Feeding an Underweight Rescue Lurcher Puppy

A rescue lurcher puppy with no known history and underweight on arrival — that's actually one of the more nuanced feeding situations you can find yourself in, and getting it right really matters. Puppy nutrition is one of the most important investments you'll make: the right food in the first year sets the foundation for long-term health, and the differences between puppy foods are far more significant than most people realise. To point you in the right direction — what breed mix do you think they might be, how old are they now, and what are they currently eating since coming home?

Got it — and a greyhound-whippet cross is a great start in terms of knowing what you're working with. Sighthounds as a type tend to be naturally lean, but at 4 months with visible ribs that's genuinely underweight rather than just breed typical. The other thing worth knowing is that sighthounds have a slightly unusual physiology — lower body fat, different muscle composition — which means they can be more sensitive to poor-quality protein than other breeds. Before I make a recommendation, one quick question: has she been seen by a vet since you got her, and do you know if she's been wormed recently? Underweight rescues often have a worm burden that affects how well they absorb nutrition, and that changes the urgency slightly.

Perfect — that's exactly the right approach, and it sounds like you have a good vet. Slow, steady weight gain on a high-quality food is exactly what she needs. Now, the budget supermarket kibble really does need to go. Those foods typically use low-grade protein sources and high cereal fillers, which means a lot of what she eats passes straight through rather than building muscle and condition. For a sighthound puppy recovering from being underweight, you want a food with named, high-quality animal protein as the first ingredient, good fat content to support healthy weight gain, and no wheat or maize — sighthounds can be prone to gut sensitivity and you don't want to add that complication right now. My clear recommendation is Canagan Free-Run Chicken for Puppies. It's 70% chicken, grain-free, and genuinely nutrient-dense — meaning she gets more from smaller amounts. That density is important: you're not trying to stuff her, you're trying to make every mouthful count. Feed to the lower end of the weight guidelines initially and increase gradually over 3–4 weeks as her condition improves. You'll see the difference in coat quality and energy within a fortnight.

Honestly, if you switch to Canagan you shouldn't need to add much — it's a complete food and well-balanced. The one thing I would consider, given her unknown history and the stress of rehoming, is a good probiotic for the first few weeks. Stress and a change in diet both disrupt gut flora, and a settled gut means better nutrient absorption, which directly supports weight gain. Protexin Pro-Kolin is widely used and vet-recommended — a small squeeze on her food for two to three weeks during the transition will help her digestive system settle alongside the new food. Beyond that, resist the temptation to add extra scraps or top-ups — consistency is your friend right now. Let the food do the work, weigh her weekly so you can track progress, and report back to your vet at the six-week mark. She's in good hands.

You're going to see a real transformation over the next couple of months — lurchers are wonderful when they're thriving and she's lucky to have someone paying this much attention to getting it right. Transition the food gradually over about a week if you still have some of the old kibble left, mixing increasing amounts of Canagan in. And enjoy the puppy phase — even the chaotic bits!