Raw feeding a Boxer puppy safely

A four-month-old Boxer on raw — that's a great ambition, but Boxers are one of the breeds where I'd want to get the details right from day one. They're deep-chested, brachycephalic, and prone to bloat (GDV), so the raw plan itself needs to account for that: no fermented or gas-producing ingredients, controlled portion sizes, no feeding immediately before or after exercise, and ideally a complete ready-made product rather than DIY at this stage, so you're not inadvertently creating calcium-to-phosphorus imbalances in a fast-growing pup. Raw feeding done well genuinely is excellent — but done badly it creates nutritional gaps that cause real harm over time, and the difference is balance and sourcing. To point you in the right direction: how much does your puppy weigh right now, and are you set on preparing meals yourself or open to a complete minced raw product?

You're right to be cautious — puppy DIY raw errors show up in bone development and can be irreversible by the time you notice them. At 8kg and four months, a Boxer is going to roughly double in size, so you need something formulated specifically for puppies with the right calcium-phosphorus ratio baked in. Before I give you my recommendation: is he eating one or two meals a day currently, and does he tend to bolt his food or eat calmly? That affects how I'd advise you to serve it.

Fast eating in a deep-chested breed is a real bloat risk factor, so that's important. Two meals is exactly right — don't consolidate to one. For the food itself, my clear recommendation is Nutriment Complete Puppy Formula. It's a fully balanced raw mince — meets FEDIAF nutritional guidelines for puppy growth — and it comes in 500g tubs which make portion control straightforward. For an 8kg Boxer puppy growing fast, you'd typically feed around 6–8% of body weight daily split across those two meals, so roughly 240–320g per day total right now, adjusting upward as he grows. Critically, it doesn't contain fermentable fillers or legumes that create gas, which keeps bloat risk lower than cheaper complete raws. Serve it slightly below room temperature (not straight from the fridge, not warmed), and use a slow-feeder bowl or scatter the portion on a lick mat to slow him down. That combination — right food, right portions, slowed eating — gives you a genuinely solid raw foundation for a breed that needs it done carefully.

The Nutriment mince contains finely ground bone, so his calcium and phosphorus needs are met without you needing to add anything. Raw meaty bones are a separate topic — and for a brachycephalic puppy, I'd hold off entirely until he's older and you've had a vet assess his palate and airway. Boxers can struggle to chew and breathe simultaneously, and a four-month-old with enthusiastic eating habits and a flat face is not the right candidate for recreational bones yet. If you want dental benefit in the meantime, a textured rubber chew or a frozen raw carrot is safer. Get him settled on the mince, let him grow a bit, and revisit the bone question with your vet around six to eight months.

Good plan — that pairing will make a real difference. One last thing worth knowing: when you transition him onto raw, do it over five to seven days rather than switching overnight. Start with 25% raw mixed into whatever he's on now, and build gradually. Boxer puppies can have sensitive digestion during transitions, and a slow switch avoids loose stools that might put you off raw altogether. After a couple of weeks you should see firmer, smaller stools and a noticeably glossier coat — those are the signs the diet's working. You're setting him up well.