From what I have read and talked to other people about a diet high in protein and fat and low to no carbs is what you want. Cancer feeds on Carbs and Sugars.
First of all there are several pre-made diets you can feed;
Science Diet - Hill's Prescription n/d. This food is high in protein and fat but also contains some carbs [one of the top 3 ingredients being Rice.]
Innova EVO - Very high protein and fat content. No grains.
Canidae All Life Stages Grain Free - High Protein and fat content. No grains.
Taste of the Wild - They apparently have a diet with no grains, not sure which one?
Wellness - I believe they have a no grain mix as well.
Out of all of these I would personally go with InnovaEVO or Canidae with No grains. I think n/d could be alright if it didn't have Rice in it and wasn't so over priced and hard to obtain. Afterall, it is proven in clinical studies to work
I am still in the research stage but here is what I have for my dog Sofie.
She gets 1 cup of this homemade diet per day. You want to feed 2%-3% of the dog's body weight.
I bought a pack of chicken leg quarters and baked them in the oven at 375 for about an hour. After the meat cooled I put it in the food processor and chopped it up quite a bit, it reminded me of tuna when you make it into a sand-which, also poor in the remaining fat in the pan. To this I added Broccoli, Spinach, and Green Beans[all processed]. I also added some Raw Chicken Hearts[processed as well], I just couldn't bring myself to cook them. I'll be using Liver the next go round. I mixed all of this together and took 1/2 cup scoops and put them on a cookie sheet to freeze. 5 leg quarters, a bag of broccoli/green beans/spinach made enough for Sofie to eat for about 2 weeks. I thaw 1/2 cup in the fridge, mix in 2tbsp of plain yogurt, she gets 1 fish oil cap am/pm, 1 flaxseed cap am/pm added to the mix.
I'm going to play around with using celery, sprouts, maybe some cabbage. Broccoli is really good for an anti-cancer diet, Spinach too. I also am giving her a raw egg twice a week - good protein, fat, and it has biotin in it.
I talked to Angie [Vinny's mom] about this so I got my recipe from her. I've done a lot of google searching but am still looking for potential extra supplements/herbs to go in the food as well as learning what vegetables are good in a cancer scenario.
Also for those worried about the diet being complete you can buy a supplement that will complete your meal at www.balanceit.com
As I find good websites with info I'll post them here, there just aren't any good websites that just say 'This is how you do it' it's really frustrating.