Supplements for a 16-year-old dog

Sixteen years is a remarkable age for any dog — you've clearly done something right. The supplement market is enormous and mostly unnecessary: most healthy dogs on a complete diet don't need anything extra, and the ones that do usually need something targeted rather than a catch-all multivitamin. That said, a 16-year-old is genuinely a different case. Tell me a bit more — what breed mix is your dog, roughly how much do they weigh, and what's prompting the interest in digestive and immune support right now? Are you noticing anything specific, like looser stools, slower recovery from minor bugs, or just a general sense that you want to be proactive?

That picture makes a lot of sense — slightly softer stools and a slower immune response are both common in very old dogs. The gut microbiome shifts with age, and so does the efficiency of the immune system, which is actually closely tied to gut health. A broad multivitamin won't address either of those things meaningfully. What you want is something that targets the gut specifically, with a strain of probiotic that's actually been studied in dogs. Can I ask — is she on any medication or prescription food right now, even occasionally? And does she eat wet food, dry, or a mix?

Perfect — that makes things straightforward. My recommendation is YuDIGEST Plus by Lintbells. It's a probiotic and prebiotic supplement in a small daily paste that you can squeeze onto her food or give directly. It uses a well-researched bacterial strain called Enterococcus faecium, specifically selected for dogs, along with a prebiotic to feed it. The 'Plus' version includes a small amount of beta-glucan, which has decent evidence behind it for immune support in older animals. It's gentle, has no strong flavours that fussy old dogs tend to reject, and the dose for a 14kg dog is minimal — you're not throwing a lot of extra stuff at her system. It won't reverse ageing, but for what you've described — softer stools, slightly slower recovery, a desire to support without overdoing it — it's exactly the right fit. Give it four to six weeks and you should notice a change in stool consistency first, then over time a general resilience.

For a dog her age, daily and ongoing is the right approach. The benefit of a probiotic is maintenance — it helps keep the gut environment stable, which at 16 can shift quite quickly without support. You can take a short break if you want to reassess, but there's no reason to stop if she's tolerating it well and you're seeing benefit. Keep your vet in the loop as you go — not because there's any risk here, but because at 16 it's worth having everything logged. You're doing right by her.

Glad it landed well. YuDIGEST Plus is widely available on Amazon UK — search that exact name and you'll find it easily. The tubes are a reasonable size and last a while at her dose. I hope she keeps defying the calendar for as long as possible.