The makers of Evo recommend it for dogs that are fully grown or over 2 years old. My top pick is Acana. Acana is, to my knowledge, the only food that has no questionable ingredients. All the other top tier dry foods have at least a few questionable ingredients. For example, Evo has salt in it. And Wellness has tomato pomace, pea fiber (ocean formula), and fermentation product. One potential problem with Acana, however, is availability.
Chicken meal,
steamed oats, fresh free-run chicken,
peas,
brown rice, chicken fat
(preserved with mixed tocopherols and rosemary), fresh deboned salmon, chicken
liver, fresh whole eggs,
sun-cured alfalfa, salmon oil,
pumpkin, chicken cartilage
(natural source of glucosamine),
red delicious apples, carrots, turnip greens,
cranberries, Saskatoon berries, organic sea vegetables (kelp, bladderwrack, dulse),
burdock root, marshmallow root, juniper berries, fenugreek, sweet fennel, angelica
root, sea buckthorn, chicory root, stinging nettle, red raspberry leaf, milk thistle,
peppermint leaf, marigold flowers, chamomile flowers, lactobacillus acidophilus,
enterococcus faecium + vitamins and minerals.
I would question (Acana Adult) anything I highlighted in bold.
At least they tell us some numbers in regards to the protein. The protein core of this ration is 29%. Of that 29%, 55% is meat and fat based, 25% from fruit and vegetables, and 20% Oat and Brown Rice. Keep in mind the protein from Gluten sources has a biological value of zero for carnivore dog. IMO you roll the dice with these many of these kibbles, even with the posh and designer names.
That is why I will only feed ABADY products for my Field Setter. The protein core of my granular feed is 31%. 93% of that protein core is meat based protein (Basic Granular). Abady feeds are carnivore rations, while the industry will openly admit they are feeding omnivores, and the above ingredient profile reflects industry norm.