Best food for senior Flat-Coated Retriever mix

Switching away from a generic senior food is actually a really sensible move for a Flat-Coated Retriever mix at eight — these dogs have some specific needs that one-size-fits-all senior kibble often misses, particularly around joint support and maintaining lean muscle as they slow down. Senior dogs generally need adjustments in nutrition, joint care, dental health, and sometimes sleep comfort, but how much depends a lot on the individual dog and their mix. To point you toward the right food, it'd help to know: is your dog a larger or more medium-sized build from the mix, are there any existing health concerns like stiffness, weight changes, or digestive sensitivity, and what's prompting the switch right now — a vet suggestion, or something you've noticed yourself?

That morning stiffness at eight is very typical for a dog her size and build — it's not a crisis, but it's a clear signal that her food should be doing more work for her joints than a generic senior blend usually does. The other thing worth knowing about Flat-Coated Retrievers specifically is that they're prone to weight gain as they become less active, and excess weight accelerates joint deterioration faster than almost anything else. So you want a food that's genuinely calibrated for her size, supports joints actively, and manages calorie density carefully. Can I ask what brand she's on now, and does she tend to eat enthusiastically or is she a bit fussy?

Wainwright's Senior isn't a bad food, but you're right that it's quite broad — it's not doing anything targeted for her joint needs or her specific size category. Given she's 28kg, eats well, has early joint stiffness, and needs weight kept in check, I'd move her onto Royal Canin Medium Ageing 10+. I know it says 10+ on the tin, but at eight with the stiffness she's showing, starting it now rather than waiting is the right call — the joint support ingredients, particularly the EPA and DHA fatty acids and glucosamine levels, are exactly what she needs at this stage. It's also precisely calibrated for medium-breed metabolism, so it helps maintain muscle without adding fat. The kibble size suits enthusiastic eaters too — it encourages proper chewing rather than gulping. Transition over about ten days mixing increasing amounts of the new food in, and you should notice the morning stiffness improving within six to eight weeks.

The Royal Canin Medium Ageing 10+ has decent joint support built in, and for a dog at early-stage stiffness with no diagnosed condition, that's often sufficient. My honest suggestion would be to switch the food first and give it eight weeks before adding anything — you might find the stiffness resolves well on its own as the fatty acids and glucosamine build up in her system. If after that she's still struggling to get up smoothly, then adding a separate omega-3 supplement like YuMove Joint Care for Dogs would be a worthwhile next step. But don't layer everything at once — it makes it impossible to know what's actually working.

Great plan. Ten-day transition, watch her weight over the first couple of months since her metabolism will be adjusting, and keep an eye on that morning stiffness as your benchmark. If she's doing well at her next vet check, that's a good moment to reassess whether she needs anything extra. She's lucky to have someone paying this much attention at eight — catching these things early makes a real difference.