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Ingredient Substitutes

Out of low fodmap onion?

Low FODMAP Onion Substitute: IBS and Digestive Health

Use this

Green Onion Tops (Green Parts Only)

Use the same amount as the low fodmap onion you are replacing

Best for when you want FODMAP-free flavor

The best low FODMAP onion substitutes are green onion tops (1:1), chives (1:1), or asafoetida powder (1/4 tsp per onion). Green onion tops are FODMAP-free, while asafoetida provides onion-like flavor without FODMAPs.

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Low FODMAP Onion substitutes compared
#SubstituteInstead of low fodmap onion, use
1Green Onion Tops (Green Parts Only)Same amount
2ChivesSame amount
3Asafoetida Powder¼ tsp per onion
4Leek Tops (Green Parts Only)Same amount
5Onion-Infused OilSame amount
6Garlic-Infused OilSame amount
7FennelSame amount

Every low fodmap onion substitute

Ranked, with the exact amount and what changes

Substitutes for Low FODMAP Onion

  1. 1. Green Onion Tops (Green Parts Only)

    Use the same amount

    Green onion tops are FODMAP-free and provide similar flavor to onions.

    What changes

    Use only the green parts, not the white bulb, as the white part contains FODMAPs.

    Best for
    when you want FODMAP-free flavor, garnishing, finishing dishes, when you want similar appearance, soups, salads
    Taste
    mild onion flavor
    Texture
    delicate and tender

    Green onion tops are FODMAP-free and provide similar flavor to onions. Use only the green parts, not the white bulb, as the white part contains FODMAPs.

  2. 2. Chives

    Use the same amount

    Chives are FODMAP-free and provide similar flavor to onions.

    What changes

    They're perfect for garnishing and finishing dishes without triggering FODMAP symptoms.

    Best for
    garnishing, finishing dishes, when you want FODMAP-free flavor, soups, salads, dips and spreads
    Taste
    mild onion flavor
    Texture
    delicate and tender

    Chives are FODMAP-free and provide similar flavor to onions. They're perfect for garnishing and finishing dishes without triggering FODMAP symptoms.

  3. 3. Asafoetida Powder

    Use ¼ tsp for every onion

    Asafoetida powder provides onion-like flavor without FODMAPs.

    What changes

    It's a traditional Indian spice that's perfect for low FODMAP cooking.

    Best for
    when you want onion-like flavor, cooking, when you want to avoid FODMAPs, Indian cuisine, when you want concentrated flavor, seasoning
    Taste
    onion-like flavor
    Texture
    powder

    Asafoetida powder provides onion-like flavor without FODMAPs. Use sparingly as it's very potent. It's a traditional Indian spice that's perfect for low FODMAP cooking.

  4. 4. Leek Tops (Green Parts Only)

    Use the same amount

    Leek tops are FODMAP-free and provide similar flavor to onions.

    What changes

    Use only the green parts, not the white bulb, as the white part contains FODMAPs.

    Best for
    when you want FODMAP-free flavor, cooking, when you want similar flavor, soups and stews, stir-fries, roasting
    Taste
    mild onion flavor
    Texture
    tender when cooked

    Leek tops are FODMAP-free and provide similar flavor to onions. Use only the green parts, not the white bulb, as the white part contains FODMAPs.

  5. 5. Onion-Infused Oil

    Use the same amount

    Onion-infused oil provides onion flavor without FODMAPs.

    What changes

    The FODMAPs are water-soluble and don't transfer to the oil, making it safe for low FODMAP diets.

    Best for
    when you want onion flavor, cooking, when you want to avoid FODMAPs, sautéing, roasting, marinades
    Taste
    onion flavor
    Texture
    oil

    Onion-infused oil provides onion flavor without FODMAPs. The FODMAPs are water-soluble and don't transfer to the oil, making it safe for low FODMAP diets.

  6. 6. Garlic-Infused Oil

    Use the same amount

    Garlic-infused oil provides garlic flavor without FODMAPs.

    What changes

    The FODMAPs are water-soluble and don't transfer to the oil, making it safe for low FODMAP diets.

