Wellington author Lotta Dann is known to many for sharing her experience of quitting alcohol through her blog and books, and the Living Sober website she helped create with more than 50,000 members.
After giving up alcohol she began to gain weight, came across an American diet guru online, and began to think she had an eating addiction.
What followed was two years of extreme dieting - cutting out entire food groups and obsessively weighing portions. The weight fell off her, but no one knew what a toll it was taking.
She began yo-yoing between so-called "good" and "bad" food, feeling ashamed and a failure every time she strayed from the strict regime.
Lotta Dann's new book, Mrs D is Not on a Diet plots her journey through extreme dieting, looks at the billion dollar skinny industry, and shares how she's ditched the food rules and is on a path to peace with her body.