Food & Treats

12 Best Puppy Food for Border Collies 2026: Gentle on Stomachs

Updated June 13, 2026

Find the best puppy food for border collies that supports growth and energy while avoiding the digestive issues common with high-protein grain-free formulas.

Border collie puppies are energetic and need quality nutrition, but many owners find that heavily marketed high-protein, grain-free formulas trigger loose stools and digestive upset. The challenge is finding a food that fuels growth without upsetting their stomach.

The key is not always more protein. Traditional grain-inclusive recipes with moderate protein levels (28-32%) often provide the balanced energy border collies need while being gentler on developing digestive systems. This guide focuses on foods that match that profile – proven to support healthy growth without the high risk of diarrhea.

You will face a trade-off between breed-specific formulas and superior digestive tolerance. The best choice depends on whether your puppy thrives on tailored kibble shape or needs extra help maintaining firm stools.

1

Fromm Puppy Gold

Top Pick
Fromm Puppy Gold

Sensitive stomachs

Our Score 9.4/10
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Worth Noting

  • High cost per pound
  • Occasional loose stools reported in some cases, though less common than with other brands
DHA
—
Kibble Size
Small
First Ingredient
Chicken, duck, lamb
Digestive Support
Probiotics
Read the full review

Fromm Puppy Gold delivers the lowest rate of digestive upset among premium puppy foods, thanks to its chicken, duck, and lamb protein blend with whole grains. The small kibble size is easy for medium breed puppies to chew and swallow, and diarrhea reports are minimal — even for sensitive breeds like border collies.

This 5 lb bag costs more per pound than larger bags of similar quality, so budget-conscious owners will find it expensive. It suits owners prioritizing digestive health over cost per pound, especially for border collie puppies with sensitive stomachs. The small bag means more frequent purchases for a growing puppy.

The small bag size means you will need to reorder more often for a growing puppy; consider a subscription to avoid gaps.

Bottom line: If digestive peace of mind matters more than cost per pound, Fromm Puppy Gold is the clear choice — top pick for sensitive stomachs.

2

Royal Canin Medium Puppy

Royal Canin Medium Puppy

Medium breed nutrition

Our Score 9.4/10
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Worth Noting

  • Premium-priced for the 4 lb bag, cost per pound is high.
  • Some puppies may experience diarrhea or vomiting when transitioning.
DHA
DHA
Kibble Size
Medium
First Ingredient
—
Digestive Support
Prebiotics
Read the full review

Royal Canin Medium Puppy delivers kibble shape and nutrient levels matched to the jaw size and growth needs of breeds like border collies. This targeted formulation supports healthy development and maintains steady energy levels. However, some puppies experience digestive upset, making this a better fit for owners whose pups have already adjusted to chicken-based recipes and who prioritize breed-specific nutrition over digestive gentleness.

Transition gradually over 7 days to reduce the chance of digestive upset.

Bottom line: A good option for owners who want breed-specific nutrition and can accept occasional digestive issues; for maximum digestive gentleness, the top pick from Fromm is preferable.

3

Pro Plan Lamb & Rice Puppy

Pro Plan Lamb & Rice Puppy

Lamb alternative

Our Score 9.4/10
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Worth Noting

  • Labeled 'Lamb and Rice' but includes chicken by-product
  • Some puppies may refuse the food or experience loose stools
DHA
DHA
Kibble Size
—
First Ingredient
Lamb (chicken by-product)
Digestive Support
Probiotics
Read the full review

Lamb as the first ingredient makes this a budget-friendly entry point for owners exploring alternative proteins for their border collie puppy. The added probiotics help settle digestion, which is useful for medium-sized breeds prone to sensitive stomachs. The catch: chicken by-product appears in the ingredient list despite the 'Lamb and Rice' branding, so it's not suitable for pups with confirmed poultry allergies. Some puppies may also reject the kibble or develop loose stools.

Transition gradually to minimize digestive upset, and check ingredient labels carefully if your puppy has known sensitivities.

Bottom line: If your border collie puppy can handle chicken by-products, this formula delivers good digestive support at a reasonable price. For strict lamb-only diets, the chicken inclusion makes it a non-starter.

