Snooki's Scary Anorexia Secrets EXPOSED! Ice Cube Diet, One Grape Per Day & An Unhealthy Weight 'Obsession'-- 'I Was So Weak'

Nicole "Snooki" Polizzi's eating disorder became so serious, she once dipped down to just 90 pounds. The MTV reality star, now a 27-year-old mother of two, comes clean about her anorexia struggle in her new tell-all, Strong Is the New Sexy.

As a high school student in her native New York, Polizzi claims she "starved" herself by eating "just one cracker a day."

She claims she wanted to be the school's best cheerleader by becoming nearly weightless. However, "I was so weak and exhausted I could barely get through a practice," she confesses.

The school nurse grew concerned that Polizzi was weighing herself every day, and promptly alerted her parents, Andy and Helen. They forced her to see a doctor, she recalls.

"As a mother, it's not easy to watch your child struggle with something like an eating disorder," Helen writes in the book, adding that she was "under a lot of pressure with cheerleading" and "social situations."

The doting mom reveals that her daughter ate just ice cubes and one grape all day.

But now, "she eats three meals a day with snacks," Helen claims.