Scoop

From newspapers to Twitter, speculation has been rampant this week over Madonna's shockingly sinewy arms since the photos emerged on Monday.

It wasn't so long ago that women all over the world envied the singer's stunning figure, but not anymore! Now everyone wants to know what happened, and how to avoid looking like a skeleton on steroids.

It's clear that the 50-year-old's obsessive exercise regimen and strict sugar - and gluten-free - diet are causing her to literally waste away. Despite appearing underweight, she continues to work out religiously (two hours a day, six days a week) with trainer Tracy Anderson, who has reportedly barely left Madge's side since her divorce from Guy Ritchie last November.

Is the Material Girl's hardcore gym schedule to blame, or are the years just finally catching up with her? Nutritionist Majid Ali (who has not worked with the star) tells BettyConfidential.com that her startling vein-popping look is caused by a dangerous combination of a low body-fat percentage, low-carb diet, too much working out and, inevitably, age, as she approaches her 51st birthday on August 16.