Premium Stamina 24/18 Adult Dry Dog Food, 50-lb bag
Graded by The Sniff System
SPORTMiX Premium Stamina 24/18 Adult Dry Dog Food is a dry formula for adult dogs, with an unnamed meat meal as its first ingredient.
The formula is designed for adult maintenance, and while an AAFCO statement isn't published by the retailer, it's inferred to meet those nutritional standards. This is a basic requirement for dog food.
The primary protein is listed simply as 'meat meal,' which means its source isn't specified, and this type of ingredient often provides limited bioavailable amino acids. This contributes to a low protein quality score.
Good fit for adult dogs where budget is the primary concern. Less ideal if you prioritize specific, high-quality protein sources for your dog.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
The landmark 14-year Purina Lifespan Study on 48 Labrador Retrievers demonstrated that dogs fed 25% fewer calories lived a median of 1.8 years longer and delayed the onset of chronic diseases. Good fit for adult Labrador Retrievers and similar active sporting breeds navigating weight management. Caloric density is not declared, with crude fiber at 5.5% (above the catalog median, supports satiety). The 2014 AAHA Weight Management Guidelines define overweight as a Body Condition Score (BCS) of 6-7 on a 9-point scale. A score of 8 or 9 indicates obesity, representing 20-30% and >30% above ideal body weight, respectively (Brooks et al., 2014) .
Looking at this for adult Labrador Retrievers or Labrador Retrievers with weight management ? We are building dedicated pages for these combinations.
Auto-matched from this product's measurements (ingredients, life stage, calorie density) to a breed archetype. Not a substitute for vet input on your specific dog.
Research informing this analysis
MethodologyThe Sniff System grades this product against 3 cited studies relevant to its profile. Each link opens the original source.
- Brooks et al., 2014diagnostic · protocol · satiety· cited in 5 claims
- APOP, 2023prevalence
- Raffan et al., 2016genetics
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
At 42/100, this formula sits below where we look for everyday picks. The lift comes from AAFCO compliance, worth 4 points to the final number: AAFCO formulation inferred from declared adult maintenance. Verbatim statement not published by retailer. The ceiling on this score is 54, set because the primary protein source is unnamed (e.g., 'meat meal' or 'animal by-product meal') rather than a named species. The cap isn't the binding constraint here. Protein quality would also need to improve to reach the next band.
AAFCO formulation inferred from declared adult maintenance. Verbatim statement not published by retailer.
Low protein quality. meat meal delivers limited bioavailable amino acids.
- Lowest carb quality in SPORTMiX's lineup (8/16)
- Top quartile for DMB fat in grain-inclusive dry kibbles (20.0%)
- Bottom 10% for overall Sniff Score in grain-inclusive dry kibbles (42/100)
Computed against the rest of our catalog. Percentiles refresh on each catalog update.
Similar dog foods worth considering
Three lenses on products with formulation profiles similar to this one.

SPORTMiX Extreme Energy Adult Chicken Dry Dog Food, 40-lb bag
Scores 26 points higher with a similar formulation profile.

SPORTMiX High Protein Adult Dry Dog Food, 50-lb bag
$0.70/lb vs your seed's $1.17/lb (40% less) at a comparable score.
Surfaced from a vector similarity search across 3,491 scored dog foods. How this works.
Read why each ingredient is good or bad for dogs.
- 1protein animalmeat meal
Unnamed mammalian protein. No way to know what animal it came from. Avoid in favor of named meals.
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2grainwheat
Whole wheat. Fine for most dogs, though a portion are sensitive. Not a quality concern, just a fit-for-your-dog question.
Position 2: major carbohydrate source.
- 3grainyellow corn
Position 3: major carbohydrate source.
- 4fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 4: secondary fat. Often where marine oils sit when present alongside a primary land-animal fat.
- 5grainrice
Generic rice. Could be white or brown, the label doesn't say. Brown rice would be specified if it were.
Position 5: supporting grain. Smaller contribution to the carb deck.
- 6corn germ meal
Position 6: supporting grain. Smaller contribution to the carb deck.
- 7legumepeas
Cheap protein bulk. Fine in small amounts, but when peas stack with lentils and chickpeas in the top ingredients, it's the pattern the FDA flagged in its heart-disease investigation. See why →
Position 7. Moderate inclusion. Contributes carbohydrate and some plant protein.
- 8fatflaxseed
Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.
Position 8: trace fat. Below the level that materially shifts the fat profile.
- 9protein animalchicken by-product meal
Ground organs, bone, and tissue. Nutritionally dense, especially the liver and gizzard fractions. Named species ('chicken') is what matters. Generic 'poultry by-product meal' is the one to worry about. See why →
Position 9: supporting protein. Modest contribution to total protein weight.
- 10mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 11supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 12supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
- 13vitaminvitamin e supplement
Required nutrient and a natural antioxidant. Often pulls double duty as a preservative.
- 14vitaminniacin supplement
B vitamin (B3). Required in complete dog foods, added as a supplement to standardize the dose.
- 15vitamincalcium pantothenate
Same as d-calcium pantothenate. Vitamin B5 in standardized form.
- 16vitaminvitamin a supplement
Vitamin A in stable, standardized form. Required for vision, immune function, and growth.
- 17vitaminriboflavin supplement
B vitamin (B2). Required in complete dog foods. The standardized form ensures consistent dosing.
- 18vitaminthiamine mononitrate
B vitamin (B1). Essential for nervous system function. Cooked-in vitamin loss is why thiamine is always added back.
- 19vitaminpyridoxine hydrochloride
B vitamin (B6). Essential for protein metabolism. Standard inclusion in complete formulas.
- 20vitaminbiotin
B vitamin that supports skin and coat health. Required for AAFCO-complete formulas.
- 21vitaminvitamin b12 supplement
Essential for red blood cell formation and neurological function. Plant ingredients lack B12, so it has to be added.
- 22vitaminvitamin d3 supplement
The active form of vitamin D dogs need. Required for calcium absorption and bone health.
- 23vitaminfolic acid
B vitamin (B9), essential for cell function. Standard in complete dog foods.
21 of 23 ingredients have a curated note. Coverage grows over time.