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Yeast Extract

Low FODMAP

Serving sizes

Yeast Extract changes rating with portion size. Its rating is estimated from what it is made of, so the servings are described rather than weighed.

  • Small serving Low
  • Large serving Moderate

Yeast extract is Low FODMAP at the thin spread most people use, since it is mostly protein and savory glutamates with very little fermentable carbohydrate.

  • The concentrated paste carries minimal FODMAP carbohydrate, so a small serving stays low, but the overall FODMAP load builds up if you pile on a large serving, nudging it to moderate.
  • It comes as a thick, salty spread and a flavor booster in stocks and gravies, and a little goes a long way, so the amount you reach for is what really matters here.

Use it the way it is meant to be used, spread thin on toast or stirred sparingly into a sauce, and you get all that savory depth while staying comfortable.

Why yeast extract is rated low

Yeast extract is low FODMAP overall, an estimate based on what it is made of rather than a measured serving. It is mostly protein and savoury glutamates with very little fermentable carbohydrate, which is why a Small serving comes in low. That low rating has a ceiling, though. As the amount grows, the overall FODMAP load builds, and a Large serving reads moderate. Because it is so concentrated and salty, the amount people actually use is usually small, which is where it stays low.

What changes your risk

  • How much you use A Small serving is low and a Large serving is moderate. Spreading it thickly or piling it into a single portion moves you up the ladder.
  • Stock cubes, gravy mixes and seasoning blends Yeast extract is a common flavour base in bouillon, gravy granules, instant soups and savoury snack seasoning, and those products often add onion and garlic powder. The onion and garlic, not the yeast extract, are usually what push them high.
  • What it is spread on On toast, the bread underneath matters as much as the spread. Ordinary wheat toast brings its own load, while gluten free bread or traditional sourdough spelt keeps the base lower.
  • Stirred into a pot versus one portion Yeast extract dissolved into a whole pot of stew or soup is shared across every portion. The same amount stirred into one person's portion lands on that person as a Large serving.
  • The rest of the meal A low serving still counts toward the total. Several savoury, seasoned components in one meal can add up even when each one looks modest.

What else works

The lookalikes to watch are the products built around yeast extract rather than the spread itself: stock cubes, bouillon powders, gravy mixes, instant noodle seasoning and flavoured crisps frequently carry onion or garlic, and those are not low. For savoury depth that stays low, combine yeast extract at a Small serving with grated parmesan or cheddar, garlic-infused oil, chives or the green tops of spring onions, and a homemade stock made without onion or garlic. Plain meat, poultry and fish cooking juices also add the same meaty flavour without a seasoning blend.

How to keep it low

Treat the jar as a seasoning rather than a filling: spread it thinly and evenly across the toast rather than in thick patches, and when cooking, add it to the pot gradually and taste as you go so the amount per portion stays at a Small serving. When buying stock or gravy products that list yeast extract, read the rest of the label for onion, garlic or a generic seasoning entry, and choose versions that are free of them. A homemade stock with carrot, leek leaves and garlic-infused oil, finished with yeast extract, covers most of what a stock cube does.

Common questions

is yeast extract low fodmap

Yes, it is rated low FODMAP overall, estimated from what it is made of. A Small serving is low, while a Large serving reads moderate.

how much yeast extract can i have on a low fodmap diet

A Small serving is low. A Large serving reads moderate, so a generous helping is where it stops being low.

are stock cubes with yeast extract low fodmap

Not necessarily. Many stock cubes and gravy mixes pair yeast extract with onion and garlic powder, which are high, so check the full ingredient list.

what gives savoury flavour like yeast extract on low fodmap

Parmesan, garlic-infused oil, chives and a homemade stock made without onion or garlic all add savoury depth and are low FODMAP options.

Try FODMAP Foods

Scan any food with your camera, search every rating in this list, and see your safe portion before you eat.

Learn more

What Are FODMAPs? A Plain-English Guide Low FODMAP Elimination Phase: A Week-by-Week Guide FODMAP Stacking: Why You Reacted to 'Safe' Foods How to Read Food Labels on Low FODMAP

Informational only, not medical advice. Individual tolerance varies. Talk to a healthcare professional or a dietitian for personal guidance.

Yeast Extract is an estimated rating: it is inferred from the food's ingredients and composition and cross-checked, not measured directly in the papers below. The low, moderate and high cutoffs are still those of Varney et al. (2017).

References

  1. Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
  2. Measurement of short-chain carbohydrates in common Australian vegetables and fruits by HPLC. Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
  3. Quantification of fructans, galacto-oligosaccharides and other short-chain carbohydrates in processed grains and cereals. Biesiekierski et al. (2011), J. Human Nutrition and Dietetics 24(2):154-176.
  4. Dietary sorbitol and mannitol: food content and distinct absorption patterns. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
  5. FODMAPs: food composition, defining cutoff values and international application. Varney et al. (2017), J. Gastroenterology and Hepatology 32(Suppl 1):53-61. Supplies the low, moderate and high cutoffs used on this page.

Last reviewed October 17, 2026.