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Greyhound Feeding & Digestion in Calgary

Stress colitis in the first 48 hours, sensitive-stomach kibble that actually works, bloat prevention, why raw is wrong for new retirees

9 min read · Updated May 17, 2026
Author: LocalPetFinder Team
Calgary Greyhound eating measured kibble from a slow-feeder bowl on the kitchen floor

The short answer

Greyhounds have sensitive stomachs. Roughly 30 to 50% of newly adopted retired racers get loose stool or full diarrhea in the first 24 to 72 hours. This is stress colitis. Stick with the rescue's kibble for the first 1 to 2 weeks, then switch slowly. Best Greyhound-friendly brands: Purina Pro Plan Sensitive Skin & Stomach, Royal Canin Gastrointestinal, Hill's Science Diet Sensitive Stomach, Acana Singles. All sold at Pet Planet and Tail Blazers across Calgary. Skip grain-free (FDA-investigated DCM link). Skip raw for the first 6 months (too big a GI change for a stressed new dog). Feed 2 to 3 smaller meals daily. Avoid exercise around meal times to lower bloat risk.

My new Greyhound has diarrhea. What is stress colitis?

Stress colitis is large-intestine inflammation triggered by sudden change. Adoption transport, a new home, new food, and first-time alone time stack up fast.

Roughly 30 to 50% of newly adopted retired racers develop loose stool or full diarrhea in the first 24 to 72 hours. Symptoms include soft to liquid stool, sometimes with mucus or streaks of blood. Energy and appetite usually stay normal.

Treatment: bland diet of boiled chicken and white rice at a 1:2 ratio for 3 to 5 days. Then transition slowly back to regular food. A probiotic helps. FortiFlora is the most widely recommended brand. Keep stress low.

See a vet if: diarrhea lasts more than 5 days, has significant blood, or comes with vomiting or lethargy. The cause could be parasites, infection, or something more serious.

What is the best food for a Greyhound with a sensitive stomach?

Greyhounds, especially retired racers coming off track diets, often need a gentle formula. Most-recommended kibbles in the Greyhound community:

  • Purina Pro Plan Sensitive Skin & Stomach (lamb + oatmeal or salmon + rice)
  • Royal Canin Gastrointestinal (vet prescription, used for active flares)
  • Hill's Science Diet Sensitive Stomach
  • Acana Singles (limited-ingredient)

All four are sold across Calgary at Pet Planet, Tail Blazers, Tisol, and major pet retailers.

Start with whatever the rescue was feeding for the first 1 to 2 weeks. Then switch slowly, adding 10% new food per day over 7 to 10 days. Sudden food changes are the #1 cause of new-home GI flares.

Should I feed my Greyhound grain-free food?

No, based on current evidence.

The FDA opened an investigation in 2018. Grain-free diets, especially those built on peas, lentils, and potatoes, were linked to dilated cardiomyopathy (DCM). DCM is a serious heart condition.

Research is still ongoing. Not every grain-free brand is implicated. But most veterinary cardiologists now take a conservative line: avoid grain-free in breeds without a confirmed grain allergy. Greyhounds are not a wheat-allergic breed by default.

Choose a kibble with whole grains like rice, oats, or barley. Pick a brand with a veterinary nutritionist on staff (Purina, Royal Canin, Hill's, Eukanuba).

If your dog has a confirmed grain allergy diagnosed by elimination diet, work with your vet on a grain-free option. Don't guess.

Greyhound eating slowly from a ground-level slow-feeder bowl in a Calgary home kitchen

How do I prevent bloat (GDV) in my Greyhound through feeding?

Greyhounds are deep-chested and high-bloat-risk. Feeding choices matter.

Feeding-side prevention:

  1. Feed 2 to 3 smaller meals daily, not one large meal
  2. No exercise 1 to 2 hours before or after meals
  3. Use a slow-feeder bowl if your Greyhound gulps food
  4. Keep water available but not gulped after exercise
  5. Use a ground-level bowl. Newer research walks back the old “elevated bowl” advice. Elevated may actually increase bloat risk.

Active bloat is a true emergency. Signs: distended abdomen, retching without producing vomit, drooling, restlessness, pale gums, collapse.

Drive to a Calgary 24-hour emergency vet right away. Bloat is fatal in 1 to 2 hours if untreated.

Should I feed my Greyhound a raw diet?

Not in the first 6 months, and probably not at all for a new retired racer without a vet-supervised plan.

Why hold off:

  1. Retired racers come off bagged track diets. Switching straight to raw is a huge GI change. It often triggers stress colitis.
  2. Raw food carries pathogen risk (salmonella, E. coli, listeria). Healthy adult Greyhounds usually handle this. A stressed new adoptee may not.
  3. Commercial raw is pricey at $150 to $300 a month for a 70 lb Greyhound in Calgary.
  4. Homemade raw without a vet nutritionist often produces calcium and phosphorus imbalances.

If you still want to switch, wait until 6 months post-adoption. Then transition over weeks under vet guidance.

For most Greyhounds, a high-quality kibble matches or beats raw on outcome metrics.

Where can I buy Greyhound-friendly food in Calgary?

Most recommended Greyhound kibbles are sold at Calgary pet specialty stores.

