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FREEZE-DRIED RAW FEEDING GUIDE

How to feed a Rat Terrier

The Rat Terrier is a small dog with a big-dog metabolism: athletic, tenacious, and constantly busy — yet quietly prone to obesity, sensitive skin, and joint trouble. That combination makes precise, high-quality feeding one of the most important things you can do for one.

Here is exactly how to feed a Rat Terrier on freeze-dried raw: measured by weight and life stage, with the lean fish-forward nutrition that protects their skin, joints, and waistline.

  • Adult weight10–25 lb
  • SizeSmall
  • EnergyHigh
  • Lifespan12–18 years
  • CoatShort, smooth & dense — mild year-round shedder
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A healthy Rat Terrier
iStock / Getty Images Plus via Getty Images

What a Rat Terrier's body needs

Every Rat Terrier trait comes back to one thing: how you feed them. Here's what matters most.

  • Small but prone to obesity

    Needs: Precise, measured portions

    Calorie-dense freeze-dried raw, fed by weight rather than by the begging, keeps a Rattie lean. Staying lean is the single biggest lever for protecting their joints and heart over a long 12–18 year life.

  • Sensitive, allergy-prone skin

    Needs: Fish-forward omega-3s, low filler

    Whole-food fish and animal fats feed the skin barrier from the inside, while a minimally processed diet skips the starchy fillers that can fuel the chronic itching and red bumps Rat Terriers are known for.

  • Joint watch-outs (patella, hips)

    Needs: Joint support + lean weight

    Real meat, organ and ground bone supply natural glucosamine and chondroitin, omega-3s calm joint inflammation, and keeping weight off a small frame takes direct load off knees and hips.

  • High drive, athletic build

    Needs: High-quality animal protein

    Real meat, organs and bone fuel lean muscle and the steady, all-day energy a working terrier needs — without the carb fillers that spike and crash a busy mind.

  • Good eater, food-motivated

    Needs: Honest, calorie-controlled meals

    Because Ratties rarely turn food down, measured single-protein raw makes portion control easy and keeps every calorie working for them instead of against their waistline.

How much to feed a Rat Terrier

Quick answer: a healthy adult Rat Terrier (10–25 lb) needs about 1.5–3.8 oz of freeze-dried raw per day, split across two meals. Freeze-dried is calorie-dense and measured dry — so it's much less by volume than kibble. Feed to a lean waistline and adjust every few weeks.

Ideal adult weightFreeze-dried per dayPer meal (×2)
10 lb 1.5 oz 0.8 oz
14 lb 2.1 oz 1.1 oz
18 lb typical Rat Terrier 2.7 oz 1.4 oz
22 lb 3.3 oz 1.7 oz
25 lb 3.8 oz 1.9 oz

Starting points for a moderately active adult (~0.15 oz of freeze-dried per lb of ideal weight). Active dogs need a little more, couch companions a little less — always adjust to body condition, not the bag.

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What to feed a Rat Terrier

For a Rat Terrier we recommend complete freeze-dried raw as the daily base — real meat, organs and ground bone with no heat-processed filler — or as a topper while you transition. The small, dense morsels suit a little mouth and a busy metabolism.

Because Ratties are prone to skin allergies, fish-forward recipes like Wild-Caught Cod and Salmon are a smart default, with lean Chicken for variety. Just add water and serve.

Recipes for Rat Terriers

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Daily support for Rat Terriers

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Treats Rat Terriers love

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Feeding a Rat Terrier by life stage

  • Puppy: Rat Terrier puppies are tiny and high-energy. Feed roughly 5–8% of current body weight split across 3–4 small meals a day to keep blood sugar steady, and adjust frequently as they grow.
  • Adult: Feed to a lean, visible waist, split across two meals. Use the chart below as a starting point and adjust to body condition rather than the bag — this is a breed that gains weight quietly.
  • Senior: Activity slows but appetite rarely does, and heart and joint issues become more likely with age. Trim portions to hold a lean weight, keep protein high to preserve muscle, and lean into joint- and skin-supporting nutrition.

Common Rat Terrier concerns — and the diet connection

  • ObesityThe most preventable risk for the breed and the one that worsens nearly every other issue here — measured raw feeding and a consistently lean body condition are the foundation of a Rattie's long-term health.
  • Patellar luxation & hip dysplasiaLargely structural, but lean weight plus joint nutrients (natural glucosamine from bone and cartilage, plus omega-3) help support comfortable, easy movement on a small frame.
  • Skin allergies & itchingRat Terriers have notably sensitive skin; a whole-food, omega-rich, low-filler diet supports the skin barrier and helps dial down the inflammation behind chronic scratching.
  • Cardiac healthHeart issues can appear with age, and keeping a lean body condition through measured feeding eases the workload on the heart while clean animal protein and fat support overall condition.

Diet supports health but doesn't replace veterinary care — ask your vet about any specific condition.

Feeding a Rat Terrier: what to know

Rat Terriers are good eaters, and on a small frame the calories add up fast. Feed measured meals twice a day rather than free-feeding, and weigh portions instead of eyeballing them — even a few extra ounces a day shows up quickly on a 10–25 lb dog.

Feed to body condition, not to the begging: you should feel the ribs easily and see a waist from above. Re-check the amount every few weeks, especially after any drop in activity, since obesity is a real risk for this otherwise hardy breed.

Rat Terrier feeding questions

How much should I feed my Rat Terrier?
A healthy adult Rat Terrier (10–25 lb) needs roughly 1.5–4 oz of freeze-dried raw per day, split between two meals. Freeze-dried is calorie-dense and measured dry, so it is far less by volume than kibble — weigh each meal and feed to a lean waistline, adjusting every few weeks.
What is the best food for a Rat Terrier with sensitive skin?
Fish-forward recipes are a smart starting point. A complete freeze-dried raw diet built on Wild-Caught Cod or Salmon delivers skin-supporting omega-3s with minimal filler, which helps soothe the chronic itching and red bumps Ratties are prone to.
How do I keep my Rat Terrier from gaining weight?
Skip free-feeding, weigh every meal, and feed to body condition rather than appetite. Measured single-protein freeze-dried raw makes calorie control easy, and you should always be able to feel the ribs and see a waist from above.
How do I switch my Rat Terrier to raw?
Transition over 7–10 days, mixing a little more Land Animal into the old food each day. Ratties are usually enthusiastic eaters, so start at the lower end of the range and watch the waistline as you go.
Does a Rat Terrier need joint support?
Many benefit from it, given the breed's risk of patellar luxation and hip issues. Freeze-dried raw with real bone and organ provides natural glucosamine and omega-3, and keeping your Rattie lean is the most effective joint protection there is.

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  • Vet-formulated
  • AAFCO complete & balanced
  • Pathogen-tested every batch

  • "Knowing exactly how much to feed took all the guesswork out. He's leaner, with more energy on our walks."

    — Jenna & Cooper

  • "My picky rescue finally runs to the bowl — and cleanup in the yard is a fraction of what it was."

    — Priya & Luna
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Portions are starting points for freeze-dried raw and AAFCO complete-and-balanced recipes. Always feed to your individual dog's body condition and ask your vet about specific health needs.