Gillian McKeith is to enter the 'Celebrity Big Brother' house.

Gillian McKeith

Gillian McKeith

The 'You Are What You Eat' nutritionist, who has earnt the nickname 'Dr Poo' by inspecting people's poop to assess their diet, is set to shake things up in the infamous abode by enforcing a strict ban on sugar, alcohol and cigarettes.

A source told The Daily Star newspaper: "The show will end up being nicknamed Celebrity Bog Brother.

"Gillian is going to cause havoc in there with her rule book. Expect tears, tantrums and walkouts. It is bound to tip some housemates over the edge."

Gillian's rumoured arrival comes just a week after David Gest and the late David Bowie's ex-wife Angie Bowie decided to leave the turbulent house due to poor health.

It's not known for sure when the tough-talking health guru, 56, will join the housemates but it's thought she could enter as a special guest in tonight's episode (26.01.16) when the celebrities get stuck in to a new shopping task.

Meanwhile, 'Celebrity Big Brother' presenter Emma Willis set tongues wagging about a new housemate earlier this week when she teased the "soon" arrival of a contestant.

Initially, fans thought Stephanie Davis' boyfriend Sam Reece had agreed to enter in a bid to confront the actress about her flirtatious antics with model Jeremy McConnell.

However, Sam poured cold water on the rumours earlier this week but wished the person - now known to be Gillian - who is entering the "mad house" the best of luck.

He said on Twitter: "It's not me but good luck whoever goes into the mad house (sic)."