  • Pet Planet (Marda Loop, Country Hills, McKenzie Towne, others). Carries Pro Plan, Royal Canin, Acana, and most premium brands.
  • Tail Blazers (multiple Calgary locations). Premium and limited-ingredient focus.
  • Tisol, Bosley's, Pet Valu. Stock the major sensitive-stomach lines.
  • Royal Canin GI prescription. Buy through your regular vet clinic. Most stock the standard prescription brands.
  • Costco. Kirkland Signature kibble is a decent budget option but lacks the breed-specific sensitive formulas Greyhounds often need.

Why is my Greyhound counter-surfing and how do I stop it?

Greyhounds can reach the back of any standard kitchen counter without effort. Their nose-to-paw height is roughly 36 to 40 inches at full stretch.

Counter-surfing is opportunistic, not malicious. If there's food on the counter, it's within reach.

Prevention is environmental. Never leave food on counters when unsupervised. Push everything to the back wall. Install baby gates if needed. Supervise during cooking.

Don't bother trying to “train out” counter-surfing. Punishment doesn't work because the food reward (the steak you left out) is too valuable.

Manage the environment. Accept that an unattended Greyhound plus an unattended sandwich equals no sandwich.

How much food should I feed my adult Greyhound?

A 60 to 90 lb adult Greyhound at maintenance weight eats 3 to 5 cups of quality kibble daily, split into 2 to 3 meals.

The exact amount depends on activity level, age, metabolism, and the calorie density of your food.

Greyhounds are athletic builds and should look lean. You can see the last 1 to 2 ribs. A clear waist shows when you look from above.

Many new adopters under-feed because they think the dog “looks too thin.” Greyhounds are supposed to look thinner than other breeds. If you can see the spine clearly or the hip bones are sharp, feed more. If you can't see ribs at all, feed less.

Calgary winters can raise calorie needs by 10 to 20% for outdoor-active dogs.

How to transition food without triggering colitis

The 7 to 10 day gradual transition is essential for Greyhounds.

DaysOld foodNew food
Days 1–275%25%
Days 3–450%50%
Days 5–625%75%
Day 7+0%100%

If diarrhea or vomiting starts at any stage, drop back to the previous ratio for 3 to 5 days before moving on. Sensitive Greyhounds may need a 14-day transition instead of 7.

Frequently Asked Questions

My new Greyhound has diarrhea. Stress colitis?

Around 30 to 50% of new retired racers get loose stool in 24 to 72 hours. Bland diet (chicken and rice 1:2) for 3 to 5 days, slow transition back, FortiFlora probiotic. Vet if past 5 days or with vomiting or lethargy.

Best food for a Greyhound with a sensitive stomach?

Pro Plan SSS, Royal Canin GI (vet prescription), Hill's Sensitive, Acana Singles. Calgary stockists: Pet Planet, Tail Blazers, Tisol. Start with the rescue's food and transition slowly.

Grain-free food for Greyhounds?

No. FDA DCM investigation. Choose kibble with whole grains from brands with vet nutritionists (Purina, Royal Canin, Hill's, Eukanuba). Only go grain-free with a confirmed allergy and a vet plan.

Bloat (GDV) prevention through feeding?

2 to 3 small meals daily. No exercise 1 to 2 hours around meals. Slow-feeder if your dog gulps. Ground-level bowl. Distended abdomen plus retching with no vomit equals ER now.

Raw diet for Greyhounds?

Not in the first 6 months. Massive GI change for a stressed new dog. Pathogen risk. Expensive ($150 to $300 a month in Calgary). Homemade raw needs vet nutritionist supervision.

Where to buy in Calgary?

Pet Planet, Tail Blazers, Tisol, Bosley's, Pet Valu for premium brands. Royal Canin GI through your vet clinic. Costco Kirkland is budget-OK but lacks sensitive formulas.

How do I stop counter surfing?

Environmental management only. Greyhounds reach 36 to 40 inches at full stretch. The whole counter is in range. Push food back, supervise, use baby gates. Punishment fails because the food reward is too valuable.

How much should I feed my adult Greyhound?

3 to 5 cups a day split into 2 to 3 meals. Athletic build. Greyhounds are SUPPOSED to look thin. Last 1 to 2 ribs visible plus a clear waist equals healthy. Calgary winter adds 10 to 20% calories for outdoor-active dogs.

How much is food per month for a Greyhound in Calgary?

Plan for $80 to $130 a month on premium large-breed kibble (3 to 4 cups per day for a 60 to 70 lb adult). Less than most owners expect for a tall sighthound. Greyhounds have efficient metabolism and lower calorie needs than working breeds of similar size. Premium kibble matters more than quantity. Calgary stores: PetSmart, Pet Valu, Tail Blazers, Petland. Bulk buying at Costco saves 15 to 20% on Kirkland Signature large-breed. Add joint supplements ($20 to $40 a month) and dental chews if you skip routine professional cleanings.

Are Greyhounds more expensive to feed than other large breeds?

No. Surprisingly less expensive despite their size. Compared to Labradors (90 to 100 lbs), Bernese Mountain Dogs (90+ lbs), and other working breeds of similar size, Greyhounds eat 25 to 40% less daily. Their racing-selected genetics produced efficient metabolism. A 70 lb Greyhound costs less to feed than a 70 lb Labrador. Total annual food spend: $1,000 to $1,500 (vs $1,500 to $2,500 for active working large breeds).

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