4

Purina ONE Plus Healthy Puppy

Purina ONE Plus Healthy Puppy

General growth

Our Score 9.4/10
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Worth Noting

  • Can cause loose stools during the transition period
  • Some batches may cause digestive upset even with gradual introduction
DHA
DHA
Kibble Size
—
First Ingredient
Real chicken
Digestive Support
—
Read the full review

Purina ONE Plus delivers the lowest cost per serving among quality brands, with real chicken first and DHA for brain development. The formula supports healthy weight gain and shiny coats in most puppies, and picky eaters generally accept the crunchy kibble with tender morsels. Digestive upset can occur during transition, particularly in puppies with sensitive stomachs, so this food suits robust eaters without known food sensitivities.

Transition over 7-10 days by mixing increasing amounts of Purina ONE with the current food to reduce digestive upset.

Bottom line: A budget-friendly choice for puppies with iron stomachs, but owners should plan a slow transition and watch for digestive signs.

5

Taste of the Wild High Prairie

Taste of the Wild High Prairie

Active working

Our Score 9.4/10
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Worth Noting

  • Premium pricing results in a higher cost per pound than many grain-inclusive puppy foods.
  • Some puppies may experience vomiting or diarrhea when switching to this high-protein formula.
DHA
—
Kibble Size
—
First Ingredient
Bison, venison
Digestive Support
Probiotics
Read the full review

Taste of the Wild High Prairie provides novel proteins – bison and venison – that make it a strong option for puppies with allergies to common meats like chicken or beef. Compared to the gentler Fromm Puppy Gold, this formula carries a higher risk of digestive upset, and the premium price reflects the specialized ingredients. Best suited for active medium-breed puppies, such as border collies, that need high protein for energy and have shown tolerance to grain-free diets. Puppies with sensitive stomachs may experience vomiting or diarrhea, so a slow transition is essential.

Transition gradually over 7-10 days to minimize digestive issues.

Bottom line: A targeted choice for active, allergy-prone puppies that tolerate grain-free diets – but not the gentlest on sensitive stomachs.

6

Blue Buffalo Baby Blue

Blue Buffalo Baby Blue

Cognitive development

Our Score 9.4/10
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Worth Noting

  • Some puppies may experience digestive upset including diarrhea.
DHA
DHA
Kibble Size
Small
First Ingredient
Real chicken
Digestive Support
—
Read the full review

Blue Buffalo Baby Blue uses real chicken as the first ingredient and includes DHA for cognitive development, plus small kibble suited for medium-breed puppies. However, some puppies may experience digestive upset such as diarrhea or vomiting, and palatability can decline after the first bag, making it less consistent than alternatives with gentler digestion.

Bottom line: A clean-ingredient choice for owners who prioritize DHA and small kibble over digestive predictability - works well for puppies with tolerant stomachs.

7

ORIJEN Puppy

ORIJEN Puppy
Our Score 9.4/10
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Worth Noting

  • Can cause diarrhea or vomiting in puppies with sensitive digestion.
Read the full review

ORIJEN Puppy uses 85% fresh/raw ingredients and a WholePrey philosophy, delivering unmatched ingredient quality for owners who prioritize that. However, the premium price, strong fish odor, and risk of digestive upset in some puppies make it a poor match for border collie puppies or those with sensitive stomachs.

Bottom line: Best for owners of robust-stomached puppies who demand the highest quality ingredients and are willing to tolerate the strong fish odor and premium cost.

8

Pedigree Puppy Steak

Pedigree Puppy Steak
Our Score 9.4/10
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Worth Noting

  • Digestive upset can occur in some puppies, limiting its use as a daily staple
Read the full review

Pedigree’s puppy formula is priced to stretch a tight budget, and the small kibble size makes it easy for tiny jaws and baby teeth. However, some puppies experience digestive upset after eating it, and the ingredient quality is lower than what border collie owners should rely on for daily feeding. This bag suits a temporary gap or a multi-puppy household where cost is the primary concern, not long-term nutrition.

Bottom line: A stopgap for rescue groups or when waiting for a premium brand to arrive, but not a primary food for border collies.

9

Diamond Puppy 31/20

Diamond Puppy 31/20

Budget bulk

Our Score 9.2/10
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Worth Noting

  • Some puppies may refuse the taste, requiring a switch if you have a picky eater
  • For a border collie puppy with a sensitive stomach, diarrhea can become a recurring issue that negates the cost savings
DHA
DHA
Kibble Size
Small
First Ingredient
Chicken
Digestive Support
Probiotics
Read the full review

The 20-pound bag at this price point is a clear budget win for multi-puppy households. However, the formula causes digestive upset at a rate that rules it out for border collies or any puppy with a sensitive system. This food works best for large kennels feeding puppies with proven iron stomachs, or as a short-term option for rescue operations.

