When your dog’s thyroid slows down, the weight gain and fur loss are hard to miss. The right diet can support them alongside their medication.
Hypothyroidism means the thyroid gland isn’t producing enough hormone. It typically shows up as weight gain, low energy, thinning fur, and an unusual sensitivity to the cold.
This guide covers ten dog food options worth considering when your dog has hypothyroidism. We look at the nutrients that matter and the ingredients worth avoiding.
Let’s get into the picks.
Foods We’d Feed A Dog With Hypothyroidism
None of these replace the medication your vet prescribes. They give the nutrients that may help while the meds do their job.
We leaned toward lean protein and skipped the additives many owners are told to avoid. Each pick keeps things reasonably simple, with real meat leading the formula.
Quick Comparison Chart
| # | Product | Our Rating | ||
|---|---|---|---|---|
| 1 |  |
Diamond Naturals Skin & Coat | ★★★★★ | Check Price |
| 2 |  |
Hill's Science Diet Perfect Weight Wet Food | ★★★★★ | Check Price |
| 3 |  |
Nutrish Small Breed Chicken & Veggies | ★★★★☆ | Check Price |
| 4 |  |
Purina Pro Plan Shredded Blend Chicken & Rice | ★★★★☆ | Check Price |
| 5 |  |
Pedigree Complete Nutrition Grilled Steak | ★★★★☆ | Check Price |
| 6 |  |
Blue Buffalo Life Protection Chicken & Brown Rice | ★★★★☆ | Check Price |
| 7 |  |
Nutro Ultra Adult Dry Dog Food | ★★★★☆ | Check Price |
| 8 |  |
Wag Lamb & Lentil Grain-Free | ★★★★☆ | Check Price |
| 9 |  |
Purina ONE Chicken & Rice SmartBlend | ★★★★☆ | Check Price |
| 10 |  |
Taste of the Wild High Prairie | ★★★★☆ | Check Price |
1. Diamond Naturals Skin & Coat
A salmon and potato dry food with omega fatty acids, probiotics, and superfoods that supports healthy skin and coat for dogs at all life stages. Real salmon is the first ingredient.
Pros
- Real salmon as the first ingredient
- K9-strain probiotics support digestion and immunity
- Omega fatty acids for skin and coat health
- Made in the USA with trusted ingredients
- Family-owned brand with quality sourcing
Cons
- Larger kibble size can be difficult for small dogs
- Some owners report recipe changes causing sensitivity in certain dogs
- DCM concern with potato-based grain-free recipes per FDA advisory
Diamond Naturals is built around the idea that real food ingredients shouldn’t be negotiated away. The formulas are designed to work across life stages, so you’re not constantly switching bags as your dog ages.
Superfoods like chia seeds and blueberries show up alongside the main protein sources, and the brand offers several protein options including salmon, beef, and roasted chicken if your dog is particular about flavors.
The standout option for hypothyroid dogs is the salmon and potato formula, where real salmon is the first ingredient. It’s grain-free with high protein to help maintain lean muscle.
Skin issues are one of the most visible signs of hypothyroidism, and this formula is commonly recommended for dogs with food-related skin sensitivities. It also includes antioxidants and guaranteed probiotics to support digestion and immunity.
2. Hill’s Science Diet Perfect Weight Wet Food
A vet-recommended wet food with chicken and hearty vegetables clinically proven to support healthy weight in adult dogs. Low in preservatives and made in the USA.
Pros
- Clinically proven weight support formula
- Made with natural ingredients and added vitamins
- No artificial preservatives or dyes
- Veterinarian recommended for adult dogs
- Hearty chicken and vegetable flavor dogs enjoy
Cons
- Below-average protein content compared to typical wet foods
- Texture can be very dense and hard to remove from cans
- Some dogs experience digestive sensitivity when switching to canned food
Weight gain is one of the most frustrating parts of hypothyroidism, and this wet food from Hill’s Science Diet targets it directly.
