Naturediet Feel Good Senior-Lite vs IAMS Senior Small/Medium Chicken

Q: Is Naturediet Feel Good Senior-Lite worth the price compared to IAMS Senior Small/Medium Chicken?

Naturediet Feel Good Senior-Lite scores 76.0/100 for value, while IAMS Senior Small/Medium Chicken scores 76.0/100. Both offer comparable value for money.

Q: Which senior dog food brands use named meat sources vs 'derivatives'?

Every product in our top 10 senior dog foods lists named meat sources — chicken, turkey, or both — and zero by-products or derivatives. The highest-scoring product, Naturediet Feel Good Wet (82/100, ingredient quality 83), uses chicken and turkey as its primary proteins. Pooch & Mutt's three entries (scoring 77-78 overall) all use named chicken. Even at position five, Skinner's Field & Trial Light & Senior (74/100) specifies chicken. The gap between best and worst ingredient quality across all 20 products we scored is 18 points (83 for Naturediet down to 65 for IAMS). That spread tracks closely with how specific brands are about their protein sources. 'Meat and animal derivatives' is a legal catch-all that lets manufacturers swap between protein sources batch to batch. Named meats — 'chicken 26%' or 'turkey 30%' — lock the manufacturer into a consistent recipe. For senior dogs with sensitive digestion, that consistency matters. Check the first three ingredients on the label: if you see a specific animal name with a percentage, you know what your dog is eating.

Q: Does senior dog food need to be grain-free?

No. Our highest-scoring senior dog food — Naturediet Feel Good Wet at 82/100 — is not grain-free. It still beats every grain-free option in the category. Among the top five, the results are split: Pooch & Mutt's three products (77-78 overall) are all grain-free, while Naturediet and Skinner's Field & Trial are not. Ingredient quality scores tell the same story. Naturediet leads at 83 despite containing grains. Pooch & Mutt's grain-free formulas score 78-81 on ingredient quality — strong, but not top. Skinner's is gluten-free (not grain-free) and scores 70. What separates good from mediocre senior dog food is named meat content, absence of by-products, and overall formulation quality — not whether grains are present. 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, which are real but uncommon. Unless your vet has identified a grain sensitivity, choosing based on ingredient quality scores gives you a better predictor of food quality than the grain-free label alone.

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Naturediet Feel Good Senior-Lite and IAMS Senior Small/Medium Chicken.

Last verified: 01 Mar 2026 · Based on 21 reviews

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Our Verdict: Naturediet Feel Good Senior-Lite or IAMS Senior Small/Medium Chicken?

— AIScored Editorial Team

82.0

Score Summary

Naturediet Feel Good Senior-Lite scores 82.0/100 vs IAMS Senior Small/Medium Chicken at 71.0/100. Naturediet Feel Good Senior-Lite wins on ingredient quality, nutritional value, transparency.

Naturediet Feel Good Senior-Lite vs IAMS Senior Small/Medium Chicken: What Does the Data Say?

Naturediet Feel Good Senior-Lite and IAMS Senior Small Medium are fundamentally different products in form and philosophy. Naturediet is a wet food — 390g trays, 18-pack at £22.49 — built around named lean meats, chicken and turkey, with a reduced-fat formula designed specifically for senior dogs who are less active or carrying extra weight. It scores 82/100 overall, with ingredient quality and effectiveness both at 83. IAMS, by contrast, is a 3kg dry kibble at £10.50, also naming chicken as its lead protein, and its standout addition is a DentalCare system aimed at reducing tartar. It scores considerably lower at 71/100, with both effectiveness and ingredient quality rated 65.

If your dog is a senior with a sensitive stomach, a tendency to gain weight, or simply struggles to chew dry food, Naturediet is the more considered option. The wet format is gentler, more palatable for elderly dogs who've gone off their food, and the lower-fat recipe suits dogs who've slowed down with age. The cost per day works out higher, but you're paying for a more targeted, higher-quality formula. IAMS makes sense for owners of small or medium breeds who want a reliable, affordable daily feed — particularly if dental health is a concern. At £10.50 for 3kg, it's far cheaper to run long-term and works well across multi-dog households.

On practicalities: Naturediet has reports of a strong smell on opening, which can put some owners off even if the dogs are unbothered. IAMS is wheat-free in formulation but made in a facility that handles wheat — worth knowing if your dog has a confirmed allergy rather than just a sensitivity.

How Do the Scores Compare?

Naturediet - Feel Good Wet ...

IAMS Senior Small Medium Co...

