BBC Countryfile viewers were stunned when the latest episode of BBC series Countryile showed close-ups of maggots and leeches to explore their medical issues.
Presenter Sean Fletcher hosted a special medicinal episode which showed him learning about how they were being used by the NHS to help treat patients.
In certain gruesome parts of the episode, maggots were placed on a patient's foot while maggots were shown sucking pig's blood from a membrane.
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The show also issued a warning to "squeamish" viewers before maggots were placed onto a wound to held fight an infection in their foot.
Sean told viewers: "Just outside of village of Hendy in South Wales, I'm helping Carl on his farm with his blood-sucking livestock.
"We've already exercised the residents, now it's feeding time.
"Leeches in the wild can go over a year without eating but on the farm, these leeches destined for medicinal usage have a feeding schedule to maintain and today, we're giving them a treat."
Carl added: "A small fresh black pudding with some liquid pigs blood. We're going to put it in and they're going to attach to start the feeding."
Carl then started prepping the pig's blood which would be placed in a tube to replicate human skin as he explained: "We used to use natural skin but it's a bit wibbly wobbly so the collagen stuff is really good.
"This is like a membrane they can feed through."
BBC viewers also saw a variety of leeches which can attach to their prey for 30 to 60 minutes.
As soon as the blood was placed into the tank, the leeches attached and fed from the membrane.
Carl explained: "The leech is really designed to take blood efficiently and painless."
Viewers were stunned by the segment as they rushed to social media to share their thoughts, with one saying: "Perhaps #Countryfile isn't the programme to watch whilst eating a Sunday meal."
Another added: "Don't think I can watch this. I don't like things without legs."
A third agreed: "This is making me gip. I might skip tea."
Countryfile airs Sunday on BBC One at 6pm.
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