When did Catalyst Season 18 Episode 11 air?
Catalyst Season 18 Episode 11 aired on October 24, 2017.


Catalyst is Australia's premier science investigation series. Each week the team brings you stories from Australia and around the world, meeting scientists at the forefront of discovery.

Garry has tried to lose weight, but could his gut bacteria be keeping him fat? Nutrition scientist Dr Joanna McMillan explores controversial science suggesting gut bacteria might be affecting our appetites and mood.
Direct answers for episode-level questions and details.
Catalyst Season 18 Episode 11 aired on October 24, 2017.
This episode runs for approximately 55 minutes.
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