Hill's Prescription Diet L/d Feline (Dry) Review

Hill's Prescription Diet Dry Cat Food Review

Quick Analysis



Potential Allergens: soy and eggs

Est. Calories: 405 cal/100g

Price: n/a

Overall, Hill's Prescription Diet L/d Feline (Dry) is a significantly below average cat food, earning 3 out of a possible 10 paws based on its nutritional analysis and ingredient list.

Ingredient Analysis

When evaluating a cat food, the first five ingredients can tell you a lot about the quality of a product as they make up the bulk of the product. Ideally, you're looking for quality protein sources with a minimum of cheap starches, fillers or by-products. Continuing down the ingredient list, look for ingredients that resemble real food with a minimal number of unpronounceable chemicals - the same as you would for human food.

Hill's Prescription Diet L/d Feline (Dry) includes the following:

Quality Ingredients


Questionable Ingredients

  • brewers rice
  • chicken by-product meal
  • soybean meal
  • soy fiber
  • soybean oil

Potential Allergens

  • soybean meal
  • soy fiber
  • egg product
  • soybean oil

Note - a bolded ingredient in the above tables indicates it is one of the first five ingredients listed by the product manufacturer.

In this case, Hill's Prescription Diet L/d Feline (Dry) includes chicken by-product meal. By-products are typically considered an inferior, lesser quality ingredient in cat food.

Additionally, Hill's Prescription Diet L/d Feline (Dry) also contains as top ingredients brewers rice and soybean meal. These types of ingredients are typically used as bulk-adding fillers and are not required in your cat's diet. However, they are sometimes used to help maintain the kibble shape in dry foods.

Allergen alert: This product contains soybean meal, soy fiber, soybean oil and egg product which may be problematic for cats who suffer from soy or eggs food allergies.

Nutritional Analysis*

Compared to the other 2718 cat foods in our database, Hill's Prescription Diet L/d Feline (Dry) has:

  • significantly less protein than average
  • significantly more carbohydrates than average
  • more fat than average
  • significantly less fiber than average
  • significantly less moisture than an equivalent wet food
In general, cats have been shown to do better with a higher protein, medium fat, lower carb diet with sufficient moisture. However, specialty diets as recommended by your veterinarian may prioritize a different nutritional breakdown.

Calorie Breakdown

Using the calculations provided by the AAFCO, Hill's Prescription Diet L/d Feline (Dry) has approximately 405 calories per 100g (115 calories/ounce), which is considerably more calories compared to the average of the other dry cat foods in the CatFoodDB.

All the product information on this page is based on data collected from the manufacturer's product website as retrieved on July 3, 2017.

The authoritative source for ingredient lists and nutritional analysis for any pet food is always the pet food manufacturer.


Ingredients as published by the cat food manufacturer:

Brewers Rice, Chicken by-Product Meal, Pork Fat, Soybean Meal, Pasta, Pork Protein Isolate, Soy Fiber, Egg Product, Fish Meal, Chicken Liver Flavor, Lactic Acid, Soybean Oil, Choline Chloride, Potassium Chloride, Powdered Cellulose, Taurine, DL-Methionine, Calcium Sulfate, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement, Menadione Sodium Bisulfite Complex (source of Vitamin K)), L-Carnitine, minerals (Zinc Oxide, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Arginine, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene

Guaranteed Analysis

Nutritional information as published by the cat food manufacturer.*

Protein: (min)
Fat: (min)
Fiber: (max)
Carbs: (est)
Ash: (est)
Moisture: (max)

Dry Matter Analysis

The manufacturer's published guaranteed analysis values normalized for moisture content.

Protein: (min)
Fat: (min)
Fiber: (max)
Carbs: (est)
Ash: (est)
Calories: (est)

*Note that some nutritional percentages reported are only estimated values, and are indicated as such as (est). Each cat food manufacturer is required by law to publish a Guaranteed Analysis, which defines each product's maximum values of fiber, moisture and ash in addition to the minimum values of protein and fat contained within. Exact nutritional percentages are not available and hence all calculated values (including carbohydrate percentages and calorie amounts) are determined using these minimum and maximum published values and therefore may differ from actual values.

Although a high score may be indicative of a higher-quality product it is not a guarantee. Similarly, a low score may or may not indicate an inferior product. The best food for your cat is the one that meets their individual needs.

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