The diet is just not about fat. you also have to stop eating acidic foods.
Its probably best if you get her book dropping acid. It explains the whole diet theory in detail.
It also explains why u should be avoiding M&M and ginger ale. I suggest you stop all problem foods, otherwise you can have LPR for years.
LPR is already pretty difficult to resolve. I have only read 3 people on this forum actually cure themselves.
if you do the diet correclty you will see improvement in 2 weeks to a month.