Be this an old thread or not, I did the Cousins diet for 4 weeks upon my diagnosis purely because my GP clearly didn;t have a clue how to deal with quick onset type 1, except by saying keep my diet the same even tho he didn't know my current diet, and take these, they'll work in a few weeks but give you bad guts.
What good was that to me, my bg was over 33, ketones off the scale and hba1c 122, I was losing my sight and stumbling about, I had to do something and food was the only way I could try.
The Cousins diet is more radical than just raw vegan, raw vegan has variety in it.
Saying that tho it brought my levels down to manageable safer numbers in a matter of a few days, but for longer term solutions I'm not so sure how you would manage your life, other than be in the kitchen preparing food all day and running out of energy quickly as no background insulin and very very low carb. It is not really designed for type 1.
I would not put a child on this regime, I did it as a consenting adult with only myself to blame, but in the short term it did what I hoped and am glad of the experience.
The title of his book. 'There is a cure for diabetes' is irresponsible, but if you are on a specific diet to control bg and are doing without meds, you're not showing signs of diabetes. This isn't a cure, but it is control without meds if you can keep it up.
I couldn't, and am on Novomix 30 x2 a day, but do eat salad every lunchtime now, which I am thankful for.
I've also seen Boutenko and family, they say live on green smoothies and pay us for recipes, I am more suspicious of their formula and would not try that. Again neither of these formulas work for type 1 I feel as no insulin.
I told my DSN of this diet, she called it starvation, I'm now eating high carb, high fat high protein diet and am still hungry all the time.