Lohan is living at the Betty Ford Clinic under court-ordered rehab. Lohan initially chose the facility because they would not necessarily make her stop taking Adderall, a drug used to treat Attention Deficit Disorder.
Doctors determined that Lohan may have been misdiagnosed, however, and took her off the drug. Adderall is commonly abused off-label for its appetite suppressant qualities.
Lohan has put on five pounds since being taken off the drug, and sources at Radar say that she is finding comfort in food as she copes with the emotional effects of being in rehab.
A nutritionist is working with Lohan on eating healthier foods, and ensuring her exercise regimen is appropriate.