Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg vs Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg and Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg.
Last verified: 07 Apr 2026 · Based on 24 reviews
Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg scores 77.0/100 vs Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg at 74.0/100. Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg wins on ingredient quality, transparency, palatability. Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg is stronger on nutritional value and value for money.
Which is better: Pooch & Mutt - Slim & Slend... or Skinner’s Field & Trial Lig...?
Pooch & Mutt edges ahead with stronger effectiveness and ingredient quality scores (79 vs 70), making it the better pick for dogs that genuinely need to lose weight. Budget-conscious owners with senior or less active dogs will find Skinner's the smarter buy at £16 less with added glucosamine for joint support.
— AIScored Editorial Team
How Do the Scores Compare?
Pooch & Mutt - Slim & Slend...
Pooch & Mu
|
Skinner’s Field & Trial Lig...
Skinners
|
|
|---|---|---|
| Overall Score | 77.0 | 74.0 |
| Ingredient Quality |
79.0/100
Best
|
70.0/100 |
| Nutritional Value | 71.0/100 |
75.0/100
Best
|
| Value for Money | 67.0/100 |
77.0/100
Best
|
| Transparency |
82.0/100
Best
|
68.0/100 |
| Palatability |
87.0/100
Best
|
83.0/100 |
| Best Price | £47.00 Amazon UK → |
£30.59
Amazon UK →
Cheapest
|
| Form | ||
| Dose | ||
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 12 | 12 |
Pooch & Mutt - Slim & Slender Co...
Pros
- ✓45% named chicken with no by-products or meat meal — highly transparent sourcing
- ✓Proven weight loss results reported across multiple breeds including fussy eaters (Akita, Labs, spaniels)
- ✓Excellent palatability — accepted even by dogs that rejected other diet foods
- ✓Good digestive tolerance — multiple reviewers note no stomach upset or loose stools
Cons
- ✗Premium price — reviewers explicitly note it is 'rather expensive'
- ✗Pea protein (a legume) raises ongoing concern linked to canine dilated cardiomyopathy (DCM) under FDA investigation — consult vet for long-term use
- ✗Weight loss rate can be slow for some dogs — one owner notes 'small amount' of loss after several months
- ✗Labelled for adult dogs, not specifically formulated for senior nutritional requirements (reduced phosphorus, added joint support) despite appearing in a senior category
Best For
Skinner’s Field & Trial Light & ...
Pros
- ✓Named chicken as protein source with no vague meat derivatives or by-products
- ✓Wheat gluten-free formula — well tolerated by dogs with grain sensitivities and sensitive stomachs
- ✓Fortified with glucosamine and chondroitin for joint health, important for senior dogs
- ✓No artificial colours, flavours or preservatives; locally sourced ingredients where possible
Cons
- ✗Reduced protein levels may be insufficient for very lean senior dogs or those with muscle-wasting conditions — always verify protein % meets individual needs
- ✗Price fluctuates noticeably on Amazon, making budgeting unpredictable for regular buyers
- ✗Full ingredient list not disclosed in product listing — exact carbohydrate source and fibre type cannot be independently assessed
- ✗Not suitable as a sole diet for highly active working dogs or underweight seniors who need higher calorie density
Best For
What does the data say about Pooch & Mutt - Slim & ... vs Skinner’s Field & Tria...?
Both products target weight management but serve different dogs. Pooch & Mutt Slim & Slender (77/100, £47 for 10kg) is built around 45% named chicken with transparent sourcing and no meat meal or by-products — a noticeably higher-quality ingredient profile than many diet foods. Skinner's Field & Trial Light & Senior (74/100, £30.59 for 15kg) also uses named chicken and avoids wheat gluten, but adds glucosamine and chondroitin, making it better suited to the specific physical needs of older dogs.
If your dog is an overweight adult — particularly a fussy eater who has rejected other diet foods — Pooch & Mutt is worth the premium. Reviewers report genuine weight loss across a wide range of breeds, and the palatability is unusually good. However, the pea protein content is worth discussing with your vet if you're planning long-term feeding, given ongoing FDA investigation into legumes and canine DCM. At £4.70/kg, it's a real outlay.
Skinner's is the more practical pick for senior dogs aged seven-plus, where joint support matters as much as calorie control. At roughly £2.04/kg it's considerably cheaper, though the fluctuating Amazon price makes budgeting slightly unreliable. The lower effectiveness score (70 vs 79) reflects more modest weight-loss evidence, so if rapid results are the priority, Pooch & Mutt has the stronger track record.
Pooch & Mutt Slim & Slender uses 45% named chicken as its sole animal protein — a high-quality, transparent choice with no by-products or meat meal.
What are the key differences?
Frequently Asked Questions
Which is better, Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg or Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg? ▼
Is Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg worth the price compared to Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg? ▼
Which has fewer side effects? ▼
Related Product Comparisons
Naturediet - Feel Good Wet Dog Food, Natural and Nutritionally Balanced, Senior-Lite, 390g (Pack of 18)
vs Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg
Naturediet - Feel Good Wet Dog Food, Natural and Nutritionally Balanced, Senior-Lite, 390g (Pack of 18)
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Pooch & Mutt - Adult Minis Superfood Complete Dry Dog Food Grain Free (Small Sized Kibble), for Small Dogs, Chicken, 7.5kg
vs Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg
Pooch & Mutt - Adult Minis Superfood Complete Dry Dog Food Grain Free (Small Sized Kibble), for Small Dogs, Chicken, 7.5kg
vs Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg
Pooch & Mutt - Complete Senior Dry Dog Food (Grain Free), Chicken & Superfood Blend, 1.5kg
vs Pooch & Mutt - Slim & Slender Complete Dry Dog Food Grain Free (Regular Sized Kibble), for Weight Control and Weight Loss, Chicken and Sweet Potato, 10kg
Pooch & Mutt - Complete Senior Dry Dog Food (Grain Free), Chicken & Superfood Blend, 1.5kg
vs Skinner’s Field & Trial Light & Senior – Complete Dry Dog Food, Ideal for Older, Overweight or Less Active Dogs, 15kg
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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