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Prevention is Cure Podcast
#38 Why You Should Give A Sh*t About Fibre

#38 Why You Should Give A Sh*t About Fibre

Prevention is Cure vor 6 Monaten

0:00

46:27

Is fibre actually the health hero we've been told it is? Prof.
Grant Schofield and Kayla dive deep into the science behind fibre
recommendations and expose how food companies game the system.
From the surprising truth about constipation to why cows eating
grass end up on a high-fat diet, this episode challenges
everything you thought you knew about fibre.Key Takeaways:• Why
dietary fibre guidelines might be doing more harm than good• How
food manufacturers add fibre to junk food to make it seem
healthy• The real reason people in East Africa had fewer chronic
diseases (spoiler: it wasn't just fibre)• What happened when
researchers put people on a ZERO fibre diet for constipation• Why
focusing on "eat real food" beats obsessing over fibre
gramsTimestamps0:05 - Introduction: The least sexy topic in
nutrition science1:09 - Why dietary guidelines actually matter
(hospitals, schools, prisons)2:19 - The three big nutrition
mistakes: saturated fat, red meat, and salt6:19 - The "giant
scrubbing brush" theory and where the fiber hypothesis came
from7:37 - The Inuit counter-argument: No fibere, no disease8:44
- Leaded petrol: The confounding variable everyone forgot12:06 -
The donut fibre scam: How food companies game health ratings15:33
- Understanding relative vs absolute risk (the 1% reality
check)17:29 - Two plausible mechanisms: The viscous gel
pathway18:55 - Short chain fatty acids and gut bacteria19:54 -
Cows and gorillas: The high-fat diet from grass23:30 - The
constipation paradox: Does fiber actually help?24:51 - The zero
fibre diet study that shocked everyone26:08 - Mendelian
randomization: The "genetically predicted fiber intake"
problem31:30 - Vision of the anointed: When interventions fail,
do more of the same33:03 - The Women's Health Initiative: The
biggest fiber trial that did nothing36:30 - What to do instead:
Focus on ultra-processed food41:08 - Three take-home messages
about fiber42:00 - Grant's simple dietary guidelines43:04 - The
farting observation: What your body tells you about fiber43:59 -
Post-episode: What should you actually change?