Nutrition
Fructooligosaccharides (FOS)
Fructooligosaccharides (FOS) feed gut bacteria but trigger bloating in some IBS cases—balance prebiotic benefits with personal FODMAP tolerance.
Fructooligosaccharides (FOS) are short-chain prebiotic fibers in onions, garlic, asparagus, chicory, and many functional foods. They fuel beneficial fermentation but rank high on FODMAP lists for IBS-sensitive people.
Cooking does not fully remove FOS, so elimination trials use portion control and reintroduction testing.
Common questions
-
Should everyone avoid FOS-rich onions and garlic?
No—only people with confirmed FODMAP triggers during structured reintroduction. Many athletes tolerate them with gradual ramps and adequate hydration.
Related terms
Put Fructooligosaccharides (FOS) into practice
Ohga connects nutrition, fitness, focus, and habits with an AI copilot that learns your patterns. Join the waitlist for early access.