New photographs of Sarah Palin looking incredibly thin have surfaced online, though the former governor of Alaska assured fans - via People magazine - that she is 100% fit and healthy.

In fact, she's feeling so great about herself that she's ready to release a new fitness book. Palin, 48, has been known to thrown dinner parties featuring a whole host of delicious cakes - from chocolate cream pies to lemon meringues - though it appears the whole family is cutting down. Palin says the book will feature contributions from all of the clan, "Our family is writing a book on fitness and self-discipline focusing on where we get our energy and balance as we still eat our beloved homemade comfort foods!" she said in an email announcing the project. The former Governor describes the book as "unique", adding, "We promise you what we do works and allows a fulfilling quality of life and sustenance anyone can enjoy." For now, there's very little detail as to what the book will actually contain, though judging by the latest photographs of Palin (who looks like she's just walked off the set of The Real Housewives), it may well be a hard sell.

To be fair, if the book fails, Palin could always, say, run for President in 2016? Quizzed by Extra TV this week as to her plans to make a run for the White House, Palin coyly offered, "I don't know. I'm not sure what the future holds."