Hey Sue, I don't actually remember the whole diet Mum was on and she's not home for me to ask right now, but this recommendation looks very close to what she was doing. She was on it for 4-6 weeks.
The main difference Mum had from this article was that her naturopath told her that if she insisted on having butter, to whip it with olive oil. That way, she was still getting the butter flavour, but the goodness of olive oil. She was to stay away from margarine altogether.
Buzzle.com Article This article also looks good, but I disagree on the egg whites only issue. They have recently found that the HDL egg whites counteract the LDL egg yolks and so the whole egg, in moderation of course, is actually OK.
Target Woman.com Article Mum also takes psyllium husks, by the way.
Once her system was clear of all the crap, Mum's naturopath allowed her to start reintroducing some foods, but always mindful of the types of fat she was eating. It was really hard on her, as she started doubting all food at one point during the first month. I remember her phoning me in tears because she could barely make herself eat for fear of the fat contents and such. Thankfully, I had gone of wheat about 6 months before and cow dairy the year before, so I totally understood where she was coming from.
These diets are for cleansing purposes only, not to be espoused as a lifestyle, to my mind. 4-6 weeks should be all you do on this, then slowly reintroduce foods you've not been eating.
Good for you on the walking! One of the things we suggest at the Arthritis Society is to set a baseline fitness level. So, if you can walk a mile in 20 minutes now (which is not too shabby, by the way), a few weeks from now, see how far you can walk in 20 minutes ... theoretically, you should be able to go farther in 20 minutes than you can now.
Hugs,