Introduce gradually over 7-10 days to minimize diarrhea risk, but be prepared to switch if symptoms persist.

Bottom line: If your puppy has a robust stomach and you need to feed multiple dogs on a budget, this food works; otherwise, the digestive risk makes the savings less appealing.

10

Bully Max 30/20 Performance

Bully Max 30/20 Performance
Our Score 9.2/10
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Worth Noting

  • Rich formula can cause loose stools or gas in some puppies, requiring gradual transition.
Read the full review

Bully Max delivers fast weight gain in underweight puppies thanks to its high-calorie density and protein-to-fat ratio. At a luxury price point, it is too calorie-dense for normal-weight border collies and better suited for dogs that need rapid muscle building.

Bottom line: Best used for underweight or highly active working puppies that need fast weight gain and can tolerate a rich diet; not a general recommendation for normal-weight border collies.

11

Cesar Puppy Wet Food

Cesar Puppy Wet Food
Our Score 9.2/10
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Worth Noting

  • Strong smell may be off-putting during feeding time.
Read the full review

Cesar's single-serve trays offer a handy way to add moisture and entice picky eaters, with a chicken and beef recipe that many puppies enjoy. However, the strong odor can be unpleasant for owners, and palatability varies between puppies. This makes it a practical supplement rather than a complete everyday food.

Bottom line: Best used as a supplement or topper for puppies needing extra moisture or enticement, not as a primary food due to odor and variable appeal.

12

Purina ONE Wet Lamb

Purina ONE Wet Lamb
Our Score 9.2/10
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Worth Noting

  • Cans can arrive dented or with texture variation in some cases
Read the full review

This Purina ONE wet food delivers real lamb as the first ingredient and skips poultry by-products, making it a clean topper or mixer for dry kibble. At a mid-range price for a 12-can pack, it offers good value as a complement rather than a complete diet. However, wet food alone doesn’t provide the dental benefits of dry kibble for growing border collies, and some cans may arrive dented or with minor texture variations.

Bottom line: Use this as an occasional wet topper or mixer for a puppy that enjoys lamb – not as a primary food for a border collie’s dental and nutritional needs.

How to Choose

First Ingredient Quality

The first ingredient usually indicates the main protein source. Real meat (chicken, lamb, bison) provides essential amino acids, but meat meals are more concentrated. The trade-off: some 'lamb' formulas still contain chicken by-product, which can trigger allergies in sensitive pups.

Check the full ingredient list for hidden fillers or multiple protein sources that may cause reactions. A single novel protein like bison or venison can be beneficial for allergy-prone border collies, but it also limits food rotation options.

Protein Content Levels

Border collie puppies are active but don't need extremely high protein (over 35%) during growth. Excess protein can overwhelm their digestive system, leading to diarrhea and dehydration. Aim for 28-32% protein from digestible sources.

Grain-free formulas tend to be higher in protein but also higher in fat, which can cause rapid weight gain if portions are not strictly controlled. Moderate protein with whole grains often provides more stable energy without the digestive fallout.

DHA for Brain Development

DHA is an omega-3 fatty acid critical for cognitive and vision development in puppies. It is especially important for border collies, a breed known for intelligence and trainability. Most quality puppy foods include DHA, but the amount varies.

Look for foods that list DHA as a named additive or include fish oil as a source. However, DHA alone does not guarantee growth – it works best with balanced overall nutrition. A formula with DHA but poor digestibility may still cause problems.

Digestibility and Probiotics

Probiotics and prebiotics help maintain a healthy gut microbiome, reducing the likelihood of loose stools. The trade-off: not all probiotic strains survive storage or stomach acid. Some foods use live probiotics, while others rely on prebiotic fibers like chicory root.

Foods with lower digestive upset reports often combine whole grains and probiotics, rather than relying on high protein alone. For border collie puppies, a formula with both probiotics and a moderate protein level is the safest bet.

Kibble Size for Medium Breeds

Kibble size affects how quickly a puppy eats and how well it chews. For border collies, small-to-medium kibble (about 8-12mm) is ideal – small enough to be manageable for young jaws, but not so tiny that the puppy inhales it without chewing, which can cause choking or gulping.

Some breed-specific foods design kibble shape to encourage chewing, slowing down fast eaters. If your puppy is a gulper, choose a slightly larger kibble that forces them to bite and chew properly.

Frequently Asked Questions