Which beans are the best for diabetics?

For people with diabetes, choosing the right foods can help manage blood sugar levels and prevent complications. Beans are an excellent choice as they are low on the glycemic index, high in fiber, and provide essential nutrients. But with so many varieties of beans available, which ones are the best options for diabetics?

How Beans Help Control Blood Sugar

Beans are considered a low glycemic index food. This means they do not cause significant spikes in blood sugar levels after eating. The fiber, protein, and complex carbs in beans help slow down the digestion and absorption of sugars into the bloodstream. The lower glycemic response can help prevent blood sugar crashes and reduce the need for insulin production.

In addition, beans are rich in soluble fiber which helps regulate blood sugar levels. Soluble fiber forms a gel-like consistency when mixed with fluids during digestion. This slows down the emptying of the stomach and absorption of nutrients into the bloodstream. The overall effect is to prevent rapid rises and drops in blood glucose after eating.

Bean Varieties Ideal for Diabetics

While all beans can be a smart choice, some varieties are especially beneficial for diabetes management due to their lower glycemic index scores. Here are some of the top bean options:

  • Black beans – With a very low glycemic index of 30-42, black beans have minimal impact on blood sugar. They are also high in soluble fiber and protein.
  • Kidney beans – Also known as red beans, kidney beans have a low glycemic index of 33. They are packed with fiber, minerals like iron, potassium and magnesium, and antioxidants.
  • Navy beans – These small white beans offer a low glycemic load. Their high manganese content provides antioxidant protection and supports blood sugar control.
  • Pinto beans – With a glycemic index of 39, pinto beans support steady glucose levels. They are also rich in fiber, protein, folate, and iron.
  • Chickpeas – Also called garbanzo beans, chickpeas have a glycemic index of 28-45. Their high soluble fiber content helps regulate blood sugar levels after meals.

Other bean varieties that are great for diabetes include cannellini beans, great northern beans, and adzuki beans. Checking the glycemic index can help determine which options are optimal for blood sugar control.

Nutritional Benefits of Beans

In addition to the blood sugar benefits, beans also provide many other nutrients that are important for diabetics including:

  • Protein – Beans provide plant-based protein needed for tissue repair and muscle maintenance without increasing blood sugar levels.
  • Fiber – The high fiber content improves digestive health and promotes feelings of fullness to prevent overeating.
  • Folate – Many beans are excellent sources of folate, a B vitamin that helps reduce levels of homocysteine, a risk factor for heart disease common in diabetics.
  • Manganese – Found in high amounts in beans like chickpeas and kidneys beans, manganese is an essential mineral that acts as an antioxidant and supports wound healing.
  • Iron – Important for oxygen transport in the blood, iron also helps fight fatigue and improve immunity.
  • Magnesium – Magnesium supports bone health, nerve functioning, and muscle relaxation. Many diabetics are deficient in this mineral.

Tips for Cooking and Eating Beans

To fully gain the advantages beans offer for blood sugar control and nutrition, follow these simple tips:

  • Gradually increase fiber to avoid digestive issues. Start with 1/2 cup servings and drink plenty of fluids.
  • Choose low-sodium canned beans to reduce sodium intake which can affect blood pressure.
  • Rinse canned beans to remove excess salt, starch, and other additives.
  • Cook dry beans thoroughly until soft. Undercooked beans are harder to digest.
  • Try sprouted beans as they tend to have fewer digestive side effects.
  • Add herbs, spices, lemon juice, or vinegar for flavor instead of high-fat and high-sodium ingredients.
  • Mash beans or use bean dips and spreads to increase the fiber content of meals.
  • Pair beans with non-starchy vegetables and healthy fats like olive oil or avocado.

Sample Meal Plans with Beans

It’s easy to incorporate more beans into your meal plan. Here are some diabetes-friendly meal ideas:


  • Scrambled egg wrap with black beans, sautéed peppers and onions, and salsa in a whole wheat tortilla.
  • Oatmeal topped with walnuts, cinnamon, and drained canned chickpeas for extra protein and fiber.


  • Chickpea salad sandwich on whole grain bread with lettuce, tomato, avocado and a drizzle of olive oil vinegar dressing.
  • Minestrone soup loaded with cannellini beans, vegetables, and whole grains like barley or brown rice.


  • Black bean tacos on corn tortillas with sautéed veggies and sliced avocado.
  • Vegetarian chili made with kidney beans, diced tomatoes, peppers, zucchini, and onion. Serve over quinoa or brown rice.


  • Edamame sprinkled with sea salt
  • Bean dip with raw veggies or whole grain crackers
  • Trail mix with dried chickpeas, almonds, and dark chocolate chips

Are Beans Safe for All Diabetics?

Beans are safe and recommended for most people with diabetes. However, there are a few precautions to keep in mind:

  • Start slowly if your body is not used to high fiber foods to prevent gas and bloating.
  • Some people may experience a slightly higher post-meal blood sugar rise from beans compared to non-starchy vegetables. Monitor your levels.
  • Avoid canned beans with added sugar or high sodium. Look for low sodium or no salt added.
  • People with diabetic gastroparesis may need to avoid beans as they may be difficult to digest.
  • Some diabetics may be prone to kidney stones. For them, oxalate-rich beans like navy beans, soybeans, and black beans may need to be limited.

Talk to your doctor or dietitian about how to incorporate beans into your individualized meal plan in a healthy way.

The Bottom Line

Adding beans to your diet can be one of the most effective ways to improve blood sugar control, provide steady energy, and obtain important nutrients if you have diabetes. Beans are low glycemic, packed with fiber, protein and minerals, versatile to use in recipes, and affordable. Just be sure to introduce them gradually, drink plenty of fluids, and pair them with healthy fats, veggies or whole grains for the biggest benefits.

Bean Variety Glycemic Index Key Nutrients
Black beans 30-42 Fiber, protein, iron, magnesium
Kidney beans 33 Fiber, iron, potassium, antioxidants
Navy beans 38-45 Manganese, thiamine
Pinto beans 39 Fiber, protein, folate, iron
Chickpeas 28-45 Fiber, protein, manganese

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