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Can you eat pinto beans on low FODMAP? A dietitian's guide to portion sizes and preparation

4 min read

For those managing Irritable Bowel Syndrome (IBS), a low FODMAP diet can significantly reduce symptoms, and a common question that arises is whether can you eat pinto beans on low FODMAP. The answer is yes, but only in specific, small portion sizes and with the right preparation, according to testing by Monash University.

Quick Summary

Pinto beans can be part of a low FODMAP diet in limited amounts, with canned and rinsed beans being the most tolerable form. Dried pinto beans have a smaller safe serving size. Careful portion control and proper preparation are crucial for minimizing symptoms, and alternatives are available.

Key Points

  • Small Portions Are Key: According to Monash University, canned pinto beans are only low FODMAP in a very small serving of 55g (approx. 2 tbsp).

  • Canned is Safer than Dried: Canned pinto beans are significantly lower in FODMAPs than dried beans because the water-soluble FODMAPs leach into the canning liquid.

  • Always Drain and Rinse: Thoroughly draining the liquid and rinsing canned pinto beans is a crucial step to remove excess FODMAPs.

  • Beware of FODMAP Stacking: Combining a small portion of pinto beans with other high-FODMAP foods can trigger symptoms, so be mindful of your total intake.

  • Explore Low FODMAP Alternatives: For larger servings, consider naturally lower FODMAP options like green beans, edamame, or smaller portions of canned chickpeas or lentils.

  • Reintroduce with Caution: When reintroducing, start with a tiny amount and observe your body's reaction to find your personal tolerance level.

  • Flavor Safely: Use low FODMAP herbs and spices like cumin, coriander, and asafoetida to enhance flavor without adding high-FODMAP ingredients like garlic or onion.

In This Article

Understanding FODMAPs and Legumes

FODMAPs are a group of fermentable carbohydrates that can trigger digestive symptoms like bloating, gas, and abdominal pain in sensitive individuals, particularly those with Irritable Bowel Syndrome (IBS). Legumes, including pinto beans, are naturally high in galacto-oligosaccharides (GOS) and fructans, two types of FODMAPs. These carbohydrates ferment in the gut, causing discomfort when consumed in large quantities.

The good news is that following a low FODMAP diet does not require completely avoiding all high-FODMAP foods. Instead, it involves finding your personal tolerance level and focusing on preparation methods that reduce FODMAP content.

The Verdict: Can you eat pinto beans on low FODMAP?

Yes, you can eat pinto beans on a low FODMAP diet, but with important caveats regarding portion size and preparation. The FODMAP content in beans is water-soluble, meaning it can leach out into liquids during processing. This is why canned beans, when properly drained and rinsed, are generally more tolerable than dried beans.

Canned vs. Dried Pinto Beans

The difference in FODMAP content between canned and dried pinto beans is significant. Canned beans are soaked in brine, which allows some of the FODMAPs to seep out. By draining and rinsing the canned beans, you remove a portion of these fermentable carbohydrates. Dried beans, on the other hand, retain a higher concentration of FODMAPs, requiring a much smaller serving size to remain low FODMAP.

Monash University Low FODMAP Serving Sizes for Pinto Beans

Monash University, the institution that pioneered the low FODMAP diet, provides specific serving sizes for various foods. Adhering to these guidelines is crucial for managing symptoms during the elimination phase of the diet. The table below outlines the tested portion sizes for pinto beans.

Low FODMAP Pinto Bean Servings

Pinto Bean Type Low FODMAP Serving Size Moderate FODMAP Serving Size Primary FODMAPs
Canned, drained 55g (approx. 2 tbsp) 64g GOS
Canned refried 45g (approx. 1/6 cup) 55g GOS
Dried, boiled, drained 23g (approx. 1.5 tbsp) 28g GOS

Critical Preparation: Making Pinto Beans Low FODMAP

Proper preparation is the key to enjoying pinto beans without triggering digestive symptoms. Follow these steps to maximize your tolerance:

  • Use Canned Beans: Whenever possible, opt for canned pinto beans over dried ones, as the canning process already reduces FODMAP content.
  • Drain the Liquid: Before use, drain all the liquid from the can. This liquid contains the FODMAPs that have leached out of the beans during canning.
  • Rinse Thoroughly: After draining, rinse the beans under cold, running water for at least 30 seconds. This further washes away any remaining FODMAPs clinging to the beans.
  • Use Precise Portions: Use a measuring cup or food scale to ensure your serving size does not exceed the recommended low FODMAP threshold.
  • Soak Dried Beans: If using dried beans, soaking them overnight and then discarding the water can help reduce their FODMAP content, but remember the safe serving size is still significantly smaller.

