Demi Moore, slim appearance at Lifetime Five premiere.

Demi Moore was never been large, but last night she looked a shadow of her former self as she attended the Lifetime movie Five premiere in New York.

Demi Moore donned a black geometric print dress which highlighted her incredibly slender frame as she posed on the blue carpet for the event.

The fitted black dress hung off her once feminine curves, while the short-sleeved look drew attention to Demi Moore‘s incredibly muscular arms.

Demi Moore looked a shadow of her former self at the premiere of Lifetime movie Five in New York last night

The 48-year-old actress’ appearance at the event comes as nutritionist Dr. Majid Ali told gossip website Radaronline.com that he believes Demi Moore has been spending “too much time in the gym and too little time at the dinner table”.

Dr. Majid Ali added he believes Demi Moore’ slender look is down to overdoing it in the gym rather than cutting down on what she eats.

“It looks more like over training with restricted calories, than an eating disorder.

“She doesn’t have that wasted loss of muscle eating disorder look, but she could be over training. I certainly wouldn’t want her any thinner.”

Dr. Majid Ali’s comments come in the wake of Demi Moore admitting she used to be “obsessed” with the way her body looked.

The mother-of –three actress said: “I had an extreme obsession with my body. I made it a measure of my own value.

“I tried to dominate it, which I did, and I changed it multiple times over.

“But it never lasted and ultimately it didn’t bring me anything but temporary happiness. Does being thin resolve anything? No.

“The irony is that when I abandoned that desire to dominate my body, it actually became the body that I always wanted.”

Demi Moore has been working hard on her health in recent months, and revealed earlier this year she had undertaken a strict detox plan with her husband Ashton Kutcher.

Demi Moore, 48, and Ashton Kutcher, 32, followed the Master Cleanse diet, which involves consuming only a concoction of water, lemon, maple syrup and cayenne pepper for ten days.

Gwyneth Paltrow and Beyonce Knowles, who are fans of the detox plan, claim it eliminates toxins from the body and helps stop cravings.

However, critics say the detox plan may be bad for your health and deprives the body of energy, providing 600 calories daily – a third of the recommended amount.

Demi Moore was joined at last night’s premiere by stars including Jennifer Aniston.

Demi Moore and Jennifer Aniston are just two of the names who have directed anthologies included in Lifetime movie Five, exploring the impact of breast cancer on people’s lives.