishes or salads, so you don’t have to be concerned about carbohydrates in onions if you eat them in moderation. 

One medium onion (110g), according to the USDA website, provides:

  • 44 calories
  • Carbohydrates: 10.3 g
  • 1.87 g of fiber
  • 8.43g net carbs
  • 1.21 g protein

Because the carb content of an onion varies depending on its size, obtain a food scale to precisely calculate your keto macros.

carbs in onionscarbs in onions

Carbs made from yellow onions

If you use a modest quantity in dishes, yellow onion is keto-friendly.

So, 1/2 of a medium yellow onion has 6.2 grams of total carbohydrates and 4.8 grams of net carbohydrates.

On Keto, Pickled Onions

Pickled onions are a delicious complement to a variety of nutritious dishes, and they’re allowed on the keto diet in moderation:

Pickled onions give the following nutrients in a single serving (25g):

  • 18 calories
  • Carbohydrates: 4.2 g
  • Net Carbohydrates: 4.2 g

Carbohydrates in Shallots

Shallots are widely used in recipes in the same manner as onions are. They have an onion taste, but it’s a lot milder and sweeter.

100g shallots, raw provide: 

  • 72 calories per gram
  • Carbohydrates: 16.8 g
  • 3.2 g fiber
  • 13.6g net carbs

onions on keto dietonions on keto diet

On Keto, Green Onions

Green onions, commonly known as scallions, are a great onion substitute since they have half the sugar of onions while still tasting great.

One medium green onion (containing the green section and bulb) has the following ingredients:

  • 4.8 g calories
  • Carbohydrates: 1.1 g
  • 0.39 g fiber
  • 0.72g net carbohydrates

On Keto, Red Onions

The red onion, which has a greater net carb content, should be consumed in small quantities.

So, here are the nutrition information for one half of a red onion (98.5g): 

  • 43 calories
  • Carbohydrates: 9.3 g
  • 2.1 g fiber
  • 7.2g net carbohydrates

Are Keto Onion Rings a Thing?

Because they are covered in a wheat flour batter and then in panko or breadcrumbs, typical onion rings are not keto-friendly. A meal usually contains more than 40 grams of net carbohydrates, which may quickly knock you out of ketosis.

What Is The Best Way To Eat Onions?

  1. To prevent scorching them, cook them at a low temperature.
  2. Shred the onion instead of slicing it in a circle. If you do it this manner, the taste will be preserved.
  3. It’s best to avoid caramelizing onions since they’ve been known to elevate blood sugar levels. Only consume raw or slightly cooked onion on a keto diet.

onions on keto dietonions on keto diet

Onion Health Advantages

  1. Onions are high in vitamin C, which aids in the prevention of free radicals, which are one of the leading causes of cancer.
  2. Reduce your risk of heart disease and stroke.
  3. Onions have been shown in studies to have a high potential for increasing the efficiency of nutrient absorption from the intestines.
  4. Antibacterial properties are found in onions. 

Onion Purchasing and Storage

Onions are accessible throughout the year. Fresh, frozen, canned, pickled, powdered, or dried are all options.

Choose fresh onions that are clean, well-contoured, have no openings on the edges, are crisp, and have a dry outer shell when purchasing them.

Onions with black mold symptoms should be avoided since they suggest that the stock is old or in poor shape.

At home, keep the onions fresh for a few weeks by storing them in a cool, dry location away from moisture. They keep nicely in the refrigerator as well.

Onion Keto Recipes at their Finest

Now is the time to subscribe!

To be the first to hear about new recipes, changes, and special discounts, sign up for our weekly email.

Thank you very much!

You have successfully subscribed to our our list.



The whole recipe may be found on the recipe card below. These recipes were created by readers who enjoyed this article:

Onions are not keto vegetables. Onions contain carbs, which can make it difficult to stay in ketosis.

  • are purple onions keto friendly
  • are sauteed onions keto friendly
  • carbs in onions cooked
  • are yellow onions keto friendly
  • can you eat fried onions on keto
You May Also Like

Positive Psychology Heals Inflammation – Simple Health: Customized effective Naturopathic care and programs

“Positive psychology is the study of positive human and animal emotions, as…

10 Actually Useful Yoga Stocking Stuffers Ideas Under $35 [Gift Ideas For Yoga Lovers 2021] — Yoga Kali

This article will list 10 actually useful yoga stocking stuffers that are…

Bulletproof Coffee Recipe – Low Carb Spark

A delicious and healthy low carb coffee recipe that wakes up your…

Which Yoga Is Best For Beginners? — Yoga Kali

Yoga Kali is an alternative to your regular yoga class, a way…