People who follow theketogenic, or keto, dieteat a mixture of high-fat, moderate-protein, and very low-carb foods. Usually, the body gets energy from carbs and fats. In contrast, the keto diet focuses on getting the most energy from high-fat foods.
Vegetables like bell peppers, mushrooms, and tomatoes can be great for the keto diet since they have few carbs.In contrast, carrots, corn, green peas, and white potatoes are not keto-friendly since they contain a lot of starch, a type of carb.
A low level of carbs sends your body into ketosis, or when the body burns ketones instead of sugar from carbs. Ketones are an energy source of fat. The body stays in ketosis as long as it does not have access to a lot of sugar.
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Vegetables contain many nutrients without a lot of calories. Vegetables have fiber, essential vitamins, minerals, and phytonutrients, making them excellent choices for a healthy diet.
To eat vegetables in a keto diet, limit those that contain a lot of carbs, like potatoes, corn, and peas. Instead, up your intake of non-starchy vegetables.
Arugula
Carbs: 3g
Arugula, known as rocket, is a leafy green with a peppery flavor. One four-cup serving of fresh arugula contains three grams of carbs.
Arugula is an excellent source of calcium, a mineral essential for strong bones and teeth. Arugula contains vitamins A and C, too. Vitamin A supports vision, the immune system, and organ functioning. Vitamin C helps heal wounds, absorbs iron, and supports the immune system.
Arugula has carotenoids, flavonoids, and phenolic compounds. Those compounds are antioxidants, which slow down or prevent cell damage. Some evidence suggests that antioxidants help prevent and protect against health conditions, such as:
- Heart disease
- Obesity
- Some cancers
- Ulcers
- Viral or bacterial infections
Asparagus
Carbs: 2g
Four spears of cooked asparagus contain two grams of carbs, making it an excellent choice for people on the keto diet.
Asparagus is known as the "king of vegetables," partly because of its potential health benefits. Research has found that asparagus, in different forms like the vegetable itself or powders, helps with insomnia, high blood pressure, and stress.
Asparagus contains protein, which comes with essential amino acids. Amino acids, the foundation for proteins, help break down food and repair tissues.
Asparagus is a good source of fiber and vitamins A, C, and E. Asparagus is more than 50% water, which may help to prevent urinary tract infections (UTIs). The water content can help flush fluids out of the body.
Bell Peppers
Carbs: 7g
Bell peppers are another low-carb option, with seven grams in one medium bell pepper.
One medium red bell pepper contains the following nutrients:
- Calcium:8mg
- Magnesium:14mg
- Fiber:2.5g
Bell peppers have more vitamin C than oranges. One serving of red bell peppers has 95 milligrams of vitamin C, 106% of the recommended daily intake.
Bell peppers pack vitamins A and E and antioxidants. Research has found that bell peppers have anti-inflammatory, antidiabetic, and antimicrobial properties. The vegetable might help regulate your immune system, as well.
Broccoli
Carbs: 8g
One medium stalk of broccoli contains 45 calories and eight grams of carbs.
Like other cruciferous vegetables, broccoli is an excellent source of nutrients, including:
- Calcium
- Folic acid
- Magnesium
- Potassium
- Selenium
- Vitamin C
- Vitamin K
Broccoli packs flavonoids, which are natural substances with antioxidant properties. Flavonoids can get rid of fungi, viruses, and bacteria.
Broccoli can help keep you hydrated since they are about 70% water. The nutrients found in broccoli may prevent inflammation and reduce the risk of chronic diseases.
Health Benefits of Broccoli
Brussels Sprouts
Carbs: 8g
A cousin to broccoli, Brussels sprouts have antioxidants, fiber, and vitamin C.
One cup of Brussels sprouts contains the following nutrients:
- Carbs:8g
- Fiber:3g
- Protein:3g
- Vitamin C:75mg
- Vitamin K:156mcg
Brussels sprouts contain sinigrin, which is a plant-based compound. Some evidence suggests that sinigrin has anticancer, anti-inflammatory, antimicrobial, and wound-healing properties.
