Many people I work with are pretty scared of lentils. They are well known to cause gas in people, even if you don’t have IBS. So the thought of knowing eating something that might make things worse can be scary. 

However, in this article I’d like to explain why lentils aren’t always a bad choice, and how you can start eating lentils again if you’ve stopped. 

Benefits of lentils for people with IBS

Lentils are a cheap and effective way to bulk out your meals, and they are very healthy.

Lentils contain a slow digesting resistant starch.  This means, when you eat them the glucose is slowly released in to your blood. This makes them suitable for people with diabetes or needing to work on blood sugar control. 

Polyphenol content of lentils

Lentils may help protect against heart disease due to polyphenol content, a strong antioxidant that helps reduce oxidative stress. 

They are also nutrient dense. They are packed with B vitamins, zinc and iron. These additions make them a great choice for people following a vegetarian diet. 

How do lentils affect your digestion?

We all know lentils can cause a bit of gas, even in people who don’t have IBS. This is due to high levels of prebiotic fibre which feeds the beneficial bacteria in your large intestine. Your gut will find this type of fibre hard to break down, so it travels to the large intestine where the microbes can enjoy it.

When the bacteria ‘eat’ the fibre they create gasses, which can leave you feeling a bit bloated. 

Lentils are high FODMAP

The specific type of fibre in lentils is called Galacto-oligosaccharides (GOS). This fibre could increase your bloating, gas and sensitivity. You can listen to my podcast episode below about how GOS affects your digestion. 

When eaten in large amounts lentils can also contain fructan, another FODMAP.

Are lentils ok to eat if you have IBS?

It’s worth trying lentils again to see how you get on. Adding some diversity to the types of fibre you eat will improve your gut microbiome over time. 

Tinned lentils can be low FODMAP at up to 45g per meal (around ¼ of a cup). If you rinse your tinned lentils well you will wash away some of the GOS, making it easier for you to digest. 

Red and puy lentils cooked from scratch can become high FODMAP at just 23g per meal. Try eating these small portions regularly to build up your tolerance. This is around 2 tablespoons of lentils per meal. 

How to start eating lentils with IBS

I really encourage you to try and include even small amounts of lentils and see if you can manage a little bit! Start by adding these low FODMAP amounts like 1-2 tablespoons to your meals once a week. 

You may not have an issue with GOS, or any FODMAPs, so if you have IBS, it’s best to test your tolerance using the low FODMAP diet intervention. This is a clear process to remove all FODMAP foods for a few weeks, then slowly and carefully reintroduce them. 

Read next – 5 confusing FODMAP foods and how to eat them

If you want help figuring out your IBS triggers, start your Gut Reset with me over 3 months to find a diet that works for you. Just set up a free call to discuss what you need some help with. Email info@goodnessme-nutrition.com