Formulas are developed with input from veterinarians and nutritionists to ensure dogs actually get the nutrition they need. It’s made in the USA, free of artificial preservatives and dyes, with a chicken stew and hearty vegetable recipe that most dogs eat willingly.
This is a clinically proven weight support formula. The brand claims dogs can lose a significant portion of excess weight within 10 weeks of consistent use.
If the canned texture is too dense for your dog’s preference, a splash of broth or water before serving works fine without compromising the nutrition. It’s also gentle enough for older dogs dealing with digestive issues alongside their thyroid problems.
3. Nutrish Small Breed Chicken & Veggies
A small-breed dry food with real chicken as the first ingredient, sized kibble for small dogs, and natural ingredients with added vitamins and minerals.
Pros
- Real chicken is the first ingredient
- Small kibble pieces suit small breed dogs
- Natural food with added vitamins and minerals
- Supports lean muscle mass and healthy organs
- Affordable for everyday feeding
Cons
- Some dogs experience digestive issues including loose stools
- Some owners report quality inconsistencies between bags
- Contains corn-based fillers that some prefer to avoid
Grain-heavy diets can contribute to weight gain, which is already a challenge when a dog is hypothyroid. This grain-free option from Nutrish keeps carbs in check while still delivering real nutrition.
It comes in both dry and wet varieties, with broth-based options that include vegetables and fruit. Farm-raised chicken is the lead ingredient, and chicken fat provides the omega-3 and omega-6 fatty acids that help with coat condition and softness.
Cranberries are included as a natural antioxidant source, which can help with immune support for small dogs. If your dog is a small breed, the kibble size is actually proportioned for them, which makes a practical difference at feeding time.
4. Purina Pro Plan Shredded Blend Chicken & Rice
A high-protein dry food with shredded chicken pieces and rice, fortified with live probiotics for digestive health. Real chicken is the first ingredient.
Pros
- Real chicken as the first ingredient
- Guaranteed live probiotics for digestive and immune health
- Vitamin A and omega-6 fatty acids for skin and coat
- Dual kibble and shredded texture dogs find appealing
- Formulated by Purina nutritionists with decades of experience
Cons
- Shredded pieces can cause choking in fast eaters
- Some owners report loose stools when dogs transition to this food
- Bags occasionally arrive with mostly crumbled kibble
Purina Pro Plan has been in the dog food space for more than 80 years, and its formulas are developed by nutritionists with that track record behind them.
The shredded blend chicken and rice formula supports lean muscle in adult dogs, with vitamin A and linoleic acid included for healthy skin and a shiny coat. Both of those matter a lot for dogs dealing with thyroid-related fur and skin changes.
Digestion tends to slow down with hypothyroidism, and the live probiotics in this formula help keep that process moving. If your dog has sensitive teeth, soaking the kibble in warm water for a few minutes before serving softens it without affecting the taste.
Breeders and veterinarians commonly recommend this formula for adult dogs.
5. Pedigree Complete Nutrition Grilled Steak
An affordable, widely available dry food with grilled steak flavor, whole grains, and omega-6 fatty acids for skin and coat. No high fructose corn syrup or added sugar.
Pros
- No high fructose corn syrup, no added sugar
- Omega-6 fatty acids for a shiny coat
- Whole grains and fiber for digestive support
- Widely available at affordable prices
- Antioxidants, vitamins, and minerals included
Cons
- Corn is the first ingredient rather than named meat
- Has synthetic colorants that some owners prefer to avoid
- A small 2024 recall occurred due to potential metal fragments
Pedigree is one of the most widely recognized dog food brands, and for budget-conscious owners it’s genuinely hard to beat for accessibility. It comes in dry and gravy varieties, so picky eaters usually find something they’ll eat.
The grilled steak formula has whole grains and fiber for digestive support, plus high protein and no artificial flavors. No high fructose corn syrup or added sugar is a notable win for a hypothyroid dog that already struggles with weight.
It’s been a staple in the US for decades. The formula is simple, widely available, and gets the job done for owners who need a practical everyday option.