Low FODMAP Alternatives to Pinto Beans

If you find that even small portions of pinto beans cause discomfort, or if you prefer a more generous serving, several other legumes and vegetables are naturally lower in FODMAPs:

  • Green Beans: A generous serving of 75g (approx. 15 beans) is considered low FODMAP.
  • Edamame: Shelled, frozen edamame is low FODMAP at a serving size of 1/2 cup (76g).
  • Canned Chickpeas: Rinsed and drained canned chickpeas are low FODMAP at 1/4 cup (42g).
  • Canned Lentils: A 1/4 cup (46g) serving of rinsed and drained canned lentils is safe for the low FODMAP diet.
  • Firm Tofu: Pressed firm tofu is a great, low FODMAP source of protein, with a safe serving size of 1 cup (170g).

Practical Tips for Incorporating Beans Into Your Diet

To successfully add low FODMAP beans to your diet, consider the following strategies:

  • Start Small: Begin by testing your tolerance with a very small portion, such as one tablespoon, and monitor for symptoms before increasing the amount.
  • Prevent FODMAP Stacking: Be mindful of other ingredients in your meal. Consuming small portions of multiple high-FODMAP foods can lead to symptoms, even if each individual serving is low FODMAP. For instance, do not combine your pinto beans with a high-FODMAP sauce.
  • Pair with Safe Foods: Combine your small serving of pinto beans with other low FODMAP foods, such as rice, quinoa, and non-cruciferous vegetables.
  • Flavor with Safe Herbs and Spices: Enhance the flavor of your beans with low FODMAP seasonings like cumin, coriander, and asafoetida powder, a gut-friendly alternative to garlic and onion powder.

Conclusion: Enjoying Pinto Beans Responsibly

While pinto beans are not inherently low FODMAP, they can be included in a low FODMAP diet if you follow specific preparation methods and adhere to the small, recommended serving sizes. By using canned, drained, and thoroughly rinsed pinto beans in limited quantities, you can still enjoy their nutritional benefits without triggering IBS symptoms. For a deeper dive into tested foods, consider consulting the official Monash University FODMAP Diet App, your comprehensive guide for managing this diet effectively. Remember to listen to your body and adjust your portion sizes based on your individual tolerance. If pinto beans remain a trigger, plenty of excellent low FODMAP alternatives are available to explore. This approach allows for a more varied and nutritious diet even with digestive sensitivities.

Frequently Asked Questions

According to Monash University, a low FODMAP serving of canned, drained pinto beans is 55g, which is about 2 tablespoons per meal.

Yes, canned refried pinto beans have a low FODMAP serving size of 45g (about 1/6 cup), but it's important to check ingredients for added high FODMAP ingredients like garlic or onion.

Canned pinto beans are a better option because the FODMAPs leach into the water during processing. Draining and rinsing canned beans significantly reduces their FODMAP content, making them more tolerable.

Pinto beans contain significant amounts of two types of FODMAPs: galacto-oligosaccharides (GOS) and fructans, which can cause digestive issues for sensitive individuals.

Good alternatives include green beans, shelled edamame, and smaller portions of rinsed, canned chickpeas or lentils.

Exceeding the recommended low FODMAP serving size of pinto beans can cause digestive symptoms such as bloating, gas, and abdominal pain due to a higher intake of fermentable carbohydrates.

Yes, but the low FODMAP serving size is smaller than for canned beans—just 23g (about 1.5 tablespoons) per meal, and it's essential to boil and drain them properly.

Yes, you can soak dried pinto beans overnight, and then boil and drain them, discarding all liquids. This process helps to remove some of the water-soluble FODMAPs.

References

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Medical Disclaimer

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