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What vegetable has the highest protein? Edamame leads the way

4 min read

According to the USDA, a cup of cooked, shelled edamame delivers a significant 18.4 grams of protein, making it the clear leader when considering what vegetable has the highest protein. While most vegetables offer some protein, this often-overlooked legume packs a powerful and complete protein punch, offering a stellar option for those following plant-based or omnivorous diets alike.

Quick Summary

This article explores the highest protein vegetables, highlighting edamame's nutritional superiority. Learn about its complete protein status, fiber content, and versatility in meals. Discover other excellent plant-based protein sources, compare their nutrient profiles, and find practical ways to boost protein in your daily diet.

Key Points

  • Edamame is the highest protein vegetable: At around 18.4 grams per cooked cup, shelled edamame offers the most protein among common vegetables.

  • Edamame is a complete protein: Unlike most plants, soy protein is complete, containing all nine essential amino acids needed by the body.

  • Legumes are protein powerhouses: Other legumes like lentils, chickpeas, and black beans are excellent, high-protein additions to a healthy diet.

  • Leafy greens add protein too: Cooked spinach and other leafy greens contribute meaningful amounts of protein, along with many vitamins and minerals.

  • Vary your sources for all essential amino acids: To get all essential amino acids from plants, it's important to eat a variety of protein-rich legumes, grains, nuts, and seeds throughout the day.

  • Plant-based proteins offer more than just protein: Vegetables and legumes come packaged with fiber, vitamins, minerals, and antioxidants that support overall health.

  • Easy integration into meals: You can easily boost your protein intake by adding vegetables like edamame and lentils to salads, soups, stir-fries, and snacks.

In This Article

Edamame: The undisputed protein champion

When most people think of protein, they think of meat, dairy, or eggs. However, a wealth of plant-based options can help you meet your daily needs, with some even offering a complete protein profile. Edamame, the young green soybean, sits at the top of this list, proving that plants can be protein powerhouses.

One cup of cooked, shelled edamame contains approximately 18.4 grams of high-quality protein. What makes this particularly notable is that soy is one of the few plant-based foods that is a complete protein, containing all nine essential amino acids that our bodies cannot produce on their own. This makes it an excellent choice for vegetarians and vegans who must be mindful of combining different protein sources to ensure they get all necessary amino acids.

Beyond its impressive protein content, edamame is a nutritional giant. A single serving is also rich in:

  • Fiber: A cup provides about 8 grams of fiber, which is essential for digestive health and promoting feelings of fullness.
  • Vitamins and Minerals: Edamame is an excellent source of folate, vitamin K, iron, magnesium, and potassium, all vital for various bodily functions.
  • Antioxidants: It contains plant compounds like isoflavones, which may have anti-inflammatory properties and support heart health by helping to lower LDL (“bad”) cholesterol.

More high-protein vegetable and legume powerhouses

While edamame may be the top contender, several other vegetables and legumes also offer a substantial protein boost. Including a variety of these foods in your diet is the best way to ensure you receive a broad spectrum of nutrients.

Legumes (often considered vegetables in a dietary context)

  • Lentils: These small, disc-shaped legumes are a staple in many cuisines. A cooked cup contains around 18 grams of protein and is packed with fiber and iron.
  • Chickpeas (Garbanzo Beans): With approximately 14.5 grams of protein per cooked cup, chickpeas are a versatile and nutritious addition to salads, curries, and hummus.
  • Black Beans: Providing 15.2 grams of protein per cooked cup, black beans are a staple in many Mexican dishes and are also rich in fiber and antioxidants.

Vegetables with notable protein content

  • Green Peas: A cup of green peas offers about 8 grams of protein and is easy to add to pasta dishes, soups, and stir-fries for a quick boost.
  • Spinach: When cooked, one cup of spinach contains about 6 grams of protein. Its volume significantly reduces upon cooking, making it easy to consume a large, protein-rich serving.
  • Sweet Corn: Often a surprise to many, a cup of sweet corn can provide around 5 grams of protein, along with fiber and other nutrients.

