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Why Your Dog Turns Into a Picky Eater When Summer Hits (And How to Help)

Alaa Mneimneh |

Summer brings so many joys, those epic sunset walks, lazy afternoons in the backyard, and maybe even a dog-friendly beach trip or two. But if you've been scratching your head wondering why your usually food-obsessed dog suddenly seems "meh" about dinner, you're definitely not alone. 

Research shows that dogs naturally eat about 15% less during the warmer months compared to winter. It's like they have their own built-in seasonal eating plan. 

What's Really Going On?

Think about it when it's blazing hot outside, are you reaching for that hearty stew or craving something lighter? Your dog's thinking the same way. Here's what's happening: 

They're naturally less active. Hot weather makes everyone (dogs included) want to move a little slower. Less zoomies around the yard means they don't need as much fuel in the tank. 

Their body's natural rhythm shifts. Those long, bright summer days can actually affect their hormones, slowing down digestion and making them feel satisfied longer.  

Eating feels like work when you're already warm. Just like you might skip that hot soup on a 90-degree day, your dog might pass on food when they're already trying to cool down. 

Your Summer Game Plan

"It’s completely normal for dogs to have a reduced appetite in warmer weather. Their metabolic needs drop with lower activity, and heat can suppress hunger signals. That’s why feeding during cooler times of the day – early morning or after sunset – often helps them feel more inclined to eat," says our in-house veterinarian at Wunderdog.

Here's what's happening and how to deal with it: 

The reality: Your dog's body is naturally adjusting to the season. They're moving less, their metabolism slows down, and eating large meals when it's hot simply doesn't feel comfortable. 

Your approach: Cut back their food by about 20-30% during peak summer months. Give them a lighter breakfast (30%) and save the bigger portion for evening (70%) when it's cooler. Stick with their usual food now's not the time for major changes. 

Most importantly, trust your instincts. If something feels off beyond normal summer sluggishness, don't hesitate to reach out. 

Ways to Make Mealtime Even More Appealing

Here are some additional proven strategies that really work: 

Set up their dining area somewhere cool and breezy, maybe that shaded corner of the kitchen instead of by the sunny window. 

Try switching up their protein or adding something special like a splash of bone broth. Turkey with Honey is considered one of our lighter recipes, making it a great option for warmer days.

"In warm weather, dogs may naturally eat less, but variety can help keep them engaged at mealtime. Rotating between lighter recipes—like turkey, lamb, or camel—can keep things interesting without overwhelming the digestive system. You can also add a functional topper like HydroHund or bone broth to enhance hydration and encourage eating, especially if your dog’s appetite is a bit off." says our in-house veterinarian at Wunderdog.

Feed them when they're naturally more interested, early morning before the heat kicks in, or evening when things cool down. You know how you're more interested in dinner at 6 PM than at noon on a hot day? Same concept. 

Keep those water bowls filled and fresh. Maybe even add an extra water station outside if they spend time in the yard. 

Graphic titled ‘5 Safe Summer Snacks’ showing gentle fruits and vegetables for dogs: cucumber (peeled), banana, cooked carrots, blueberries, and cooked pumpkin. Text notes they are low-acid, low-sugar, easy to digest, and contain no gas-causing fibres. Wunderdog logo in the corner.

When Should You Actually Worry?

A little summer pickiness? Totally normal. But keep an eye out for these warning signs: 

  • They're completely ignoring meals (not just being selective) 
  • Food sits untouched in their bowl for hours 
  • They seem unusually tired or off 
  • You notice they're losing weight 

If your dog goes on a total food strike or seems unwell, definitely give your vet a call. Sometimes appetite changes can signal other issues like infections or tooth pain.

Still Feeling Unsure?

Every dog is different, and you know yours better than anyone. If their eating habits have you concerned or they seem more lethargic than usual, just reach out to us. We're always here to help you figure out what's best for your pup.

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