    Best for
    when you want garlic flavor, cooking, when you want to avoid FODMAPs, sautéing, roasting, marinades
    Taste
    garlic flavor
    Texture
    oil

    Garlic-infused oil provides garlic flavor without FODMAPs. The FODMAPs are water-soluble and don't transfer to the oil, making it safe for low FODMAP diets.

  7. 7. Fennel

    Use the same amount

    Fennel provides a mild, sweet flavor similar to onions and is low in FODMAPs.

    What changes

    It's perfect for adding sweetness and mild onion-like flavor to dishes.

    Best for
    when you want mild flavor, cooking, when you want sweetness, soups and stews, stir-fries, roasting
    Taste
    mild and sweet
    Texture
    crisp when raw, tender when cooked

    Fennel provides a mild, sweet flavor similar to onions and is low in FODMAPs. It's perfect for adding sweetness and mild onion-like flavor to dishes.

This page covers one situation. For the full ranked comparison, see all 6 onion substitutes.

How low fodmap onion differs

Low FODMAP onion substitutes are essential for people with IBS and digestive issues. FODMAPs are fermentable carbohydrates that can trigger digestive symptoms. When you need a substitute for onions on a low FODMAP diet, there are several excellent alternatives that can work without triggering symptoms.

Tips

  • Low FODMAP onion substitutes are essential for people with IBS and digestive issues
  • Green onion tops and chives are FODMAP-free and provide similar flavor
  • Asafoetida powder is a traditional Indian spice that provides onion-like flavor
  • Onion-infused oil provides onion flavor without FODMAPs
  • Leek tops are FODMAP-free and provide similar flavor to onions
  • Fennel provides mild, sweet flavor similar to onions
  • Garlic-infused oil provides garlic flavor without FODMAPs
  • Always use only the green parts of green onions and leeks
  • Avoid the white bulbs of green onions and leeks as they contain FODMAPs
  • Use asafoetida powder sparingly as it's very potent
  • Onion-infused oil is perfect for sautéing and roasting
  • Chives are perfect for garnishing and finishing dishes
  • Green onion tops are perfect for adding color and flavor
  • Fennel is perfect for adding sweetness to dishes
  • Always check FODMAP content of ingredients before using

Notes on low fodmap onion

  • Use different types of FODMAP-free herbs for variety
  • Try using different types of infused oils for unique flavors
  • Use different types of low FODMAP vegetables for variety
  • Consider using different types of spices for unique flavors
  • Mix different types of FODMAP-free ingredients for balanced flavor
  • Use different types of chives for variety
  • Try using different types of fennel for variety

Questions

What is the best low FODMAP substitute for onions?

The best low FODMAP substitute for onions is green onion tops (green parts only) as they're FODMAP-free and provide similar flavor. Chives and asafoetida powder are also excellent alternatives.

Can I use green onions on a low FODMAP diet?

Yes, you can use green onions on a low FODMAP diet, but only the green parts. The white bulb contains FODMAPs and should be avoided. The green tops are FODMAP-free and provide similar flavor.

Can I use chives on a low FODMAP diet?

Yes, you can use chives on a low FODMAP diet as they're FODMAP-free. They provide similar flavor to onions and are perfect for garnishing and finishing dishes.

What is asafoetida powder?

Asafoetida powder is a traditional Indian spice that provides onion-like flavor without FODMAPs. It's very potent, so use sparingly - about 1/4 teaspoon per onion.

Can I use onion-infused oil on a low FODMAP diet?

Yes, you can use onion-infused oil on a low FODMAP diet. The FODMAPs are water-soluble and don't transfer to the oil, making it safe for low FODMAP diets.

Can I use leeks on a low FODMAP diet?

Yes, you can use leeks on a low FODMAP diet, but only the green parts. The white bulb contains FODMAPs and should be avoided. The green tops are FODMAP-free and provide similar flavor.

What can I substitute for onions in soup on a low FODMAP diet?

For soup on a low FODMAP diet, you can use green onion tops, chives, asafoetida powder, or onion-infused oil. All provide similar flavor without triggering FODMAP symptoms.

Can I use fennel instead of onions on a low FODMAP diet?

Yes, you can use fennel instead of onions on a low FODMAP diet. Fennel provides a mild, sweet flavor similar to onions and is low in FODMAPs.

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