Comparison of top vegetable protein sources

To see how these sources compare, consider the protein content per cooked cup (approximate values based on USDA data):

Vegetable/Legume Protein (per cooked cup) Other Key Nutrients
Edamame ~18.4 g Fiber, Folate, Vitamin K, Iron
Lentils ~18 g Fiber, Iron, Folate
Chickpeas ~14.5 g Fiber, Iron, Vitamins, Minerals
Black Beans ~15.2 g Fiber, Anthocyanins, Magnesium
Green Peas ~8 g Fiber, Vitamins A and C
Spinach (Cooked) ~6 g Vitamin K, Vitamin C, Calcium
Sweet Corn ~5 g Fiber, Vitamin B6, Potassium
Brussels Sprouts ~5.4 g Vitamin C, Vitamin K, Fiber

Practical tips for boosting vegetable protein

Incorporating more high-protein vegetables into your daily diet is easier than you might think. Here are some actionable tips:

  • Snack on Edamame: Keep frozen edamame on hand for a quick, satisfying snack. Simply steam or microwave and sprinkle with salt for a filling treat.
  • Integrate Legumes into Meals: Add lentils to hearty stews, mix chickpeas into salads for extra texture, or mash black beans to create a base for veggie burgers.
  • Create Powerful Bowls: Build a nutrient-dense bowl with quinoa, roasted vegetables like broccoli and Brussels sprouts, and a generous portion of lentils or edamame for a complete, protein-packed meal.
  • Enhance Smoothies and Dips: For an added protein boost, blend cooked spinach or chickpeas into smoothies. Hummus, made from chickpeas, is an easy protein-rich dip for vegetables.
  • Roast Your Veggies: Roasting vegetables like Brussels sprouts and broccoli not only brings out their flavor but also makes them a satisfying, protein-contributing side dish.

Conclusion

While animal products are widely known for their high protein content, a well-planned, plant-based diet can easily meet your protein needs by focusing on specific vegetables and legumes. Edamame, in particular, stands out for its high-quality, complete protein profile, making it a stellar option for anyone looking to boost their protein intake from plant sources. By embracing a variety of these nutritious vegetables, from lentils and chickpeas to spinach and broccoli, you can build delicious, protein-rich meals that support overall health and well-being. Focusing on a diverse range of plant proteins not only provides essential building blocks for your body but also supplies crucial fiber, vitamins, and minerals that contribute to a healthier lifestyle. For more information, the American Institute for Cancer Research provides valuable resources on how to get enough protein on a plant-based diet without relying on animal products.

Frequently Asked Questions

Edamame, or young green soybeans, has the most protein among common vegetables. A single cooked cup of shelled edamame contains approximately 18.4 grams of protein, significantly higher than other options.

Yes, edamame is a complete protein. It contains all nine essential amino acids that the human body cannot produce on its own, which is a rare and valuable trait among plant-based foods.

Yes, in a dietary context, legumes like beans, lentils, and peas are considered part of the vegetable group by organizations like the USDA. They are harvested from pods and are excellent sources of protein, fiber, and other nutrients.

Other high-protein vegetables include lentils (18g/cooked cup), chickpeas (14.5g/cooked cup), black beans (15.2g/cooked cup), and cooked spinach (6g/cup).

While some plant proteins are incomplete, you don't necessarily need to combine them at every meal. By consuming a wide variety of plant-based protein sources, including grains, legumes, nuts, and seeds throughout the day, you can ensure your body receives all nine essential amino acids.

You can easily add high-protein vegetables to your diet by snacking on steamed edamame, adding lentils to soups and stews, including chickpeas in salads, or making hummus. Roasting vegetables like broccoli and Brussels sprouts is another simple way to prepare a nutritious side dish.

Cooking methods generally don't destroy protein, but they can affect the concentration per serving size. For example, cooking spinach reduces its volume, concentrating the protein into a smaller portion. The protein in legumes may also become more digestible after cooking.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.