6. Blue Buffalo Life Protection Chicken & Brown Rice
A chicken and brown rice formula with LifeSource Bits delivering antioxidants, vitamins, and minerals. No poultry by-products, no corn, wheat, or soy.
Pros
- Real chicken is the first ingredient
- Exclusive LifeSource Bits for immune support
- No poultry by-product meals, corn, wheat, or soy
- Omega 3 and 6 fatty acids for skin and coat
- Glucosamine supports joint health
Cons
- Pricier than many comparable dry dog foods
- Some dogs experience digestive upset when first transitioning
- Ingredient sourcing from multiple manufacturers with limited transparency
Blue Buffalo’s Life Protection formula is designed to work across life stages with a focus on immune health and a clean ingredient list. For a hypothyroid dog that needs real nutrition without a lot of filler, that approach makes sense.
The chicken and brown rice formula uses real chicken as the first ingredient alongside garden veggies, and the LifeSource Bits deliver a blend of antioxidants including blueberries. No poultry by-products, no corn, no wheat, no soy.
It’s a popular choice with picky eaters. Blue Buffalo also offers more specialized formulas if your dog’s needs change over time.
7. Nutro Ultra Adult Dry Dog Food
A trio-protein dry food with chicken, lamb, and salmon plus a blend of 14 superfoods. Made with non-GMO ingredients and no corn, wheat, soy, or by-product meal.
Pros
- Protein trio of chicken, lamb, and salmon
- Blend of 14 superfoods for gourmet nutrition
- No corn, wheat, soy, or chicken by-product meal
- Omega 3 and 6 fatty acids for radiant skin and coat
- Natural fiber for healthy digestion
Cons
- Some dogs experience weight gain due to calorie density
- Occasional reports of digestive issues including loose stools
- Contains tomato pomace which some consider a lower-quality filler
Nutro Ultra has built a solid reputation for quality nutrition over decades in the pet food space.
It uses a trio of proteins from chicken, lamb, and salmon to deliver a well-rounded amino acid profile for adult dogs.
This formula is backed by a blend of 14 superfoods and made without corn, wheat, soy, or chicken by-product meal.
The recipe includes omega fatty acids to support radiant skin and a healthy coat.
Natural fiber helps keep digestion steady, and the non-GMO ingredients keep the formula clean.
8. Wag Lamb & Lentil Grain-Free
An Amazon brand grain-free dry food with American lamb as the first ingredient, plus lentils and peas for protein and nutrients. Vet formulated with no artificial additives.
Pros
- American lamb is the first ingredient
- No grain, corn, wheat, or artificial preservatives
- Lentils and peas provide vitamins and antioxidants
- Made in a family-owned California facility
- Satisfaction guarantee with refund within a year
Cons
- Lentils as a main ingredient flagged by FDA for possible DCM link
- Limited flavor variety compared to larger pet food brands
- Only available in a 5 lb bag which can be costly per pound
Wag is Amazon’s own pet food brand, formulated with veterinarian input and made in a family-owned California facility. American lamb is the first ingredient, and there’s no grain, corn, wheat, or artificial preservatives.
Lentils and peas round out the formula with vitamins and antioxidants, and salmon oil provides omega-3 fatty acids that help with coat brightness and skin condition. The protein content is substantial for building and maintaining muscle.
The recipe follows strict food safety protocols during production. It’s a clean, focused formula without a lot of filler, which suits dogs that need straightforward nutrition without extras that add strain to a sluggish metabolism.
9. Purina ONE Chicken & Rice SmartBlend
A real chicken and rice dry food with a dual texture of crunchy kibble and tender morsels, plus four antioxidant sources and natural glucosamine for joint health.
Pros
- Real chicken as the first ingredient
- Natural glucosamine supports joint health
- Four antioxidant sources for immune support
- Omega-6 fatty acids for skin and coat
- Made in Purina-owned US facilities
Cons
- High carbohydrate content at around 36 percent
- Kibble mix can vary bag to bag with dogs sometimes refusing it
- Minerals aren't chelated which may reduce absorption
Low energy and reduced activity are common with hypothyroidism, and Purina ONE SmartBlend is designed to support an active life rather than accommodate a sedentary one.
