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What Kind of Beans Are Alkaline? A Guide to Alkaline-Forming Beans

4 min read

According to a 2023 study published in the Journal of the American College of Nutrition, diets high in plant-based foods, including specific legumes, are associated with a lower dietary acid load. These findings highlight the importance of knowing what kind of beans are alkaline when aiming for a more balanced diet and better overall health.

Quick Summary

Several types of beans and legumes contribute to an alkaline-forming diet, including white beans, kidney beans, green beans, and lentils. This guide details how to identify alkaline beans and their nutritional benefits.

Key Points

  • Soybeans are Highly Alkaline-Forming: Soybeans and derived products like tofu have a negative PRAL, making them excellent alkaline additions to your diet.

  • White and Kidney Beans are Alkaline: White beans (navy, cannellini) and kidney beans are rich in minerals that promote alkalinity.

  • Lentils and Green Beans are Alkaline-Friendly: These versatile legumes are full of fiber and nutrients that support an alkaline-forming diet.

  • Proper Preparation Reduces Acidity: Soaking and cooking beans correctly can minimize their acidic potential and enhance digestibility.

  • Combining with Alkaline Foods Boosts Benefits: Pairing beans with plenty of alkaline vegetables, herbs, and healthy oils maximizes the alkaline effect of your meals.

In This Article

The concept of an alkaline diet is based on the idea that certain foods, after being digested and metabolized, leave behind an alkaline residue, or "ash," while others leave an acidic one. The goal is not to change your blood pH, which is tightly regulated by your body, but to support overall well-being by emphasizing nutrient-dense, whole foods. For those following this dietary pattern, selecting the right legumes is crucial. Fortunately, many popular and versatile bean varieties are excellent alkaline-forming choices.

Highly Alkaline-Forming Beans and Legumes

Beans and legumes are nutritional powerhouses, packed with fiber, plant-based protein, and essential minerals. The most significant alkaline-forming options offer a wealth of health benefits beyond their pH-balancing properties.

  • Soybeans: Highly nutritious, soybeans are a staple in many vegan and vegetarian diets. They are rich in protein, fiber, and calcium, contributing significantly to a negative potential renal acid load (PRAL) score, which indicates an alkaline effect. Tofu, a product derived from soybeans, is also considered alkaline-forming.
  • White Beans: Varieties such as navy beans and cannellini beans are particularly celebrated for their high alkalinity. White beans are rich in fiber, plant-based protein, and minerals like magnesium, calcium, and potassium, all of which support an alkaline environment in the body.
  • Lentils: Though classified as a legume, lentils are a key component of an alkaline diet. They are rich in iron and slowly digested fiber, which aids in digestive health while promoting an alkaline effect. Cooking them at home from scratch is recommended to get the most nutritional benefits.
  • Lima Beans: Often overlooked, lima beans are a great alkaline option, providing a significant boost of iron and vitamin C. Like other alkaline legumes, their nutritional profile helps counteract the acid-forming effects of other foods.
  • Green Beans: As fresh vegetables, green beans are highly alkaline and packed with nutrients like fiber, vitamin C, and potassium. They can be enjoyed both hot and cold in various dishes, making them an easy addition to any diet aiming for a lower acid load.

Moderately Alkaline-Forming Beans and Preparation

Some beans are considered less alkaline or even moderately acidic, but their preparation can influence their overall impact. For example, some sources classify black beans and pinto beans as moderately acidifying, while others include them in alkaline lists.

To increase the alkaline effect of these legumes, proper preparation is essential. Soaking dried beans overnight, draining the water, and adding a small amount of baking soda during the cooking process can help reduce their acidity and improve mineral absorption. This process also helps to break down the complex sugars that cause gas and bloating.

Comparison Table: Alkaline vs. Potentially Acid-Forming Beans

This table provides a quick overview of how different bean types are classified in alkaline diet circles.

