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Nutri-Vet Milk Replacer Powder With Opti-Gut for Kittens Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement

Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement scores higher on KibbleLab, 8.6 to 8.0. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Nutri-Vet Milk Replacer Powder With Opti-Gut for Kittens and Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement compared

Nutrients:
As Fed
Nutri-Vet Milk Replacer Powder With Opti-Gut for Kittens
Nutri-Vet Milk Replacer Powder With Opti-Gut for Kittens

Verified Jul 19, 2026

Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement
Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement

Verified Jul 23, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science. No one can pay for a higher score.
8.0 / 10 8.6 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
30.00% 33.00%
Fat 40.00% 40.00%
Fiber 0.50% 0.50%
Calcium 9.00% 1.00%
Phosphorus 0.85% 0.90%
Taurine 0.30% 0.30%
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
5.00% 5.00%
Calories 1524 kcal/kg 5097 kcal/kg
Calorie density Low High
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Animal and Vegetable Fat (Preserved with BHA and BHT), Dried Whey Protein Concentrate, Dried Whey, Dicalcium Phosphate, L-Arginine, L-Lysine Monohydrochloride, Sodium Caseinate, Sodium Silico Aluminate, Lecithin, Taurine, Choline Chloride, Mono and Diglycerides of Edible Fats or Oils, Dried Bacillus Subtilis Fermentation Product, Hydrolyzed Yeast, Brewers Dried Yeast, Artificial Flavor, DL-Methionine, Magnesium Oxide, Ferrous Sulfate, Zinc Sulfate, Vitamin E Supplement, Copper Sulfate, Calcium Carbonate, Niacin Supplement, Dried Enterococcus Faecium Fermentation Product, Manganese Sulfate, Sodium Selenite, Vitamin A Acetate, Ascorbic Acid (Source of Vitamin C), Ethylenediamine Dihydriodide, Vitamin D3 Supplement, Cobalt Sulfate, Calcium Sulfate, Calcium Pantothenate, Thiamine Mononitrate, Riboflavin Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin B12 Supplement. Contains a source of live(viable) naturally occurring microorganisms Show full list
Animal Fat and Vegetable Fat with Mixed Tocopherols (preservatives), Rosemary Extract, Dried Whey Protein Concentrate, Dried Whey, Sodium Caseinate, Dried Bovine Colostrum, Dicalcium Phosphate, DL-Methionine, Lecithin, Calcium Carbonate, L-Arginine, L-Taurine, Choline Chloride, Potassium Chloride, Natural Flavor, Mono and Diglycerides of Edible Fats or Oils, Vitamin E Supplement, Magnesium Oxide, Ferrous Sulfate, Zinc Sulfate, Manganese Sulfate, Sodium Selenite, Copper Sulfate, Silicon Dioxide, Ethylenediamine Dihydriodie, Cobalt Sulfate, Dried Skimmed Milk, L-Lysine, Vitamin A Acetate, Ascorbic Acid (Source of Vitamin C), Vitamin D3 Supplement, Vitamin B12 Supplement, Riboflavin Supplement, d-Calcium Pantothenate, Niacinamide, Pyridoxine Hydrochloride, Thiamine Mononitrate, D-Biotin, Folic Acid. Show full list
Limited ingredient No No
Health focus Probiotic support, Skin coat health, Weight gain Immune support, Sensitive stomach
Format & suitability
Food type Supplement Supplement
Texture Powder Powder
Processing Not listed Not listed
Life stage Kitten Kitten, Adult, Senior
Breed size All Breed Sizes All Breed Sizes
AAFCO nutritional adequacy
Complete & balanced Whether the manufacturer's label claims the food meets AAFCO nutrient profiles for a life stage. Not an independent test.
Not indicated Not indicated
Life stages Not listed Not listed
Substantiation How adequacy was established. Feeding trials are the higher bar; formulation means the recipe is calculated to meet the profile.
Not listed Not listed
Maker standards
WSAVA guidelines The World Small Animal Veterinary Association publishes criteria for evaluating a manufacturer: qualified nutritionists on staff, feeding trials, and published research. It does not certify or endorse brands.
No No
PSC accredited The Pet Sustainability Coalition is a nonprofit that accredits pet companies on their environmental and social impact through third-party verification. It reflects sustainability practices, not food quality.
No No
Recalls & where to buy
Recalls on record KibbleLab began logging recalls in July 2026, so earlier recalls may not appear.
None None
Where to buy
Amazon
Amazon

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Shared ingredients

Both foods list these among their top ingredients, by label weight.

  • Animal Fat
  • Vegetable Fat
  • Whey Protein Concentrate
  • Whey
  • Dicalcium Phosphate
  • Sodium Caseinate

Not sure which is right for your pet?

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Common Questions

Which food scores higher on KibbleLab?

Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement scores higher, 8.6 to 8.0 out of 10. Scores reflect published veterinary science, and no one can pay for a higher score.

Do these two foods share ingredients?

Yes. They share these top ingredients: Animal Fat, Vegetable Fat, Whey Protein Concentrate, Whey, Dicalcium Phosphate, Sodium Caseinate.

See the full profiles: Nutri-Vet Milk Replacer Powder With Opti-Gut for Kittens and Under the Weather Pet Milk Replacer for Kittens with Colostrum Supplement .

KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.

This is a neutral, factual comparison, not a ranking or an endorsement of either product. A food's guaranteed analysis gives legal minimums and maximums for a few nutrients, not measured values. No one can pay for placement or a higher score.

Product details are compiled from public sources and may not reflect the latest formulation. Represent one of these brands? Request a correction. Anyone else can email us.