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What Kind of Beans Are Lowest in Carbs?

3 min read

Approximately 18.7% of U.S. adults follow a low-carb diet. For those watching their carb intake, some beans provide significantly fewer carbohydrates than others. Several delicious options make it easier to incorporate these nutritional powerhouses into a balanced diet. The key is understanding 'net carbs' and making informed choices, with options like black soybeans and green beans topping the list.

Quick Summary

Beans such as black soybeans and green beans offer a lower net carb count compared to traditional varieties, and they are suitable for low-carb diets. These high-protein, high-fiber legumes can be used in many recipes. Other options like lupini beans and shelled edamame are also good low-carb choices.

Key Points

  • Black soybeans are the lowest in net carbs: They provide just 1-2 grams of net carbs per half-cup serving, making them a top choice for keto and low-carb diets.

  • Green beans are a very low-carb option: As a pod vegetable, green beans contain only about 2 grams of net carbs per half-cup and are extremely versatile.

  • Lupini beans are an excellent snack: This Mediterranean bean is high in protein and fiber with minimal net carbs, making it a great keto-friendly snack.

  • Check net carbs vs. total carbs: Always subtract fiber from total carbohydrates to find the true net carb impact of any bean on your diet.

  • Portion control is essential: Even with low-carb options like edamame, moderation is important to ensure you stay within daily carbohydrate limits.

  • Low-carb beans offer significant health benefits: These varieties are rich in fiber, protein, and micronutrients that support heart health, weight management, and blood sugar control.

  • Higher-carb beans should be avoided on strict diets: Traditional beans like kidney, pinto, and chickpeas contain too many net carbs for strict ketogenic diets.

In This Article

Top Contenders for the Lowest Carb Beans

For people following low-carb diets, not all beans are created equal. While many legumes are nutrient-dense, their carbohydrate load can be problematic. Understanding net carbs—total carbohydrates minus fiber—is crucial for identifying the best options. The varieties listed below stand out for their exceptionally low net carb count, allowing enjoyment of the benefits of beans without a large impact on blood sugar.

Black Soybeans

Black soybeans are the leading low-carb beans, especially for those seeking a substitute for traditional high-carb options like black or pinto beans. With approximately 1–2 grams of net carbs per half-cup serving, they are a staple in many low-carb and keto recipes. Their mild flavor and versatility allow them to be used in everything from chili to mock refried bean dip. They are also a source of plant-based protein and fiber, making them very satiating.

Green Beans

Technically the pod of the bean plant rather than a mature seed, green beans have a very low net carb count and are often treated more like a vegetable. With about 2 grams of net carbs per half-cup serving, they can be enjoyed as a side dish in numerous ways, from steamed and sautéed to roasted with garlic and parmesan. Their crisp texture adds a refreshing element to meals and their versatility is a major plus.

Lupini Beans

Popular in Mediterranean cuisine, lupini beans are another low-carb option, boasting about 1 gram of net carbs per serving. They are high in protein and fiber, and their waxy texture makes them a unique and satisfying snack or addition to salads. They are often sold pickled in jars or as dried, requiring some preparation, but are well worth the effort for their nutritional profile.

Shelled Edamame

Edamame are young, immature soybeans typically sold frozen and shelled or in the pod. A half-cup serving of shelled edamame contains approximately 4 grams of net carbs, along with a good dose of plant-based protein. They make a fantastic snack, salad topping, or stir-fry ingredient. Edamame offers a healthy dose of fiber and quality protein, with all nine essential amino acids.

Comparison of Low-Carb and High-Carb Beans

To highlight the difference, here is a comparison of the net carb content for common low-carb and high-carb beans per half-cup serving. Remember that specific nutritional values can vary by brand and preparation.

Bean Variety Approximate Net Carbs (per ½ cup cooked) Suitable for Low-Carb/Keto?
Black Soybeans 1-2g Yes
Green Beans 2g Yes
Lupini Beans 1g Yes
Shelled Edamame 4g Yes (in moderation)
Pinto Beans 15g No (typically)
Kidney Beans 13g No (typically)
Black Beans 12g No (typically)
Chickpeas 18g No (typically)

Health Benefits of Incorporating Low-Carb Beans

Beyond their favorable carbohydrate profile, these beans offer significant health advantages:

  • Rich in Fiber: The high fiber content in beans aids in digestion, helps regulate blood sugar, and promotes a feeling of fullness, which is beneficial for weight management.
  • Excellent Source of Protein: Beans are a source of plant-based protein, crucial for muscle repair, tissue building, and overall satiety. Soybeans, in particular, are a complete protein source containing all essential amino acids.
  • Micronutrient Powerhouses: They provide essential vitamins and minerals, including folate, potassium, magnesium, and iron. Folate is especially vital for cell growth and metabolism.
  • Heart Health Support: Regular bean consumption is associated with lower cholesterol levels and reduced risk of heart disease. Their fiber content helps lower LDL (bad) cholesterol.
  • Blood Sugar Regulation: Due to their low glycemic index and fiber content, beans can help stabilize blood glucose levels, which is highly beneficial for managing or preventing type 2 diabetes.
  • Gut Health: The fiber in beans acts as a prebiotic, promoting the growth of beneficial gut bacteria, which can enhance overall gut and immune health.

Conclusion

Incorporating beans into a low-carb diet is not only possible but also beneficial for your overall health. By selecting specific, low-carb varieties like black soybeans, green beans, and lupini beans, the satisfying texture and dense nutrition of these legumes can be enjoyed without compromising dietary goals. These beans offer a wealth of fiber, protein, and essential nutrients that support heart health, weight management, and blood sugar control. Always monitor your portions, as even low-carb beans contain some net carbs, but rest assured that adding these to your meals is a savvy and flavorful choice for a healthier lifestyle.

For more research-backed nutritional information on legumes, studies and data from reputable sources like the National Institutes of Health can be consulted.(https://www.ncbi.nlm.nih.gov/books/NBK537084/)

Frequently Asked Questions

Black soybeans and lupini beans have the lowest net carbs, with approximately 1-2 grams per half-cup serving.

Yes, green beans are considered one of the most keto-friendly bean options due to their low net carb count of about 2 grams per half-cup serving.

Yes, black soybeans are an excellent low-carb substitute for traditional black beans in many recipes, including chili, tacos, and refried beans.

Net carbs are calculated by subtracting the grams of fiber from the total grams of carbohydrates. This number represents the carbohydrates that your body can digest and use for energy.

Shelled edamame is a relatively low-carb bean option, with approximately 4 grams of net carbs per half-cup. It should be consumed in moderation, especially on stricter low-carb diets.

No, not all beans are high in carbs. While many common varieties like pinto and kidney beans are high in carbohydrates, others such as black soybeans, green beans, and lupini beans are significantly lower.

Black soybeans can be used to make low-carb chili, mock refried beans, or added to soups and stews. They are a great, high-protein alternative to higher-carb beans.

References

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Medical Disclaimer

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