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What Grains Can You Have on a Low FODMAP Diet?

4 min read

According to Monash University, a leading authority on FODMAP research, eliminating high-FODMAP grains like wheat, barley, and rye can significantly reduce IBS symptoms. Knowing what grains can you have on a low FODMAP diet is key to a diverse and gut-friendly diet.

Quick Summary

This guide details the grains that are suitable for a low FODMAP diet, distinguishing them from high-FODMAP options. It provides lists of safe choices, practical cooking advice, and clarifies common misconceptions about gluten-free and low-FODMAP grains.

Key Points

  • Embrace Diverse Grains: A low FODMAP diet is not grain-free. Safe options include rice, quinoa, millet, buckwheat, and polenta.

  • Gluten-Free vs. Low FODMAP: Not all gluten-free products are low FODMAP. Always check ingredient lists for high-FODMAP additives like agave or inulin.

  • Monitor Oat Portions: Rolled oats are low FODMAP in smaller servings (1/2 cup cooked). Larger portions can trigger symptoms due to higher fructan content.

  • Explore Sourdough Bread: Traditional sourdough made from wheat or spelt can be low FODMAP because the fermentation process reduces fructans.

  • Read Labels Carefully: Always check ingredient lists on pre-packaged goods, even if they are labeled 'gluten-free,' to ensure no hidden high-FODMAP ingredients are present.

  • Variety is Key: Experiment with different low-FODMAP grains to ensure a wide range of nutrients and avoid dietary boredom.

In This Article

Navigating Grains on a Low FODMAP Diet

Starting a low FODMAP diet can feel restrictive, especially when faced with eliminating common staples like wheat-based bread and pasta. However, a wide variety of delicious and nutritious grains are naturally low in FODMAPs and can be enjoyed safely. Understanding which grains are low in FODMAPs and which should be avoided is crucial for managing symptoms of Irritable Bowel Syndrome (IBS) and other digestive disorders.

The Difference Between Low FODMAP and Gluten-Free

A common point of confusion is the distinction between a gluten-free and a low FODMAP diet. While many low-FODMAP grains are also gluten-free, the two concepts are not interchangeable. Gluten is a protein, whereas FODMAPs (Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols) are a group of fermentable carbohydrates. Wheat, barley, and rye contain both gluten and high levels of fructans (a type of oligosaccharide). A person with IBS reacts to the fructans, not necessarily the gluten protein. Some gluten-free products, for example, might still contain high-FODMAP ingredients like chickpea flour or agave syrup. Therefore, always check labels and rely on Monash University’s guidance or a certified dietitian.

Your Go-To List of Low FODMAP Grains

  • Rice: All varieties of rice—white, brown, basmati, and wild—are considered low FODMAP and safe for consumption. Rice-based products like rice noodles and rice cakes are also excellent choices.
  • Quinoa: This pseudo-grain is a complete protein and a superb low-FODMAP alternative to wheat-based foods. It can be enjoyed as a side dish, in salads, or as a porridge base.
  • Oats: Rolled oats are low FODMAP in moderate portions (1/2 cup). Look for certified gluten-free oats if you also have a gluten sensitivity, and be mindful of portion sizes as larger quantities can become high in FODMAPs.
  • Millet: A naturally gluten-free and alkaline grain, millet is versatile and can be cooked like rice or made into a creamy porridge.
  • Buckwheat: Despite its name, buckwheat is not related to wheat. It is a nutritious, gluten-free pseudo-grain that can be found as groats for porridge or as flour for baking.
  • Cornmeal (Polenta): Corn is generally low FODMAP, and products made from it, like polenta, grits, and corn tortillas, are safe options.
  • Sorghum: This versatile grain can be popped like popcorn or used as a flour in baking.
  • Teff: A tiny, gluten-free grain, teff flour is excellent for baking and making porridge.
  • Tapioca: Made from the cassava plant, tapioca flour and pearls are a great thickening agent and a staple in many gluten-free products.

