Miley Cyrus defended her latest transformation saying that she suffers from gluten allergy.

“For everyone calling me anorexic I have a gluten and lactose allergy. It’s not about weight it’s about health. Gluten is crapppp anyway!” tweeted a super-slim Miley Cyrus on Sunday, attributing her recent weight-loss to gluten allergy.

She’s now the latest celebrity to endorse a gluten-free diet. Gwyneth Paltrow, Victoria Beckham Ryan Phillippe, Chelsea Clinton and many others who have sworn by the benefits that a gluten-free diet offers in maintaining an enviable figure.

Indeed photographic evidences, that show Ms. Cyrus in a super skinny figure, prove gluten-free diet is working wonders for her. But how good a diet option is it really?

“Everyone should try no gluten for a week! The change in your skin, physical and mental health is amazing! U won’t go back!” a tweet by Miley Cyrus didn’t go down well with the experts.

Gluten is a protein found in wheat, rye, barley and other grains. Recent popularity of gluten-free diet has increased the sales of gluten-free foods. Market research firm Packaged Facts projected in 2011 that sales of gluten-free foods in the U.S. would exceed $5 billion by 2015.

The diet works by cutting-out all foods that contain gluten like wheat, barley, rye and oats. Going on a diet like this would mean avoiding pizza, cookies and most cereals.

A gluten-free diet is ideal for those who have an autoimmune disorder called ‘celiac disease’ where the intestine’s immune response towards gluten triggers diarrhea and other digestive symptoms.

An estimated one in every 133 American suffers from celiac disease.

According to National Institute of Health’s PubMed “celiac disease cannot be cured. However, your symptoms will go away and the villi in the lining of the intestines will heal if you follow a lifelong gluten-free diet. Do not eat foods, beverages, medications that contain wheat, barley, rye, and possibly oats.”

PubMed advises people NOT to start the gluten-free diet before diagnosis as it can affect testing of the disease.

Some experts say that it is possible for some people to have sensitivity towards gluten but not a full-blown allergic reaction that involves antibodies. But, experts say that symptoms are severe in patients with gluten-sensitivity.

Does she have it or does she not, the question remains. At least we now know how the teen sensation managed to morph her body from fat to fit in just a few months.