Are Bananas Low FODMAP? Here's the Scoop for Sensitive Stomachs

The FODMAP content in bananas actually depends on how ripe they are. Yep, that bright yellow banana on your counter is very different (in FODMAP terms) from the slightly green one you just bought.

Let’s break it down so you can make the best choice for your gut.

Ripe vs. Unripe: The Key Difference

According to Monash University, the world leader in FODMAP research, unripe (or just-ripe) bananas are low FODMAP in moderate amounts. However, ripe bananas become high FODMAP as their sugar profile changes.

Why? As bananas ripen, the starches begin to convert into sugars—especially fructans, a type of oligosaccharide that can be hard to digest for people with IBS.

Here’s a quick reference:

• Unripe or just-ripe bananas (slightly green or yellow with no spots)
  → Low FODMAP at up to 1 medium banana (about 100g)
• Ripe bananas (yellow with brown spots or soft texture)
  → High FODMAP, especially in servings over 1/3 of a banana

So, the greener the banana, the more likely it is to be gut-friendly.

What About Banana Chips or Mashed Banana?

Good question! Banana chips are often made from ripe bananas and can be high in FODMAPs. Plus, they’re often fried in oil or sweetened, which adds more variables.

Mashed bananas—such as in smoothies, baking, or baby food—are also usually made with ripe fruit, meaning they’re typically high FODMAP unless you carefully measure and use an unripe banana.

In general, whole, unripe bananas are your safest bet.

Nutritional Benefits of Bananas

Bananas are more than just convenient—they’re also packed with nutrients that can support your overall health. A medium banana contains:

• Potassium – Supports heart and muscle function
• Vitamin B6 – Aids in metabolism and brain health
• Fiber – Helps support digestion
• Natural energy – Great for pre- or post-workout snacks

Even when you're managing IBS, it's still important to get those key nutrients—and bananas can be a great source when eaten in the right form and amount.

Tips for Including Bananas on a Low FODMAP Diet

• Choose slightly green or firm bananas for snacks or oatmeal toppings
• Keep portions at 1 medium banana (100g) or less during elimination
• If you're craving sweetness, pair it with low FODMAP ingredients like oats, peanut butter, or lactose-free yogurt
• Avoid using ripe bananas in smoothies or baking until you’ve completed the reintroduction phase

Final Thoughts: Can You Eat Bananas on a Low FODMAP Diet?

Yes—but timing and ripeness matter. If you stick to just-ripe or slightly underripe bananas, you can enjoy them safely within the low FODMAP guidelines. Once your bananas are spotted and soft, it’s best to limit the portion—or hold off entirely during the elimination phase.

Bananas are one of the more flexible fruits on the FODMAP chart, making them a great option for those trying to eat more intuitively while still avoiding triggers.

‍