Practical Cooking and Baking Tips

Incorporating these grains into your diet is simple. For breakfast, make oatmeal with a low-FODMAP portion of oats and your choice of low-FODMAP fruit like strawberries or blueberries. For lunches and dinners, use quinoa or rice as a base for grain bowls, or use corn tortillas for tacos. When baking, experiment with low-FODMAP flours like buckwheat, millet, and sorghum to create breads, pancakes, and muffins. Remember to always check product labels for added high-FODMAP ingredients, especially in pre-packaged gluten-free items, which can sometimes contain fructans or other high-FODMAP additions.

The Exception: Sourdough and Spelt

Interestingly, some traditionally high-FODMAP grains can be processed in a way that makes them safe in moderate amounts. For example, some sourdough breads made from spelt or wheat can be low FODMAP due to the long fermentation process. This process breaks down fructans, leaving a lower FODMAP content in the final product. Always check the Monash University app for specific serving sizes and fermentation requirements to ensure you choose a safe product.

Comparison of Low vs. High FODMAP Grains

Feature Low FODMAP Grains High FODMAP Grains
Examples Quinoa, Rice, Oats (moderate), Millet, Buckwheat, Cornmeal Wheat, Barley, Rye, Amaranth (large portions), Einkorn, Kamut, Freekeh
Key Carbohydrate Primarily starch; smaller quantities of fermentable carbs High levels of fructans (oligosaccharides)
Nutritional Profile Varies, but many are nutrient-rich with good fiber and protein Also nutritious, but problematic due for IBS sufferers due to fructans
IBS Symptom Impact Minimal, tolerated by most people with IBS Often triggers symptoms like bloating and pain
Preparation No special preparation needed to reduce FODMAPs Sourdough fermentation can reduce fructans in some cases
Label Check Check for added high-FODMAP ingredients (e.g., inulin) All products from these grains should be avoided during elimination

Conclusion

Far from being a restrictive diet, a low FODMAP eating plan can be rich and varied, especially when it comes to grains. By choosing from the extensive list of low-FODMAP grains like rice, quinoa, and millet, you can enjoy filling and delicious meals while effectively managing your digestive symptoms. Remember that not all gluten-free products are automatically low FODMAP, and it is vital to check ingredients carefully. With smart substitutions and a bit of knowledge, you can maintain a balanced and satisfying diet that promotes excellent gut health. For precise serving sizes and food information, always consult the trusted resources from Monash University.

For more detailed information, consult the Monash University Low FODMAP Diet App, the definitive resource for FODMAP content in foods. Monash University Low FODMAP Diet.

Frequently Asked Questions

No, not all gluten-free grains are low FODMAP. While many overlap, some gluten-free products may contain other high-FODMAP ingredients like soy flour, high-fructose corn syrup, or inulin.

Yes, rolled oats are low FODMAP in specific serving sizes. It's best to stick to the recommended portion of 1/2 cup cooked to avoid triggering symptoms.

All types of rice are low FODMAP, including white, brown, basmati, and wild rice. They are a safe and versatile staple for this diet.

Sourdough bread made through a long fermentation process, especially from spelt or wheat, can be low FODMAP because the fermentation breaks down the fructans. Check the Monash University app for specific serving sizes.

Yes, plain popcorn is a great low FODMAP snack. It's a whole grain that is gentle on the stomach and a good source of fiber.

During the elimination phase of the low FODMAP diet, ancient grains like spelt, einkorn, and kamut are high in FODMAPs and should be avoided. Some spelt products, like sourdough bread, may be tolerated in small servings.

The most reliable method is to check the Monash University FODMAP Diet app, which contains a database of tested foods and serving sizes. You can also read the ingredient list for common high-FODMAP additives like wheat, barley, rye, inulin, and high-fructose corn syrup.

References

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Medical Disclaimer

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