Wet and dry dog food in bowls side by side comparison for UK owners

Wet vs Dry Dog Food: Which Is Best for Your Dog?

Key Takeaways
  • Both wet and dry dog food can provide complete, balanced nutrition - the right choice depends on your dog's size, age, health, and your budget.
  • Wet food has roughly 70-80% moisture, which boosts hydration and makes meals more palatable for fussy eaters and seniors. Forthglade Ocean Fish Wet Trays is a natural, hypoallergenic wet option.
  • Dry kibble is cheaper per serving, easier to store, and its crunchy texture gives a modest dental benefit. Harringtons Salmon & Potato 12kg is a solid budget-friendly dry choice.
  • Mixed feeding (combining wet and dry) gives your dog the hydration and taste of wet food plus the value and convenience of kibble - most owners end up here.
  • Whatever you choose, pick a complete food that meets FEDIAF standards and matches your dog's life stage, then adjust portions to keep them at a healthy weight.

Suggested Reading: How Much to Feed Your Cat UK

The wet vs dry dog food question is one of the most common things UK dog owners ask their vets. And it makes sense - the choice affects your dog's hydration, teeth, weight, digestion, and your monthly pet food budget.

As a veterinary surgeon, I've treated dogs that thrived on wet food, dogs that did brilliantly on dry, and plenty that eat a mix of both. The honest answer is that there's no single "best" option. What matters is choosing a complete, balanced food that fits your individual dog's needs and your lifestyle.

In this guide, I'll break down the real differences between wet and dry dog food, look at the pros and cons of each, compare real prices, and help you decide which approach works best for your dog.

Wet Dog Food - The Pros and Cons

Wet dog food (also called tinned, pouched, or tray food) contains roughly 70-80% water. The high moisture content is a genuine benefit for hydration, and the strong smell and soft texture make it very appealing to most dogs.

Benefits of Wet Food

Hydration. Dogs don't have a strong thirst drive, and many don't drink enough on their own, especially in summer. Wet food delivers a significant portion of their daily water intake through the meal itself. This is particularly valuable for dogs prone to urinary issues or kidney problems.

Palatability. Most dogs find wet food irresistible - the aroma and texture make it ideal for fussy eaters, senior dogs with dental pain, and dogs on medication that need food to hide tablets in. Premium natural brands like Forthglade Grain Free Variety Trays use freshly prepared meat and hold up well in taste tests.

Portion control. Individual trays and pouches make it easy to measure exact portions, which helps with weight management and makes it simple to adjust amounts when your dog's activity changes.

Lower carbohydrate content. Wet food generally contains fewer carbohydrates than kibble because it doesn't need the starches that dry food requires for its manufacturing process.

Drawbacks of Wet Food

Cost. Wet food is noticeably more expensive per serving than dry. A pack of Winalot Meaty Chunks in Gravy 40x100g costs around ยฃ14 and feeds a medium dog roughly two weeks - a 12kg bag of dry food costs less and lasts much longer.

Shelf life. Once opened, wet food must be refrigerated and used within 24-48 hours. Left in the bowl for more than an hour or two, it can spoil, and in summer it goes off faster still.

Mess. Wet food is messier to serve and clean up after, and some dogs with sensitive stomachs react to rich, high-protein wet recipes if they're switched too quickly.

Dental health. Wet food does nothing to clean teeth. Dogs on an all-wet diet miss out on the mild abrasive action that kibble provides.

Dry Dog Food - The Pros and Cons

Dry dog food (kibble) contains around 8-10% water. It's the most popular choice in the UK for its convenience and cost-effectiveness, and modern kibble is nutritionally complete when chosen well.

Benefits of Dry Food

Cost-effective. Dry food works out considerably cheaper per meal. A 12kg bag of Harringtons Complete Salmon & Potato 12kg costs around ยฃ30-35 and can last a large dog three to four weeks, or a small dog two months or more.

Convenience. Dry kibble doesn't spoil if left out, which suits free-feeding schedules and owners who are out all day. It's easy to store, measure, and serve, and it keeps for months in a sealed container.

Dental benefits. The crunchy texture of kibble provides some mechanical scraping action as your dog chews, which can help slow plaque and tartar build-up. It's a modest effect - nowhere near as good as brushing - but it's more than wet food offers.

Variety and special diets. Dry food comes in a huge range of formulations - grain-free, senior, weight management, hypoallergenic, and breed-specific. Hypoallergenic options like James Wellbeloved Turkey & Vegetables 10kg are designed for dogs with sensitive skin and digestion.

Drawbacks of Dry Food

Low moisture. This is the single biggest concern with dry-only feeding. A dog on an all-dry diet relies entirely on their water bowl, and many dogs simply don't drink enough, particularly in winter or when the water isn't fresh. Chronic mild dehydration can stress the kidneys over time.

Palatability. Some dogs, especially seniors and fussy eaters, turn their noses up at kibble. If your dog won't eat their dry food, no amount of nutritional quality helps.

Higher carbohydrate content. Kibble needs carbohydrates to hold its shape. For dogs that are prone to weight gain or have diabetes, this means you need to watch portions more carefully.

Calorie density. Dry food is calorie-dense and easy to overfeed. A medium dog needs only around 250-350g of dry food per day depending on the brand - check the feeding guide and weigh portions rather than eyeballing them.

Quick Comparison: Wet vs Dry Dog Food

Factor Wet Food Dry Food
Moisture content 70-80% 8-10%
Cost per day (medium dog) ยฃ1.00-2.00 ยฃ0.40-0.90
Hydration support Excellent Poor (needs water bowl)
Dental benefit None Moderate (kibble abrasion)
Palatability Very high Good for most dogs
Carbohydrates Lower Moderate to high
Shelf life (opened) 24-48 hours (fridge) Weeks (sealed container)
Best for Hydration, fussy eaters, seniors Budget, convenience, dental care

Can You Feed Both Wet and Dry Dog Food?

