Sussex Spaniel Feeding Guide
Published by DosageGuide · Reviewed
How much to feed your Sussex Spaniel, daily calories, portion sizes, and feeding schedule
Originating in England, the Sussex Spaniel is a medium-sized sporting breed that currently holds the #116 spot in AKC registrations. The only spaniel breed that routinely 'gives tongue' (barks) while working in the field, allowing hunters to follow their progress through dense brush. As a medium Sporting breed, the Sussex Spaniel was built for an active life of retrieving, flushing, and swimming. This athletic heritage directly shapes their nutritional needs, they require a protein-rich diet that supports sustained muscle performance and recovery. An adult Sussex Spaniel needs between 752 and 907 calories per day, though this varies with age, weight, activity level, and individual metabolism.
An adult Sussex Spaniel weighing 35 to 45 lb needs about 752 to 907 kcal a day, around 831 kcal for a neutered dog at a healthy weight with moderate activity. On a dry food of 380 kcal per cup that is 2-2.4 cups daily, roughly 211 to 253 grams, split into two meals; on wet food alone, 3-3.6 cans of 250 kcal; on a raw diet, 11-22 oz of food, about 2-3% of body weight. Weigh the ration rather than measuring it by cup, since kibble density varies by up to a third between brands, count treats inside that total rather than on top of it, and keep them under ten per cent of the calories. A Sussex Spaniel that gains or loses weight on these amounts needs a vet's opinion, not simply a different scoop: these figures are a starting point for a healthy dog, and they assume the 13-to-15-year life stage and activity level described below rather than pregnancy, illness or working days.
Two of the conditions this breed is screened for change how it should be fed, and the less common one matters more here because it is the one a general feeding guide never mentions. With intervertebral disc disease, every extra pound is leverage on the discs, and in this breed the difference between a lean dog and a heavy one is often the difference between a mobile dog and a surgical one. With hypothyroidism, an underactive thyroid slows the metabolism, so a dog on the correct ration can still gain; if weight rises without more food, that is a reason to test rather than to cut the ration further. Neither is a reason to choose a different food off the shelf; both are reasons to weigh the ration rather than estimate it.
A third predisposition worth knowing is hip dysplasia: every excess pound is carried by the joint, so the body-condition score matters more here than in a breed without the predisposition, and a dog kept one rib-width leaner has measurably less pain over its life. A Sussex Spaniel that never develops any of these still benefits from the same habits, because the habits are simply good feeding practice made specific.
A short coat makes body condition visible, which is the one advantage that matters at feeding time: the waist and the ribs can be seen and felt without parting fur, so the weekly check takes seconds and needs no scale. For a Sussex Spaniel, that is the check worth making weekly.
Males and females of this breed differ enough in size that one ration does not fit both: around 40 lb against 34 lb on average, a gap of 18 per cent. Feeding both from the same scoop overfeeds one and underfeeds the other, and the figures on this page should be read against the dog in front of you rather than against the breed average.
Feed an adult Sussex Spaniel approximately 0.5–0.9 cups of quality kibble daily, split into two meals. Males (35–45 lbs) may need slightly more than females (29–39 lbs). Males 40-44 lbs, females 35-40 lbs. Heavy for their height at 13-15 inches. Must be kept lean to protect the spine. The heaviest spaniel per inch of height.. With moderate energy (2/5), portions at the middle of guidelines usually suffice.
Daily Calorie Needs for Sussex Spaniel
Adult
752-907
kcal/day
Puppy (peak)
942
kcal/day (6-9 mo)
Senior
668-807
kcal/day
Note: Feeding guidelines are estimates based on standard veterinary formulas. Every dog is different, consult your veterinarian for personalized advice.
Feeding Strategy for Sussex Spaniels
With a calm, low-energy temperament, the Sussex Spaniel is particularly susceptible to overfeeding. Their daily requirement of 2-2.4 cups may seem surprisingly small, but exceeding it regularly leads to weight gain. A weight-management or light formula can help, and measuring every meal with a proper cup, not estimating, is essential for this breed.
