Asparagus is a unique and tasty vegetable that is also a much-loved herald of spring. In Europe, in particular, the arrival of local asparagus in the markets is celebrated, and asparagus dishes appear on every menu. But beyond the delicate flavor of these long green spears is excellent nutritional value and an array of health benefits. However, if you’re not familiar with the carbohydrate content of asparagus, you might be wondering: is asparagus keto? Let’s look at how to incorporate asparagus into your keto lifestyle.
What Is Asparagus?
Asparagus (Asparagus officinalis) comes in several colors, including purple, white, and green. Most people are more familiar with the green variety.
Asparagus is featured in dishes worldwide, and you can cook asparagus in different ways to achieve different textures. Many people enjoy a slight firmness and crunch to their spears.
Is Asparagus Keto?
Yes, asparagus is a keto-friendly veggie. Half a cup (90 grams) of cooked asparagus contains around 1.9 grams of net carbs, 2.2 grams of protein, and 0.2 grams of fat.  As a low-carb vegetable, asparagus is the perfect addition to keto stir-fries, salads, veggie and egg bakes, keto pasta dishes, side dishes, and more.
Nutrition Profile and Benefits of Asparagus
Like many vegetables, asparagus is low in calories and fat but loaded with nutrients and antioxidants. Asparagus’ low calorie count and moderate fiber content make it a perfect veggie for weight loss. The insoluble fiber supports digestion and regular bowel movements, while the small amount of soluble fiber feeds the friendly bacteria in your gut like Lactobacillus, which strengthen your immune system and assist in producing B12 and other important nutrients. 
Half a cup (90 grams) of cooked asparagus provides around 12% of the recommended daily intake (RDI) for vitamin C, 18% of the RDI for vitamin A, and an impressive 57% of your RDI of vitamin K. These tasty spears also provide phosphorous, folate, potassium, vitamin E, and small amounts of micronutrients like zinc and iron.
Asparagus’ high levels of vitamin K make it helpful with blood clotting and bone health.  Folate is crucial for cell growth, DNA formation, and healthy pregnancy. 
Free radicals can be generated by your body’s normal metabolic processes or from exposure to carcinogens and harmful substances in your environment. An excess of free radical molecules can be harmful to your body and lead to oxidative stress—a state of imbalance between antioxidants and free radicals.
That’s where antioxidants come in, to donate an electron and neutralize free radicals, making them more stable and less reactive. Vitamins like Vitamin E are considered powerful antioxidants.  Asparagus is rich in antioxidants, including vitamins E and C, polyphenols, quercetin, and glutathione.   Glutathione is known for its detoxifying properties and the ability to assist in removing carcinogens from the body.
These antioxidants have been shown to exert anti-inflammatory, blood-pressure-lowering, anticancer, and antiviral properties in several test-tube, animal, and human studies.  
Purple asparagus get their vibrant color from anthocyanins, which are pigments that have antioxidant effects. In studies, anthocyanin reduced blood pressure and the risk of heart disease and heart attacks.  
Animal studies on rats with high blood pressure indicate asparagus could have other blood-pressure-lowering properties. After 10 weeks, rats eating an asparagus diet had 17% lower blood pressure compared to the rats on the standard diet. More human research is needed.