Yes - and for most dogs, mixed feeding is genuinely the best of both worlds. Combining wet and dry food gives your dog the hydration and taste benefits of wet food, plus the convenience and value of dry kibble, while keeping your costs manageable.

How to do it right:

  • Feed a portion of wet food in the morning and dry food in the evening, or mix them together in the same bowl for picky eaters.
  • Adjust the quantities so your dog's total daily calorie intake stays appropriate for their ideal weight - roughly 60% dry and 40% wet by calorie is a common starting point.
  • Choose well-made options for both. A quality wet food like Lily's Kitchen Natural Wet Trays Multipack combined with a good complete kibble gives balanced nutrition.
  • Always provide fresh, clean water, and re-fill the bowl daily.

Most dogs adjust to mixed feeding quickly, and it gives you flexibility - if you're running late or going away for the day, dry food can stay out longer without spoiling.

Which Type of Food Is Right for Your Dog?

Choose wet food if:

  • Your dog is a fussy eater or has a poor appetite - wet food is harder to resist
  • Your dog is a senior with dental problems or missing teeth
  • Your dog has urinary or kidney concerns and needs extra hydration
  • Your dog needs to gain weight or you need to hide medication in food
  • You rarely see your dog at the water bowl and worry about their fluid intake

Choose dry food if:

  • You're on a tight budget - dry food is significantly cheaper per meal
  • You have a large breed dog - wet-only feeding gets expensive fast
  • You need food that won't spoil when left out during the day
  • Your dog is a good drinker with no health concerns and a healthy weight
  • You want the convenience of long-lasting, easy-to-store kibble

Choose mixed feeding (both) if:

  • You want the hydration and taste of wet food with the value of dry
  • Your dog has no specific health concerns and enjoys variety
  • You want to manage costs while still giving wet food regularly
  • Your dog eats well on a combined diet and maintains a healthy weight

Frequently Asked Questions

Is wet or dry dog food better for dental health?

Dry kibble provides some mechanical abrasion that can help slow plaque build-up, but the effect is modest and no substitute for brushing. Wet food has no dental benefit at all. Neither type prevents dental disease on its own - regular tooth brushing and dental chews matter far more than food format.

Can I mix wet and dry dog food together?

Yes, mixed feeding is a healthy and common approach used by many UK owners. It combines the moisture and palatability of wet food with the convenience and value of dry kibble. Just adjust portion sizes so your dog's total daily calories stay appropriate, and split meals into two servings to aid digestion.

How much dog food should I feed per day?

A typical adult dog needs roughly 2-3% of its ideal body weight in food per day, but this varies hugely with breed, age, and activity level. Always follow the feeding guide on the bag or tray as a starting point, then adjust based on your dog's body condition. Weigh portions rather than guessing.

Is grain-free dog food actually better?

Not for most dogs. True grain allergies are uncommon - most dogs with skin or tummy issues are actually reacting to animal proteins like chicken or beef. Grains provide useful carbohydrates and fibre. Choose a complete food that suits your dog's needs, and only go grain-free if your vet specifically recommends it.

Should puppies eat wet or dry food?

Puppies need a complete puppy formula with higher protein, fat, and calcium for growth. Wet food is easier for very young puppies, especially during weaning, while dry puppy kibble supports chewing development. Many owners start on wet and transition to dry by 4-6 months. Never feed adult food to a growing puppy - the calcium balance matters for bone development.

Which is more cost-effective for a large breed dog?

Dry food is significantly cheaper per kilogram and per serving, so large breeds are usually fed mostly dry food. A 12kg bag of Harringtons Salmon & Potato costs around ยฃ30-35 and can last a large dog several weeks. Wet food for a big dog gets expensive fast - budget around ยฃ2-4 per day for wet-only feeding.

Final Verdict

After weighing the evidence, here's my professional recommendation as a veterinary surgeon: for most dogs, feed both.

A mixed feeding approach gives your dog the hydration benefits and palatability of wet food with the convenience and cost savings of dry kibble. Offer a portion of quality wet food like Forthglade Grain Free Variety Trays once a day for moisture and taste, and complement it with a measured amount of dry kibble like Harringtons Salmon & Potato for the rest of their daily calories.

If you can only afford one, choose wet food for fussy eaters, seniors, and dogs with urinary or kidney concerns, and dry food for healthy dogs on a tight budget - especially larger breeds where wet-only feeding is pricey. But if you can manage both - and most owners can - your dog gets the best of both worlds.

Remember to always provide fresh water, weigh portions based on your dog's ideal weight, and talk to your vet before making significant dietary changes, particularly if your dog has an existing health condition.

Products mentioned in this guide:

E
Dr. Emma Foster

Dr. Emma Foster is a UK-registered veterinary surgeon with 12 years of experience in small animal practice across Sussex and Surrey. She qualified from the Royal Veterinary College and specialises in preventive care, nutrition, and behavioural medicine for dogs, cats, rabbits, and small mammals.

Disclosure: WhoPets is reader-supported. When you buy through links on our site, we may earn an affiliate commission. This comes at no extra cost to you and helps us keep providing free, independent advice. We never accept paid placements or sponsored reviews. Read our full affiliate disclosure.

As an Amazon Associate we earn from qualifying purchases.

Last reviewed: August 1, 2026 ยท Evidence-based content ยท Contains affiliate links

๐Ÿพ Get WhoPets Tips & Reviews

Get the latest pet care guides and product reviews delivered to your inbox.