Feeding once per day- the theory is that the gut does better when it has time to be empty between meals. Most predators do not eat regular meals. So by that logic, feeding even once a day is not entirely needed. I find though that my dogs (who did eat kibble much of their lives) do prefer their twice a day feedings. Meat takes time to process in the stomach- different than kibble- so your dog may be fine on once a day feedings.
I don't know what "EFA's" are (fatty acids?) and where you would get them. Vegetables- does the diet spell out which type? I do steam my veggies and grind them up with the meat- my dogs also do not knowingly eat veggies. Although my older dog is learning to enjoy them. When veggies are steamed, they are easy to hide in other things. I use about 5% to 10% organ meats with my muscle meats. I do weight things out instead of using cup measurements. 8 oz in a cup generally works and even weighing things out isn't the most accurate because everything has water in it. Yet, I'm one of those that "heaps" cups so it's easier for me to not over feed when I stick to a number.
No diet is 100% complete and balanced- not even kibble diets. Each of my dogs are a tiny bit different on what they need overall as well. So, start with what you have. Play around with the ratios if you need to. If you are worried, you can add some of the home made mixes to the diet (Soujourn Farm's Europa for example) as another suppliment to the diet or Nature's Variety raw meat patties. Don't get hung up on the day to day stuff.
Picky eaters- if your dog doesn't like the diet- give it a week and see if he warms to it. Don't do anything like add something better and more appealing to coax hin into eating it. If it doesn't work after a week of putting it in front of him and removing it after 15 minutes, then it won't work. Your dog may have some sensitivity to a food item or an upset stomach. Play around with the recipe at that point- use turkey instead of beef, or lamb, or pork, or if there are hunters in your area- venison.
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