Heartbroken and stressed out, Katie Holmes has wasted away to a frightening estimated 91 pounds and her desperate daughter Suri Cruise is begging her mother to eat, sources told RadarOnline.com.

The former Dawson’s Creek actress, 41, is on a fanatical mission to slim down and relaunch her floundering modeling career after her humiliating split from Jamie Foxx in May, said tipsters who fear the scary-skinny star has taken things too far.

“Katie is eating little more than celery sticks and lettuce with a handful of seeds and nuts thrown in,” revealed a concerned insider.

“She can’t be taking in more than 500 calories a day and her clothes are hanging off her wire-hanger frame!” added the insider.

Heartbroken Katie Holmes Wasting Away After Humiliating Split From Jamie Foxx_1


Alone Again! Skinny Katie Holmes Poses Solo At Jingle Ball After Jamie Foxx Split

Though healthy Holmes ran the 2007 New York City Marathon in five hours and 29 minutes, sources said short walks now leave her wheezing and energy-sapped.

“She gets out of breath very quickly now, and under her makeup she’s gaunt and gray,” said the insider.

Sources also said twiggy Holmes has been hell-bent on dropping even more weight to compete for high-end campaigns with top designers — and is especially concerned because her bestie Zac Posen shut down his label in November after she’d previously starred in his fall fashion launch.

“Katie was counting on Zac, and now she needs to go out and find new accounts — which means more pressure,” the insider said. “She’s also convinced herself her acting career is going nowhere!” 

Heartbroken Katie Holmes Wasting Away After Humiliating Split From Jamie Foxx_2


Escape From New York! ‘Hippy’ Katie Holmes Ditching City Living For Countryside

According to sources, shattered Holmes, whose rep denied Radar’s story, has also been battling self-esteem issues since she and Foxx ended their six-year relationship. The skirt-chasing stud has since been spotted with a string of glamorous gals.

“She really thought they were going to get married, and now she feels like a world-class fool,” the insider said. “Her confidence has been crushed, and she’s overcompensating with all this crazy dieting!”

Holmes’ weight loss has so scared Suri — her daughter with ex-husband Tom Cruise — the teen has been baking her cookies and cakes, which the calorie-counter refuses to eat, sources claimed.

Heartbroken Katie Holmes Wasting Away After Humiliating Split From Jamie Foxx_3


Twinning! Katie Holmes Posts Rare Photo With Mini-Me Daughter Suri Cruise

“Suri is only 13, but she’s old enough to realize if her mom doesn’t put on weight and gain more energy, she might collapse,” a source said.

And a doctor consulted by Radar agrees.

“She looks absolutely scrawny,” said weight loss specialist Dr. Stuart Fischer, author of The Park Avenue Diet.

“She shows the signs of someone who has lost far too much weight — and she’s taking in fewer calories than her body needs,” continued Fischer, who has not treated Holmes. 

“If she’s not eating enough, she will end up with low potassium that can cause life-threatening heart disturbances. Suri is right to be concerned!” he added.