Chrissy Teigen is opening up about her decision to quit drinking.
On Tuesday, the "Cravings" cookbook author revealed that she's "4 weeks sober" after a fan commented under an upbeat Instagram video of her dancing.
On her Instagram Stories Wednesday, Teigen shared a picture of a book that prompted her lifestyle change: Holly Whitaker's "Quit Like a Woman: The Radical Choice to Not Drink in a Culture Obsessed with Alcohol."
"One month ago, on my birthday, I got this book from my doctor and friend," wrote Teigen, who turned 35 on Nov. 30. "I was done with making an (expletive) of myself in front of people (I'm still embarrassed), tired of day drinking and feeling like (expletive) by 6, not being able to sleep."
She added that she's been "sober ever since."
Teigen encouraged her followers to give the book a read "even if you can't see yourself doing it or just plain don't want to" because it's "an incredible read."
Whitaker reshared Teigen's post, adding, "thank you a thousand times over for sharing your humanity and multitudes, always," the author wrote. "infinite gratitude for you sharing my work. With you, with you, with you."
Teigen is celebrating the New Year in St. Bart's with husband John Legend and their two children: daughter Luna, 4, and Miles, 2. The couple suffered a pregnancy loss in September.
'I love my wife more than ever': John Legend, Chrissy Teigen's marriage stronger after loss
On Nov. 27, days ahead of her 35th birthday, Teigen reflected on the past "brutal, exhausting, sad, physically challenging, mentally painful (expletive) of a couple months."
But the mother-of-two said the silver lining is that she can find "humor" in her recovery.
Chrissy Teigen reflects on pregnancy loss, calling parts of her journey 'frustrating,' 'sad'
This article originally appeared on USA TODAY: Chrissy Teigen reveals she's '4 weeks sober': Why she quit drinking