Sussex Spaniel Feeding Schedule
Morning (7-8 AM)
1-1.2 cups kibble
Evening (5-6 PM)
1-1.2 cups kibble
Split Meals
Portion Sizes by Food Type
Daily Portions for Sussex Spaniel
Based on average adult weight and activity level
| Food Type | Daily Amount | Calories | Frequency | Notes |
|---|---|---|---|---|
| Dry Kibble | 2-2.4 cups | 752-907 kcal | 2 meals/day | ~380 kcal per cup |
| Wet Food | 3-3.6 cans | 752-907 kcal | 2 meals/day | ~250 kcal per 13oz can |
| Raw Diet | 11-22 oz | 752-907 kcal | 2 meals/day | 2-3% of body weight |
- Amount
- 2-2.4 cups
- Calories
- 752-907 kcal
- Frequency
- 2 meals/day
~380 kcal per cup
- Amount
- 3-3.6 cans
- Calories
- 752-907 kcal
- Frequency
- 2 meals/day
~250 kcal per 13oz can
- Amount
- 11-22 oz
- Calories
- 752-907 kcal
- Frequency
- 2 meals/day
2-3% of body weight
Exercise & Feeding for Sussex Spaniels
The Sussex Spaniel has modest exercise needs, 20-30 minutes of gentle walks and indoor play daily is usually sufficient. Because of their low activity level, there is rarely a need to adjust food intake for exercise. The bigger risk is overfeeding a relatively sedentary dog. If your Sussex Spaniel gets less activity than usual (bad weather, recovery from illness), consider reducing portions by 10%.
Joint Health & Nutrition
Joint health is a primary nutritional concern for Sussex Spaniels, which are predisposed to Hip Dysplasia. Diet plays a preventive and management role at every life stage. For puppies, controlled growth rate and proper calcium-phosphorus ratios protect developing joints. For adults, maintaining ideal body weight reduces mechanical stress on joints. Specific nutrients can slow cartilage degradation and reduce inflammation.
Recommended Joint Supplements
Heart-Supportive Nutrition
Sussex Spaniels have a genetic predisposition to Heart Conditions, making heart-supportive nutrition especially important. Choose foods naturally rich in taurine (found in animal proteins, especially dark meat and organ meats) and L-carnitine. Keep sodium moderate, not salt-free, but avoid high-sodium treats and table scraps. The FDA has investigated potential links between grain-free diets and dilated cardiomyopathy (DCM); while research is ongoing, discussing diet choices with your veterinarian is prudent for this breed. Omega-3 fatty acids from fish oil have demonstrated cardiovascular benefits in dogs, supporting healthy heart rhythm and reducing inflammation.
Thyroid Health & Diet
Hypothyroidism is a recognized concern in Sussex Spaniels, affecting metabolism, weight, coat quality, and energy level. A Sussex Spaniel with untreated hypothyroidism may gain weight despite eating normal portions, develop a thin or dull coat, and become lethargic. If your Sussex Spaniel shows these signs, a simple blood test can confirm the diagnosis. While thyroid medication (levothyroxine) is the primary treatment, dietary support matters: ensure adequate iodine and selenium in the diet, maintain strict portion control to prevent weight gain, and consider a weight-management formula if your dog is on thyroid medication but still struggling with weight.
Common Feeding Mistakes to Avoid
Overfeeding because the Sussex Spaniel always seems hungry
Some breeds appear perpetually hungry due to genetics or behavior. Stick to measured portions and use low-calorie treats like baby carrots, green beans, or ice cubes. If your Sussex Spaniel inhales food, try a slow-feeder bowl.
Skipping joint supplements until problems appear
For breeds predisposed to joint issues, preventive supplementation with glucosamine and omega-3 fatty acids can help protect cartilage before damage occurs. Starting these supplements early, even at 1-2 years old, is more effective than waiting for symptoms.
Blaming laziness for weight gain without checking thyroid
Sussex Spaniels are predisposed to hypothyroidism, which slows metabolism and causes weight gain even on normal portions. If your Sussex Spaniel is gaining weight despite measured feeding, ask your vet for a thyroid panel before simply cutting food.
Switching foods abruptly without a transition period
Any diet change, brand, flavor, or formula, should happen gradually over 7-10 days. Mix increasing amounts of the new food with decreasing amounts of the old. Abrupt switches cause digestive upset (diarrhea, vomiting, gas) in most dogs, Sussex Spaniels included.
Not accounting for treats in the daily calorie budget
Treats should never exceed 10% of your Sussex Spaniel's daily calorie intake. A single dental chew can contain 70-90 calories, significant for a dog that only needs 600 calories per day. Subtract treat calories from meal portions.
Sussex Spaniel-Specific Feeding Tips
Tip 1
Tip 2
Tip 3
Tip 4
Breed-Specific Nutritional Needs
Based on health conditions common in Sussex Spaniels, consider these nutritional adjustments:
Glucosamine & Chondroitin
Add a joint supplement with glucosamine (500-1000mg) and chondroitin. Consider foods with added omega-3 fatty acids (EPA/DHA) to reduce inflammation.