The formula uses real chicken as the first ingredient with no artificial preservatives or dyes. Four antioxidant sources support immune health, and natural glucosamine helps protect joint health, which matters as hypothyroid dogs tend to carry more weight than they should.
The dual-texture kibble, with crunchy pieces and tender morsels, makes the food more interesting for dogs that need a little coaxing at the bowl. Purina suggests a 28-day challenge to see visible changes in coat and energy.
They also offer specialized lines for sensitive stomachs and weight management if the standard formula needs an adjustment.
10. Taste of the Wild High Prairie
A grain-free dry food with roasted bison and venison as the first ingredients, plus K9-strain probiotics and antioxidant-rich fruits and superfoods.
Pros
- Roasted bison and venison as the first ingredients
- K9-strain probiotics for digestion and immunity
- Omega fatty acids for healthy skin and coat
- No corn, wheat, soy, or artificial additives
- Made in the USA with global trusted sources
Cons
- Broad ingredient list can trigger sensitivities in allergy-prone dogs
- Past lawsuit alleged trace heavy metals in some formulas
- Grain-free recipes remain under FDA investigation for DCM risk
Taste of the Wild draws on the idea that dogs do well with protein sources closer to what their ancestors ate. The High Prairie formula uses roasted bison and venison as the lead ingredients, which is less common than the typical chicken-first options.
The dry food has a distinct texture from that protein combination, and most dogs find it highly palatable. K9-strain probiotics support natural digestion across all life stages, which is helpful when hypothyroidism slows the gut down.
Fruits and vegetables are included for immune support, and the formula is free of grains, corn, soy, wheat, and artificial additives. If weight management is a concern, the absence of those fillers helps keep things clean.
How To Choose Food For Your Dog
Picking the right food requires thinking through a few basics before you land on a formula. Getting it wrong, like feeding small-breed dogs an adult large-breed formula, can cause digestive upset and make an already-struggling dog feel worse.
The main things to think through before buying:
- What’s the age of your dog
- What’s the breed of your dog
- What life stage is your dog going through
- What problems is your dog suffering due to hypothyroidism
You’ll also want to know which ingredients are best avoided for hypothyroid dogs.
Ingredients to avoid:
- Butylated hydroxyanisole (BHA)
- Butylated hydroxytoluene (BHT)
- Corn and wheat gluten
- Rendered fat
- Food dyes (Blue 2, red 40, yellow 5 and 6)
How To Change Your Dog’s Food
Any food switch should be done gradually over 10 to 12 days. Start by reducing the old food while adding small portions of the new one, increasing the ratio day by day.
Switching cold turkey almost always causes an upset stomach, which is the last thing a hypothyroid dog needs on top of everything else. For wet foods, you can adjust the broth amount to match what your dog tolerates.
Dogs with hypothyroidism should also stay away from grains, soy, corn, and poultry by-products. Check the label before you buy.
Final Thoughts
When a dog’s thyroid is underperforming, weight gain, coat thinning, and low energy are all on the table, and diet is one of the most practical levers you have alongside medication. Choosing food with omega fatty acids and clean, easily digested protein directly addresses those symptoms rather than just managing calories.
Diamond Naturals Skin and Coat is our top pick here because salmon-first nutrition and K9-strain probiotics tackle both the coat problems and the digestive slowdown that often travel together with hypothyroidism. If your vet has recommended managing protein intake as part of treatment, our overview of low-protein dog food options is worth reading alongside this list.
Look for formulas with a short, recognizable ingredient list and avoid anything heavy in artificial additives, which put extra strain on a metabolism that’s already working below capacity. Trusted brands with transparent sourcing make that evaluation much easier.
Consistent feeding, regular vet checkups, and the right formula working together give a hypothyroid dog the best chance at a full, comfortable life.
