Best food for 3-month Russian Blue kitten

Switching your kitten off a supermarket brand is a really positive move — especially at three months, when they're growing fast and every meal genuinely matters. Kittens need far more protein and calories than adult cats, plus specific nutrients like DHA for brain development, calcium for bone formation, and taurine for heart and eye health. This phase sets the foundation for everything that comes later. To point you in the right direction: how old is your kitten exactly, do you know the breed, and what are they eating at the moment?

Good news — you're making this switch at exactly the right time. Russian Blues are a lean, muscular breed and they tend to be quite sensitive to diet changes, so moving now while her digestive system is still developing and adaptable is ideal. Felix pouches aren't terrible in a pinch, but they're high in fillers and moisture with relatively low-quality protein sources. Before I recommend anything, a couple of quick questions: is she indoor only, and have you noticed any loose stools or digestive fussiness on the Felix?

It's common but not ideal — and it's often a sign that the food isn't agreeing with her digestive system. Loose stools in kittens frequently come down to low-quality protein, artificial additives, or too many cereals and fillers, all of which Felix contains. For a 3-month-old indoor Russian Blue with a sensitive stomach, I'd go with Royal Canin Kitten. It's specifically formulated for kittens up to 12 months, with highly digestible proteins, a tailored calorie level for indoor activity, and a prebiotic blend that directly supports gut health. Royal Canin's kitten formula has a strong track record for settling sensitive digestive systems, and the kibble size is designed for small kitten mouths. You can use it as a complete dry food or mix with their wet kitten range.

Transition slowly over 7 to 10 days. Start with about 25% Royal Canin mixed into 75% Felix for the first two or three days, then go 50/50 for another few days, then 75% Royal Canin, then full switch. If her stools firm up — which they usually do within a week of moving to Royal Canin — you'll know it's working. If you see any vomiting or real digestive upset, slow the transition down further. Keep fresh water available at all times too, especially if you're moving toward dry food as her main meal.

A combination is ideal if you can manage it. Dry food is great for dental health and convenience, but cats are naturally low-thirst animals and often don't drink enough water when on an all-dry diet — which can cause urinary issues down the line, especially in indoor cats. I'd suggest Royal Canin Kitten dry as her main food, and add one Royal Canin Kitten wet pouch per day alongside it. That gives her the hydration benefit, a bit of variety in texture, and still keeps the nutrition consistent since it's the same brand and formula range. At three months she'll be eating around three to four small meals a day, so split it across those.