Taurine & L-Carnitine
Choose foods rich in taurine and L-carnitine. Moderate sodium intake. Omega-3 fatty acids from fish oil support cardiovascular health.
Iodine & Selenium
Ensure adequate iodine and selenium in the diet. Weight management is important as hypothyroidism can cause weight gain.
Sussex Spaniel Ideal Weight
Assessing your Sussex Spaniel's body condition (healthy range: 35–45 lbs): Rib check: Run your hands along the ribcage, you should feel individual ribs under a slight fat layer. Overhead view: A defined waist should be visible between ribs and hips. Side profile: The abdomen should tuck upward behind the last rib. Overweight Sussex Spaniels face higher risks of Intervertebral Disc Disease, joint problems, and shortened lifespan.
Male Sussex Spaniel
35-45 lbs
16-20 kg
Female Sussex Spaniel
29-39 lbs
13-18 kg
Related Guides
Feeding Guides for Similar Breeds
Frequently Asked Questions
An adult Sussex Spaniel typically needs 752-907 calories per day, which translates to approximately 2-2.4 cups of dry kibble daily, split into two meals. However, this is a starting point, your specific dog's needs depend on their exact weight within the 35-45 lb range, activity level, metabolism, and whether they're spayed/neutered (which reduces calorie needs by about 20-30%).
Adult Sussex Spaniels should be fed twice a day, ideally 12 hours apart (morning and evening). Some owners of medium breeds prefer three smaller meals, which can help with digestion and energy levels throughout the day. Consistent meal times help regulate digestion, blood sugar, and make house training easier.
Look for a food that lists real meat (not meal or by-products) as the first ingredient, contains 22-30% protein, and is formulated for medium breeds. A standard adult formula from a reputable brand that meets AAFCO standards provides complete nutrition.
Given the Sussex Spaniel's predisposition to joint issues, consider: glucosamine HCl (250-500mg/day), chondroitin sulfate, and omega-3 fish oil (EPA/DHA). Green-lipped mussel extract is also showing promise in studies. Many premium dog foods already include glucosamine, check your current food's label before adding supplements. Start joint support early (1-2 years old) for prevention rather than waiting for symptoms to appear. Always consult your vet before starting a supplement regimen.
Raw (BARF) diets are an option for Sussex Spaniels, with proponents citing shinier coats, cleaner teeth, and better digestion. A typical raw diet provides 2-3% of body weight daily, for a Sussex Spaniel, that means roughly 11-22 oz per day. The diet should include muscle meat (70%), raw meaty bones (10%), organ meat (10%), and vegetables/fruits (10%). However, raw diets carry risks of bacterial contamination and nutritional imbalance if not properly formulated. Consult a veterinary nutritionist before switching.
A healthy adult Sussex Spaniel weighs between 35-45 lbs (males: 35-45 lbs, females: 29-39 lbs). Use the body condition score (BCS) method: you should be able to feel ribs with light pressure but not see them, observe a visible waist when viewed from above, and notice an abdominal tuck from the side. If your Sussex Spaniel exceeds 52 lbs or you can't feel the ribs, consult your vet about a weight management plan.
Males: 35–45 lbs. Females: 29–39 lbs. Males 40-44 lbs, females 35-40 lbs. Heavy for their height at 13-15 inches. Must be kept lean to protect the spine. The heaviest spaniel per inch of height.. Consult your vet for a personalized assessment.
The Sussex Spaniel is predisposed to Intervertebral Disc Disease, Hip Dysplasia, Otitis Externa, and other conditions. The breed's long back and short legs create orthopedic vulnerabilities. Maintaining lean body weight is crucial for spinal health.. An adult Sussex Spaniel weighs 35-45 lb, which is what sets the daily ration: energy needs rise with body weight but not in a straight line, so a dog twice as heavy does not eat twice as much.
Feeding Guidelines Disclaimer
The feeding recommendations on DosageGuide.com are estimates based on standard veterinary nutrition formulas (RER = 70 × weight^0.75) and general guidelines from AAFCO and veterinary nutrition resources.
Every dog is unique. Actual calorie needs vary based on breed, metabolism, activity level, health conditions, spay/neuter status, and the specific food brand you use. Always consult your veterinarian for personalized feeding advice.
These guides are for general reference and do not replace professional veterinary guidance. Adjust portions based on your dog's body condition score and weight trends.