Having suffered from anorexia in my teens and early 20s (and then going completely the opposite way!) I can safely say LL is nothing like it! No mental anguish, depression, body dysmorphia, self hatred and and inability to see anything past working out how you're going to trick people into making them think you're eating. Funnily enough, it's not an illness that GPs recommend. Unlike LL!
On LL I have been in control, happy, healthy and have developed the most healthy attitude towards food I have ever had in my life.
I try not to think about what I went thorough too much, but on reflection I can safely say your friend really doesn't know anything about anorexia. Because if she did, she'd know that the LL programme doesn't even come close