Bean Type Alkaline-Forming? Nutritional Highlights Notes on Preparation
White Beans (Navy, Cannellini) Yes High in fiber, protein, magnesium, calcium, potassium Soaking and proper cooking enhance alkalinity.
Kidney Beans Yes Rich in iron, fiber, potassium, magnesium Some sources list them as moderately acidic, but they are generally considered alkaline-forming after digestion.
Soybeans Yes Excellent source of protein, fiber, calcium, iron Can be consumed as edamame, tofu, or tempeh for alkaline benefits.
Lentils Yes High in protein, iron, and fiber Best when cooked from scratch for optimal nutritional and alkaline value.
Mung Beans Yes Antioxidant-rich, good source of vitamin C Often sprouted to maximize alkaline properties.
Green Beans Yes Great source of fiber, vitamin C, potassium Can be eaten fresh or cooked with other alkaline vegetables.
Black Beans Potentially Acid-Forming High in fiber and magnesium Can be made more alkaline-friendly with proper soaking and cooking techniques.

Maximizing the Alkaline Benefits of Beans

Beyond selecting the right beans, how you prepare and serve them can further boost your meal's alkaline potential. Here are some tips:

  1. Use Alkaline-Rich Cooking Liquids: Cook your beans in alkaline-filtered water or vegetable broth. Avoid using acidic ingredients like tomatoes or vinegar during the initial cooking phase, as this can slow down cooking and influence the final pH.
  2. Combine with Alkaline Vegetables: Serve your alkaline beans with a generous portion of other alkaline-forming vegetables, such as leafy greens, bell peppers, broccoli, or onions. A kidney bean and spinach salad with a lemon-based dressing is a delicious and alkaline-friendly option.
  3. Sprout for Enhanced Alkalinity: Sprouting beans, especially smaller varieties like mung beans, can increase their alkalinity and nutrient bioavailability. This process is simple and can be done at home with minimal equipment.
  4. Pair with Healthy Fats: Incorporate healthy, alkaline-friendly fats like olive oil or avocado oil into your bean dishes. For example, a drizzle of extra virgin olive oil can enhance the flavor and nutritional profile of a white bean and garlic medley.

Conclusion: Making Alkaline Beans Part of Your Diet

Including a variety of alkaline-forming beans in your diet is a simple and effective way to move toward a more plant-based, nutrient-dense eating pattern. While the alkaline diet's influence on blood pH is debated, there's no question that legumes like white beans, kidney beans, and lentils are exceptionally healthy foods. By focusing on whole foods and smart preparation methods, you can harness the abundant fiber, protein, and minerals these beans offer to support your health. The journey to a more alkaline-friendly diet is about making mindful, informed choices that prioritize your well-being. Start by swapping out more acidic protein sources for these nutrient-packed, alkaline-forming beans to reap the rewards.

Frequently Asked Questions

The distinction lies in the 'ash' left after digestion. Alkaline beans and legumes, like soybeans and white beans, leave a mineral-rich residue, while some others might produce a slightly more acidic residue, though this is debated.

No, not all beans and legumes are considered equally alkaline. While many, such as white beans and lentils, are alkaline-forming, some sources list others, like black beans, as moderately acidic, though preparation can influence this.

You can increase the alkaline nature of beans by soaking them overnight, draining the water, and cooking them with a pinch of baking soda. Cooking them in vegetable broth and pairing them with other alkaline ingredients is also effective.

PRAL stands for Potential Renal Acid Load, a metric used to estimate how much acid or alkali a food produces in the body. A negative PRAL score, like those for white beans and soybeans, indicates an alkaline-forming effect.

While fresh, home-cooked beans are often preferred, rinsed canned beans can be used. Rinsing helps remove excess sodium and preservatives, which can be acid-forming.

There is some inconsistency in alkaline diet charts, with certain beans appearing on both acidic and alkaline lists depending on the source. This often relates to preparation methods and the specific variety of bean.

Black beans are often considered moderately acidifying, though they do provide beneficial nutrients like magnesium. Combining them with plenty of alkaline vegetables can help balance the overall acid load of a meal.

References

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Medical Disclaimer

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