IAMS Senior Small Medium Complete Dry Dog Food Chicken 3kg - With DentalCare System vs Chudleys Senior Complete Dry Dog Food with Chicken, Oats, Rice & Vegetables, 14 kg
Side-by-side comparison of scores, ingredients, prices and real customer feedback for IAMS Senior Small Medium Complete Dry Dog Food Chicken 3kg - With DentalCare System and Chudleys Senior Complete Dry Dog Food with Chicken, Oats, Rice & Vegetables, 14 kg.
Last verified: 07 Apr 2026 · Based on 25 reviews
IAMS Senior Small Medium Complete Dry Dog Food Chicken 3kg - With DentalCare System scores 71.0/100 vs Chudleys Senior Complete Dry Dog Food with Chicken, Oats, Rice & Vegetables, 14 kg at 70.0/100. IAMS Senior Small Medium Complete Dry Dog Food Chicken 3kg - With DentalCare System wins on value for money, palatability. Chudleys Senior Complete Dry Dog Food with Chicken, Oats, Rice & Vegetables, 14 kg is stronger on ingredient quality and nutritional value.
Which is better: IAMS Senior Small Medium Co... or Chudleys Senior Complete Dr...?
IAMS edges ahead with a score of 71 vs 70 and costs significantly less per kg, making it the better pick for most senior small and medium breed owners. Chudleys is the stronger choice for larger, less active breeds — particularly DCM-susceptible dogs — thanks to its taurine and L-carnitine additions.
— AIScored Editorial Team
How Do the Scores Compare?
IAMS Senior Small Medium Co...
IAM
|
Chudleys Senior Complete Dr...
Chudley's
|
|
|---|---|---|
| Overall Score | 71.0 | 70.0 |
| Ingredient Quality | 65.0/100 |
70.0/100
Best
|
| Nutritional Value | 68.0/100 |
76.0/100
Best
|
| Value for Money |
76.0/100
Best
|
72.0/100 |
| Transparency |
62.0/100
Best
|
62.0/100
Best
|
| Palatability |
83.0/100
Best
|
65.0/100 |
| Best Price |
£10.50
Amazon UK →
Cheapest
|
£25.49 Amazon UK → |
| Form | ||
| Dose | ||
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 12 | 13 |
IAMS Senior Small Medium Complet...
Pros
- ✓Strong palatability reported consistently — including fussy small breeds and multi-dog households
- ✓Named chicken as primary protein source; no generic meat derivatives or by-products listed
- ✓Wheat-free formula appropriate for dogs with grain sensitivities
- ✓Dental care system addresses a genuine senior health concern
Cons
- ✗Produced in a facility that handles wheat — cross-contamination risk for dogs with confirmed wheat allergy
- ✗No disclosed quantities for joint-support ingredients (glucosamine/chondroitin) despite joint health claim
- ✗Mid-market formulation — ingredient quality is decent but not premium (no fresh/whole meat, likely uses dried chicken)
- ✗Reviews are largely generic ('great food', 'dogs love it') with limited detail on digestibility or stool quality
Best For
Chudleys Senior Complete Dry Dog...
Pros
- ✓Named chicken as primary protein — no generic meat derivatives or by-products
- ✓Taurine inclusion supports cardiac health, important for senior dogs and DCM-susceptible breeds
- ✓L-carnitine aids metabolism and weight management in less active older dogs
- ✓Joint care package with omega-3 fatty acids addresses musculoskeletal decline typical in seniors
Cons
- ✗Palatability not universal — at least one reviewer's dogs refused the food entirely
- ✗Full ingredient list, guaranteed analysis, and percentages not provided in product description, limiting full nutritional audit
- ✗Oats and rice carbohydrate base may not suit grain-sensitive dogs
- ✗Calorie density may be insufficient for senior dogs still in active working roles
Best For
What does the data say about IAMS Senior Small Medi... vs Chudleys Senior Comple...?
