Prebiotic Fiber (FOS)
Solid evidence for improved digestion. Not a miracle worker, but genuinely useful for the right person.
Verdict
6/10 Mixed
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
Feeds good gut bacteria to support digestive health.
DOES IT WORK?
6/10 Mixed. FOS is a decent prebiotic fiber that effectively nourishes beneficial gut bacteria, potentially improving digestion and overall gut health. It may not be as potent as some other prebiotic options, but it's generally helpful, especially for those with low fiber intake.
HOW MUCH TO TAKE
2-5 grams daily
COST
Budget-friendly. $20-35/month for quality brands.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Most people notice something by week 2-3.
SAFETY
Few things to check: gas, bloating. Worth mentioning to your doc.
HOW IT FEELS
Users may experience improved digestion, increased regularity, and potentially reduced bloating over time. Initial use may cause some gas or discomfort, which usually subsides as the gut microbiome adjusts.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
How effective is creatine monohydrate at different doses? Here's what the research shows.