	Naturediet - Feel Good Wet ... Naturedi	IAMS Senior Small Medium Co... IAM
Overall Score	82.0	71.0
Ingredient Quality	83.0/100 Best	65.0/100
Nutritional Value	79.0/100 Best	68.0/100
Value for Money	76.0/100 Best	76.0/100 Best
Transparency	78.0/100 Best	62.0/100
Palatability	91.0/100 Best	83.0/100
Best Price	£28.98 £22.09 Amazon UK → -24% deal	£10.50 Amazon UK → Cheapest
Form
Dose
Third-Party Tested	✗ No	✗ No
Reviews Analysed	9	12

Naturediet - Feel Good Wet Dog F...

Pros

✓Named lean meats (chicken and turkey) as primary protein sources — no generic meat derivatives or by-products
✓Excellent palatability reported across reviews, including by senior dogs with sensitive stomachs
✓Reduced fat formula well-suited to less active or overweight senior dogs
✓Simple, transparent ingredient list with no artificial colours, flavours, or preservatives

Cons

✗Some owners report a strong, unpleasant smell upon opening — likely from fish variants but noted on chicken/turkey too
✗Exact meat inclusion percentages are not prominently disclosed, limiting full nutritional transparency
✗Carbohydrate sources (rice and potatoes) are relatively high for a carnivore-optimised senior diet
✗Pack of 18 x 390g may not suit owners who prefer larger single-unit packaging

Best For

Senior dogs aged 7+ years Overweight or less active dogs needing a lower-fat diet Dogs with sensitive stomachs or history of digestive upset Fussy eaters who reject heavily processed wet foods Owners seeking natural, additive-free complete wet food

Amazon UK -24% £28.98 £22.09

View full review →

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

Small and medium breed senior dogs (7+ years) Dogs prone to tartar and dental issues Multi-dog households seeking consistent, affordable senior nutrition Owners transitioning fussy eaters to a senior formula

Amazon UK £10.50

View full review →

Score Breakdown: Naturediet Feel Good Senior-Lite vs IAMS Senior Small/Medium Chicken

Naturediet Feel Good Senior-Lite Winner 82.0/100

Naturediet Senior-Lite is a complete wet food made with freshly prepared chicken, turkey, rice, and potatoes — all named, traceable ingredients with no by-products, meat meals, or artificial additives.

Ingredient Quality

Naturediet - Fee..

83.0/100

IAMS Senior Smal..

65.0/100

Nutritional Value

Naturediet - Fee..

79.0/100

IAMS Senior Smal..

68.0/100

Value for Money

Naturediet - Fee..

76.0/100

IAMS Senior Smal..

76.0/100

Transparency

Naturediet - Fee..

78.0/100

IAMS Senior Smal..

62.0/100

Palatability

Naturediet - Fee..

91.0/100

IAMS Senior Smal..

83.0/100

What are the key differences?

Naturediet Feel Good Senior-Lite is best for: Senior dogs aged 7+ years, Overweight or less active dogs needing a lower-fat diet

IAMS Senior Small/Medium Chicken is best for: Small and medium breed senior dogs (7+ years), Dogs prone to tartar and dental issues

Frequently Asked Questions

Which is better, Naturediet Feel Good Senior-Lite or IAMS Senior Small/Medium Chicken? ▼

Naturediet Feel Good Senior-Lite wins with an 82 vs 71 score, offering superior ingredient quality and a reduced-fat formula better suited to senior dogs. IAMS suits budget-conscious owners of small breeds with dental concerns, costing less than half the price per pack. Naturediet Feel Good Senior-Lite scores 82.0/100 overall while IAMS Senior Small/Medium Chicken scores 71.0/100. Naturediet Feel Good Senior-Lite comes out ahead, scoring higher on effectiveness (0 vs 0). Naturediet Feel Good Senior-Lite is best suited for Senior dogs aged 7+ years and Overweight or less active dogs needing a lower-fat diet. IAMS Senior Small/Medium Chicken is better for Small and medium breed senior dogs (7+ years) and Dogs prone to tartar and dental issues.

Is Naturediet Feel Good Senior-Lite worth the price compared to IAMS Senior Small/Medium Chicken? ▼

Naturediet Feel Good Senior-Lite costs £22.09 while IAMS Senior Small/Medium Chicken is £10.50. For value, Naturediet Feel Good Senior-Lite scores 76.0/100 vs IAMS Senior Small/Medium Chicken's 76.0/100. Both offer similar value for money.

Which has fewer side effects? ▼

Naturediet Feel Good Senior-Lite scores 0/100 for side effects (higher means fewer reported issues) while IAMS Senior Small/Medium Chicken scores 0/100. Both have similar side effect profiles based on user reviews. Always consult a healthcare professional before starting any supplement.