Bookmaker Ladbrokes said that support for the increasingly chunky transgender woman from Portugal is growing.
Ladbrokes spokesman, Warren Lush, said: "Support for Nadia to win continues and her odds have been cut from 4/9 to 1/3. In contrast, her nearest rival Dan's odds have drifted from 3/1 to 4/1."
There has been no change for floppy-haired Stuart, dubbed "Stu-pid", on 7/1, nor for posh art student Shell and lone jungle cat Jason, both on 16/1 to win the competition.
Geordie bunny boiler Michelle, who has developed a compulsive attachment to Stu, has seen her chances of winning drift even further from 33/1 to 50/1, as the chance of her eviction tomorrow night looks even more likely. She is now 1/6 favourite to go, from 4/7.
"The money keeps coming for Michelle, everyone thinks she's certain to walk. She has sealed her own fate, less obsessing over Stu could have saved her," Lush said.
Meanwhile, bets for Jason to go have dwindled with his odds of 5/4 yesterday drifting to 7/2.
Shell, Stuart, Dan and Nadia are rank outsiders to go with odds of 50/1.
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