Cauliflower
Carbs: 4g
One cup of cookedcauliflowerhas four grams of carbs and 56 milligrams of vitamin C. Cauliflower contains fiber, which keeps you full for long periods.
Another member of the cruciferous family, cauliflower is a versatile low-carb vegetable. You can use cauliflower as a stand-in for rice, mashed potatoes, pizza crust, and baked goods.
Like its cousins, broccoli and Brussels sprouts, cauliflower may protect against certain diseases. One study published in 2017 found that eating more cruciferous vegetables reduces the risk of certain cancers and heart disease.
Kale
Carbs: <1g
With less than one gram of carbs in one cup, kale has a few possible benefits, such as:
- Helping manage eye diseases
- Protecting the gastrointestinal (GI) tract
- Reducing inflammation
Kale is among the vegetables with at least 10% of the daily recommended intake of 17 nutrients people need. Like most leafy greens, kale is a good vitamin A, vitamin C, potassium, calcium, and magnesium source.
One cup of kale provides 113 milligrams of vitamin K, about 94% of your daily recommended intake. Vitamin K is essential for bone health. Eating vitamin-K-rich foods helps strengthen your bones and reduce the risk of fractures.
Mushrooms
Carbs: 2g
Mushrooms are another flavorful and nutritious low-carb vegetable. Mushrooms are a source of protein and fiber and pack B vitamins, copper, vitamin D, and selenium.
B vitamins assist the process your body uses to get energy from food. The body needs vitamin D to absorb calcium and other nerve, muscular, and immune systems functions. Copper benefits iron uptake and energy metabolism. Selenium helps maintain various cell functions.
Agaricus, lingzhi, caterpillar, turkey tail, and maitake mushrooms may bolster immunity and have anti-cancer benefits. Mushrooms may have other properties, like antimicrobial, antioxidant, and hypoglycemic effects.
Spinach
Carbs: 1g
Spinach is another good source of several nutrients. A one-half cup of boiled spinach offers 64% of the daily recommended intake of vitamin A. Each serving provides fiber, vitamin C, iron, and magnesium. Spinach is an excellent source of vitamin K, with over 121% of the daily recommended intake in one cup.
Other than immunity support from vitamin C, spinach offers health benefits based on its other nutrients. For example, iron transfers oxygen to different body parts. Magnesium is essential for the growth and development of muscles.
One study published in 2018 looked at the relationship between green leafy vegetables and cognitive decline among older adults. The researchers found that eating green leafy vegetables like spinach helped slow the progression of cognitive decline.
Tomatoes
Carbs: 5g
One medium tomato has 20 calories and five grams of carbs. Tomatoes pack vitamins A and C, magnesium, and potassium.
Tomatoes are a healthy addition to any eating plan since they are a rich source of antioxidants. For example, tomatoes have lycopene, which is a natural pigment that gives them their red color. Lycopene is an antioxidant that helps protect against cell damage.
A review published in 2019 found that eating tomatoes promotes skin, bone, and brain health and lowers heart disease risk.
Health Benefits of Tomatoes
Vegetables To Limit on the Keto Diet
Starch is a type of carbohydrate, your body's primary energy source. Because the keto diet restricts your carb intake to about 20–50 grams daily, you may have to limit starchy vegetables.
Vegetables that contain more carbohydrates per serving include:
- One cup of chopped carrots: 12.3g
- One cup of green peas: 20.9g
- One medium ear of corn: 19.1g
- One medium white potato: 33.4
Keto diets should be followed under the supervision of a registered dietitian to assure you are getting all your essential nutrients. For some people, keto diets are used to treat medical conditions. Keto diets are not suitable for everyone.
You do not have to limit vegetables if you are on the keto diet or are considering it. Plenty of low-carb vegetable options include arugula, asparagus, bell peppers, broccoli, Brussels sprouts, cauliflower, kale, mushrooms, spinach, and tomatoes.
Those vegetables provide other benefits like reducing the risk of certain chronic diseases, containing antioxidants, and providing filling fiber. Whether on a keto diet or not, those vegetables will be nutritious additions to your plate.
