Demi Moore's daughters are reportedly concerned about their mother's health following the breakup of her marriage to Ashton Kutcher and her subsequent stay in rehab.

Although her three children have been supportive about her ordeal, they are now said to be worried she may be slipping back into poor habits.

An insider told RadarOnline that Demi's weight and recent behaviour has them troubled.

"Rumer, Scout and Tallulah are growing apart from their mother lately," the source said. "They're really worried about everything she is doing lately and they're getting mad at her."

"Demi has been doing things that make them worry that maybe she isn't staying sober and they're not happy about her behaviour."

The Hollywood actress recently attended Tallulah's high school graduation and sources said the atmosphere was "really tense" between them.

"Demi and the three girls are not close right now and their relationship is strained with a lot of bad feelings," the insider added. "Things need to change so that Demi's daughters can feel better about her."