Most Expensive Dog Breeds to Feed in 2026: Top 15 Ranked

Some dogs eat like a horse — literally. Giant breeds can cost over $150 per month just in food. Here are the 15 most expensive dog breeds to feed, ranked by monthly cost using Purina Pro Plan pricing.

The Top 15 Most Expensive Breeds to Feed

RankBreedAvg WeightMonthly (Purina Pro Plan)Monthly (Premium)Annual Cost
1Mastiff160 lbs$157$200+$1,884
2Saint Bernard150 lbs$120$175$1,440
3Great Dane140 lbs$119$165$1,428
4Newfoundland130 lbs$112$160$1,344
5Rottweiler95 lbs$88$130$1,056
6Bernese Mountain Dog90 lbs$82$120$984
7Bloodhound90 lbs$82$118$984
8Doberman Pinscher80 lbs$80$115$960
9German Shepherd75 lbs$75$108$900
10Akita80 lbs$72$105$864
11Weimaraner65 lbs$66$97$792
12Golden Retriever70 lbs$68$95$816
13Boxer70 lbs$68$95$816
14Labrador Retriever70 lbs$68$91$816
15Greyhound65 lbs$60$90$720

Why Giant Breeds Cost So Much to Feed

The math is simple: bigger dogs eat more. A Mastiff can weigh 160-200 lbs — that's 30+ times more than a Chihuahua. But the cost doesn't scale linearly because dogs have a metabolic scaling factor (body weight^0.75). Still, the difference is dramatic:

The Mastiff costs nearly 10x more to feed than a Chihuahua, even though it's only 32x heavier.

How to Save on Large Breed Food Costs

If you own one of these expensive breeds, here's how to keep costs manageable:

  • Buy 30-40lb bags — saves 28-44% vs 15lb bags
  • Subscribe & Save on Chewy or Amazon — saves 5-15%
  • Stick to mid-tier brands — Iams or Purina Pro Plan offer great value for healthy dogs
  • Don't overfeed — many owners feed 20-30% more than necessary; use a kitchen scale
  • Consider Costco's Kirkland brand for large-breed formula

For more tips, see our complete guide to saving on dog food.

How Much Does YOUR Dog Cost to Feed?

Get a personalized estimate based on your dog's exact breed, weight, activity, and food brand.

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Reviewed by Dr. Sarah Mitchell MSc Animal Nutrition, Certified Pet Food Advisor (CPFA)

Data sourced from American Kennel Club (AKC) breed standards, ASPCA pet nutrition guidelines, AAFCO nutritional requirements, and American Veterinary Medical Association (AVMA) nutritional guidelines. Our calculator uses the veterinary-standard Resting Energy Requirement (RER) formula. Last reviewed May 2026.