A British woman lives on a diet of only venison and swede.
Clare Greasly claims her body rejects every other foodstuff apart from the deer meat and the vegetable due to a bizarre condition, known as Total Food Intolerance, which has left doctors baffled.
The mother-of-two is quoted by the MailOnline as saying: "Venison and swede are the only foods that give me the mildest reaction. I have to experiment with what I can eat, and I just about seem to be able to cope with those.
"Other than that, I'm limited to rhubarb and dried cherries.
"I used to love my life, running the house, and looking after my teenagers, but now, I barely have the energy to do anything."
The 45-year-old woman is now keen to raise awareness of Total Food Intolerance because she says some people don't believe it exists.
She said: "The only people who seem to understand are people like me. It's like a mixture of having the worst hangover in the world, and being poisoned. You can't understand it unless you've been through it.
"The more people that hear about Total Food Intolerance the better. I need to get the message out there. Even some of my family and friends don't believe me - I barely believe myself!"