Wheat Germ

High FODMAP

By Michael EisenwasserUpdated October 6, 2026

Serving sizes

Wheat Germ changes rating with portion size. These are the amounts tested in the literature behind our ratings.

About 4g Low
Larger portions Moderate
Much larger portions High

Fructans GOS

Wheat germ is High FODMAP at a usual serving, though about 4g is low.

At about 4g, a light sprinkle, wheat germ is low.
As a dense wheat fraction it carries Fructans and GOS, reaching moderate at larger portions and high at much larger portions.
It turns up sprinkled on cereal, stirred into yogurt, or baked into breads and muffins, so watch how much sneaks in.

For a nutty topping, reach for oats or a spoonful of chia or ground flax instead.

Why wheat germ is rated high

Wheat germ is high FODMAP, and fructans and GOS are the reason. It is not whole wheat but a concentrated fraction of the kernel, sold as a fine, dense flake that people add by the spoonful on top of food that is already a meal, so the fructans and GOS arrive in a compact form. The ladder climbs fast: about 4g is low, larger portions are moderate and much larger portions are high. About 4g is a light sprinkle, far less than the spoonful most people tip on, which is why wheat germ is rated high overall.

What changes your risk

Serving size, and it climbs early This is the whole story for wheat germ. About 4g is low, larger portions are moderate and much larger portions are high, so the sprinkle that looks harmless on a bowl of oats is often already past the low serve.
Stacking with other fructan foods Fructans in one meal add together. Wheat germ on top of a wheat cereal, alongside toast, or stirred into a smoothie next to an apple or a clove of garlic in the next dish builds a fructan load that none of those foods would reach alone.
It hides as a booster Wheat germ is added to multigrain and high-fibre breads, bran cereals, protein and breakfast bars, smoothie powders, wheatgerm-enriched flours and meatloaf binders. It rarely announces itself on the front of a pack, so the ingredient list is where to find it.
It carries GOS as well Wheat germ brings GOS alongside its fructans, so legumes, soy products, cashews and pistachios in the same meal add to the load from a second direction. A muesli with wheat germ and soy flakes, or a smoothie with wheat germ and a cashew butter, stacks both groups at once.
Toasting and baking do not help Fructans survive heat. Toasting wheat germ for a nuttier flavour, baking it into muffins or stirring it into hot porridge leaves the fructans exactly where they were. Boiling in plenty of water and pouring the water away does remove some water-soluble FODMAPs from some foods, but wheat germ is eaten along with whatever it was stirred into, so nothing gets poured away.

Swaps

For the nutty sprinkle on yoghurt, porridge or a smoothie bowl, rolled oats or quinoa flakes give the same soft grain texture, and toasted pumpkin seeds, chopped walnuts, pecans, macadamias or peanuts give the crunch and the nuttiness that wheat germ was there for. In baking, oat flour, buckwheat flour, polenta and gluten free flour blends fill the role of a wheat germ addition in muffins and loaves. For bread itself, gluten free bread is the one to look for, rather than a multigrain loaf that has wheat germ added to it. Do not reach for bran cereals, wheat bran or ordinary wheat flour as a substitute, since they share the same fructans.

How to lower the load

The main work here is label reading rather than portioning, because wheat germ is usually something added to a product rather than something you buy. Scan ingredient lists for wheat germ, toasted wheat germ and wheatgerm-enriched flour on multigrain and high-fibre bread, bran and toasted cereals, breakfast and protein bars, smoothie boosters and baking mixes. In recipes it appears as a topping or a binder, and both jobs are easy to reassign: swap it out for oats, ground polenta or seeds before you start rather than trying to measure it down to about 4g. If someone else is doing the baking, wheat germ is worth naming specifically when you ask what is in it, since people often think of it as a health addition rather than as wheat.

Common questions

is wheat germ low fodmap

No, wheat germ is rated high FODMAP. About 4g, a light sprinkle, is low, but larger portions are moderate and much larger portions are high, so the amounts people usually add go past the low serve.

is wheat germ high in fructans

Yes. Fructans drive the rating alongside GOS, and because wheat germ is a concentrated fraction of the wheat kernel they arrive in a compact form, which is why portions larger than about 4g are already moderate.

can you eat wheat germ in the elimination phase

About 4g is low, but that is a very light sprinkle and larger portions are moderate, so wheat germ is easier left out during the elimination phase. Reintroduction of fructan foods is something to work through with a dietitian rather than testing on your own.

what can i use instead of wheat germ on cereal or yoghurt

Rolled oats or quinoa flakes give the grain texture, and toasted pumpkin seeds, chopped walnuts or pecans give the nutty crunch. Avoid wheat bran and bran cereals, which carry the same fructans.

Learn more

Where this rating comes from

Wheat Germ is rated from published lab measurements of its FODMAP content, using the low, moderate and high cutoffs of Varney et al. (2017).

Feedback sent through the FODMAP Foods app has led to changes in this list.

See our full rating method →

Sources

Fructan and free fructose content of common Australian vegetables and fruit. Muir et al. (2007), J. Agricultural and Food Chemistry 55(16):6619-6627.
Measurement of short-chain carbohydrates in common Australian vegetables and fruits by high-performance liquid chromatography (HPLC). Muir et al. (2009), J. Agricultural and Food Chemistry 57(2):554-565.
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.
Dietary sorbitol and mannitol: food content and distinct absorption patterns between healthy individuals and patients with irritable bowel syndrome. Yao et al. (2014), J. Human Nutrition and Dietetics 27(Suppl 2):263-275.
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.