This is a specific conversation about Senior dog food — what changes as they age — ask about yours and get one honest answer for your exact situation.
inparticular.ai
Senior dogs have genuinely different nutritional needs — typically lower calories to protect their joints and weight, better digestibility as their gut becomes less efficient, and more targeted joint support, especially in large breeds. But when and how you make that switch depends a lot on the dog's breed, size, and current health. Rottweilers are a good example: they're a large, heavy-framed breed prone to joint issues, and at eight they're solidly in senior territory. What's your dog's name, any health conditions I should know about, and what are they eating right now?
His name's Bruno. He's 8, about 45kg, no diagnosed conditions but he's been a bit stiff getting up in the mornings lately. He's been on a generic supermarket adult kibble for years — I just grabbed whatever was on offer. I think it's time to do better by him.
inparticular.ai
That morning stiffness is really common in large breed seniors and is often the first sign that joints are starting to feel the miles. At 45kg on a generic adult formula, Bruno is almost certainly getting too many calories, too little joint support, and probably not enough easily digestible protein. Those three things together can accelerate exactly what you're seeing. Before I suggest anything — is he a healthy weight visually? Can you feel his ribs fairly easily, or is there a noticeable layer over them?
Honestly he's probably a kilo or two heavier than ideal. I can feel his ribs but there's definitely some padding. Not obese but not lean either.
inparticular.ai
That's really helpful — and actually pretty typical for a large breed dog on a generic adult food at this age. The calorie density tends to be higher than senior dogs need, and it creeps up over time. Given Bruno's age, his size, the early joint stiffness, and the fact that he's slightly over his ideal weight, I'd go with Hill's Science Plan Large Breed Senior with Chicken. It's formulated specifically for large breed seniors — lower calorie density than adult food, clinically tested levels of glucosamine and chondroitin for joint support, and high-quality chicken protein that's easy to digest. It's not a prescription diet, so you don't need a vet referral, but it's a proper therapeutic-grade kibble rather than a marketing label. It's widely available on Amazon UK and you can get a 14kg bag that'll last a good while. One thing: transition him over about 10 days — mix it in gradually with the old food so his gut adjusts. Any allergies or intolerances I should factor in?
No allergies that I know of. He's always eaten everything without issue. How much should I be feeding him if I'm trying to get him back to a better weight?
inparticular.ai
The feeding guide on the Hill's bag gives a starting point, but for a slightly overweight 45kg senior I'd suggest starting at the amount listed for a 40kg dog rather than 45kg — that mild calorie deficit, combined with the lower-density formula, will help Bruno lose that extra kilo or two gradually without leaving him hungry. Weigh the portions rather than using a cup if you can; it makes a real difference. Check his waist and rib cover every couple of weeks and adjust from there. If after a month he's not shifting any weight, you can trim another 5–10% off the daily amount. And if that morning stiffness doesn't improve within 6–8 weeks on the new food, it's worth a vet check — joint supplements or a prescription mobility diet might be the next step.
That's really clear, thank you. I'll order the Hill's Large Breed Senior today.
inparticular.ai
Good move — Bruno's at an age where the right food really does make a visible difference. You should start to notice better energy and hopefully less stiffness within a few weeks once the joint nutrients are building up in his system. The 14kg bag on Amazon UK is the best value format. Good luck with him.