Both foods score similarly overall — IAMS at 71/100 for £10.50 (3kg) and Chudleys at 70/100 for £25.49 (14kg) — but they're quite different in composition and intent. IAMS leans into dental care with its DentalCare System and is explicitly wheat-free, making it more relevant for dogs with grain sensitivities, though the facility cross-contamination caveat is worth noting for dogs with confirmed allergies. Chudleys takes a broader nutritional approach, adding taurine for cardiac support and L-carnitine for metabolism — ingredients that matter particularly for DCM-susceptible breeds and dogs moving into a less active retirement. Both use named chicken as primary protein with no generic meat derivatives, which is reassuring at this price tier.
If you have a small or medium breed senior dog that grazes fussily or lives alongside other dogs needing consistent daily nutrition, IAMS is the more practical and economical pick. At roughly £3.50 per kg, it delivers reliable palatability — including for notoriously picky small breeds — without breaking the bank. Chudleys works out cheaper per kilo at around £1.82, making it the better value buy for larger dogs or multi-dog households, and its cardiac and metabolic support ingredients give it an edge for retired working breeds like labradors, spaniels, or collies.
The main practical caveat with Chudleys is palatability — at least one reviewer's dogs refused it outright, which is a real risk when buying a 14kg bag. With IAMS, the joint health claims (glucosamine and chondroitin) lack disclosed quantities, so don't rely on it as a meaningful joint supplement. Neither product is third-party tested, so you're taking the manufacturer's word on ingredient sourcing and quality.
IAMS Senior Small Medium Chicken is a mainstream complete dry food formulated for senior small-to-medium dogs, featuring named chicken as the primary protein source and claiming 82% animal-derived protein out of total protein — a creditable figure for this price tier.
What are the key differences?
Frequently Asked Questions
Which is better, IAMS Senior Small Medium Complete Dry Dog Food Chicken 3kg - With DentalCare System or Chudleys Senior Complete Dry Dog Food with Chicken, Oats, Rice & Vegetables, 14 kg? ▼
Is IAMS Senior Small Medium Complete Dry Dog Food Chicken 3kg - With DentalCare System worth the price compared to Chudleys Senior Complete Dry Dog Food with Chicken, Oats, Rice & Vegetables, 14 kg? ▼
Which has fewer side effects? ▼
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What the Data Says
Which senior dog food brands use named meat sources vs 'derivatives'?
All top 10 senior dog foods in our database use named meats and zero by-products. Across 20 scored products, the pattern is consistent: higher ingredient quality tracks with specific protein sourcing.
The top five by overall score:
- Naturediet Feel Good Wet (82/100, IQ 83) — chicken and turkey
- Pooch & Mutt Adult Minis (78/100, IQ 81) — chicken
- Pooch & Mutt Complete Senior (77/100, IQ 78) — chicken
- Pooch & Mutt Slim & Slender (77/100, IQ 79) — chicken
- Skinner's Field & Trial Light & Senior (74/100, IQ 70) — chicken
The ingredient quality spread is 18 points (83 down to 65), and it tracks closely with how specific brands are about their protein sources.
Why it matters: "meat and animal derivatives" is a legal catch-all that lets manufacturers swap protein sources between batches. Named meats — "chicken 26%" or "turkey 30%" — lock the recipe down. For senior dogs with sensitive digestion, that consistency matters. Check the first three ingredients: if you see a specific animal name with a percentage, you know what your dog is eating.
Does senior dog food need to be grain-free?
The data says no. Our top-scoring senior dog food — Naturediet Feel Good Wet at 82/100 — contains grains and still outperforms every grain-free option in the category.
The top five is split on grain status:
- Naturediet Feel Good Wet (82/100, IQ 83) — not grain-free
- Pooch & Mutt Adult Minis (78/100, IQ 81) — grain-free
- Pooch & Mutt Complete Senior (77/100, IQ 78) — grain-free
- Pooch & Mutt Slim & Slender (77/100, IQ 79) — grain-free
- Skinner's Field & Trial (74/100, IQ 70) — gluten-free, not grain-free
What actually separates good from mediocre senior dog food: named meat content, absence of by-products, and overall formulation quality. Grains like brown rice and oats provide fibre and slow-release energy that many senior dogs handle well.
The grain-free trend started from concerns about specific grain allergies — real, but uncommon. Unless your vet has identified a grain sensitivity, ingredient quality scores are a better predictor of food quality than the grain-free label alone.
Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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