Body image, body fluids and body functions: Erin's evidence challenged

Cross examination continued for a third day today, with prosecutor Dr Nanette Rogers interrogating Erin Patterson's claims about weight loss surgery and her body functions in the days after the lunch.

Rachael Brown and Stephen Stockwell step through the day's evidence, which ended with a terse exchange between the accused and the prosecutor.

If you've got questions about the case that you'd like Rachael and Stocky to answer in future episodes, send them through to mushroomcasedaily@abc.net.au

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It's the case that's captured the attention of the world.

Three people died and a fourth survived an induced coma after eating beef wellington at a family lunch, hosted by Erin Patterson.

Police allege the beef wellington contained poisonous mushrooms, but Erin Patterson says she's innocent.

Now, the accused triple murderer is fighting the charges in a regional Victorian courthouse. Investigative reporter Rachael Brown and producer Stephen Stockwell are on the ground, bringing you all the key moments from the trial as they unravel in court.

From court recaps to behind-the-scenes murder trial explainers, the Mushroom Case Daily podcast is your eyes and ears inside the courtroom.

Keep up to date with new episodes of Mushroom Case Daily, now releasing every day on the ABC listen app.