Feeding a 3-month Tonkinese with older kittens

A three-month-old Tonkinese sharing a feeder with two seven-month-olds — that's a real feeding puzzle, because your youngest is at a stage where getting enough of the right nutrition is genuinely critical, and the older two will almost certainly eat faster and take the lion's share. Kittens have very different needs from adult cats — higher protein, more calories, plus specific nutrients like DHA, calcium and taurine for brain, bone and muscle development — and this window really does set up long-term health. Before I suggest anything, can you tell me: is the shared feeder a standard bowl, a microchip feeder, or something else? And is your Tonkinese currently eating anything specific, or just whatever the household has?

It does matter, yes — adult Royal Canin is formulated for maintenance, not growth. The protein and calorie density are lower, and it's missing the elevated levels of DHA and calcium a three-month-old needs. The good news is the fix is straightforward. But I want to flag the bigger issue first: with one open bowl and a size mismatch, your smallest kitten is almost certainly getting outcompeted. Even with perfect food, she may not be eating enough. Are you home during feeding times, or does the bowl just stay accessible all day?

That's useful to know. Here's what I'd suggest as a two-part approach. First, the food itself: Royal Canin Kitten (the standard kitten version, not breed-specific) is the right choice for all three of them right now. At seven months, the older two still have a few months of kitten-stage growth left, so kitten food is exactly right for them too. It's a genuinely good formulation — high digestibility, correct calcium-to-phosphorus ratio, and the DHA your Tonkinese needs. The fact you're already in the Royal Canin ecosystem makes this an easy switch. Second — and this is the part that actually protects your youngest — I'd strongly recommend adding a second feeding station in a separate spot. It doesn't need to be fancy, just a second bowl in a different room or at a different height. That one change alone will make a bigger difference to your Tonkinese's intake than anything else. Does that feel manageable?

For your setup, I'd go with Royal Canin Kitten dry food as the main feed — it's practical for an all-day bowl, the kibble size is appropriate for kittens from two months up, and it handles well in a shared feeding situation. The specific product to look for is Royal Canin Kitten Complete Dry Cat Food, which comes in 400g, 2kg and 4kg bags on Amazon UK. The 2kg is a good starting point. If you want to add wet food alongside — which I'd recommend, especially for your Tonkinese to keep her hydrated — Royal Canin Kitten Wet pouches pair well with it and can be offered separately at that counter station so she gets first access. But the dry food is the foundation; get that switched first.

For the Tonkinese and most domestic cats, twelve months is the standard transition point. Tonkinese are a moderate-sized breed with no unusual growth quirks, so twelve months works well. The seven-month-olds are on the same timeline — transition them all together around the one-year mark. When you do switch, do it gradually over about ten days, mixing increasing amounts of adult food in with the kitten food. Sudden switches can upset digestion, especially in younger cats. You're in a good position now — same food, same brand, just two feeding points. That's a much better setup for your smallest one.