A lot of people go through drastic changes after a break-up, and celebs are no exception.

Former "Beverly Hills, 90210" star Jennie Garth is the latest famous face to shed a ton of weight following her split with hubby Peter Facinelli ... and we think she's starting to take it a little too far.

The 40-year-old graces this week's cover of People, where she admits that she decided to "focus on taking better care of myself" by shedding "30 lbs. of dead weight."

She also recently opened up to "Extra," noting ”I have a new life, I'm taking better care of myself, I'm not sad anymore.”

While we are all for health and feeling good about yourself, we think the gorgeous girl is bordering on too thin! So we gotta ask:

Click "Launch Gallery" above to see more stars who have lost weight.

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