
Star Pro
1937 – Star Pro Feline Formula (by Lone Star)
Summary
Star Pro 1937 Feline Formula by Lone Star is a dry cat food formulated to meet the nutritional needs of cats at all life stages, from kittens to adults.
The primary protein source is chicken by-product meal, providing essential amino acids to support muscle development and overall health.
Ground yellow corn, corn gluten meal, and ground whole wheat are used as carbohydrate sources, supplying energy for daily activities.
Preserved with mixed tocopherols, chicken fat contributes essential fatty acids for skin health and coat shine.
Fish oil is included to provide additional omega-3 fatty acids, supporting cognitive function and joint health.
Dried plain beet pulp adds fiber, promoting healthy digestion and aiding in stool quality.
The formula also includes vitamins A, D3, and E and taurine (0.12%) to support heart health, vision, and immune function.
Guaranteed analysis features 30% crude protein and 15% crude fat, offering balanced nutrition for all stages of feline development.
Pros:
High protein content: Contains 30% crude protein from poultry-based ingredients, supporting muscle maintenance and growth.
Complete nutritional profile: Formulated with taurine, essential vitamins, and minerals to support heart health, vision, and immune defense.
Digestive support: Includes beet pulp to promote healthy gut motility and maintain stool quality.
Suitability for all life stages: It is balanced for kittens and adult cats, making it a versatile choice for multi-cat households.
Cons:
Use of by-product meal: This method relies on chicken by-product meal, which may not match the quality of whole meat sources.
High grain content: Includes corn, wheat, and corn gluten meal, which may not be suitable for cats with grain sensitivities.
Moderate fiber content: It contains 3.5% crude fiber, which may not be sufficient for cats prone to hairballs or digestive issues.
Relatively low omega-3 content: While fish oil is present, omega-3 levels are not specified and may be lower than ideal for skin and joint support.
Nutrition
Ingredients
- Ground yellow corn
- Chicken by-product meal
- Corn gluten meal
- Chicken fat (preserved with mixed tocopherols)
- Soybean meal
- Ground whole wheat
- Dried plain beet pulp
- Natural chicken flavor
- Calcium carbonate
- salt
- and also:
Vitamins and Additives
Guaranteed Analysis
Comments
Guaranteed Analysis
Alternative Products
We compare key factors such as overall score, life stage, and category, along with core nutritional values like protein, fat, fiber, and metabolizable energy.
While not identical, these products fall within a defined range to offer nutritionally comparable options.

1937 – Star Pro Feline Formula (by Lone Star)
Product changes
- 4th Ingredient changed from Chicken fat (preserved with mixed tocopherols and ascorbyl palmitate) -> Chicken fat (preserved with mixed tocopherols)
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How the score is calculated?
The actual calculation of the score is based on sophisticated and advanced algorithm that takes into account multiple parameters.
To simplify the explanation, the calculation is based on three main criteria:
(1) Amount of protein (more is better)
(2) Amount of carbohydrates (less is better)
(3) Quality and source of ingredients.
Based on that 3 main criteria, 9 score calculation rules are used to compare the different foods.
One major assumption is that the closer an ingredient is to the top of the ingredient list, the greater its relative weight and contribution to the food.
In general, cat food is composed of protein, fats, carbohydrates, fibers, vitamins, and minerals.
Protein is the most important component in a cat's diet, and cats primarily get their protein from animal meat.
Fat is a primary source of energy and essential fatty acids.
Carbohydrates are controversial in a cat's diet, as cats are obligate carnivores and typically consume very few carbohydrates.
Fibers play an important role in digestion and food absorption, and vitamins and minerals are essential for different organism functions.
Dry matter values are used to compare the amount of nutrients in different cat foods. This means that moisture is excluded from the equation to provide a more accurate comparison.
Putting all of these and more into a formula results in a product score.
The maximum score a cat food can receive is 100. Points are added or removed based on the score calculation rules.
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