Mum's the word for a 3-year-old girl who, thanks to a diet of cream cheese, gained the ability to speak despite a disease that left her mute from birth.

Fields Taylor, from Melton Mowbray in Leicestershire, was born with the incurable genetic disease Glut 1 Deficiency that caused a lack of glucose to flow to her brain. Today, Taylor's diet of four containers of the cream cheese per week gives her a voice. The unique high-fat Ketogenic diet helps her body use fat as an energy source rather than glucose, according to the New York Daily News.

“The amount of Philadelphia she goes through is mad but worth it. It really has been our saving grace. She loves the stuff and piles it on crackers," The Mirror quoted her mother Stevie as saying.

"The first time I heard Fields say 'Mum' it was just wonderful."

Field's parents first noticed something was wrong when she was just 15 weeks old.

“I took her to see the GP when all of a sudden she had a seizure in the waiting room. I was petrified," Stevie Taylor said. "She went really vacant, like she was going into another world."

Doctors originally diagnosed her with epilepsy. A year later they realized she was suffering from the Glut 1.

"I didn't really believe that something so simple as changing her diet could make such a big difference," her mother said.

"It's just fabulous to know that she does have a voice inside her and we can finally communicate."

Glut 1 affects just 26 people in the U.K., according to The Mirror. While there is currently no cure for the disease, a diet high in fats can help victims. Emma Williams, the CEO and Founder of Matthew's Friends, a Ketogenic Dietary Therapies Charity told the Daily News:

"The Ketogenic Diet is really the only treatment there is for Glut 1 DS and sadly there are still patients in the UK that have been diagnosed with Glut 1 DS that are then put on a long waiting list for the treatment -- this is not acceptable as there should be no waiting list for these patients. Fields' story just highlights the difference the correct treatment can make to a person and the Ketogenic Diet can work wonders in these patients and those with drug resistant epilepsy."
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