Red Flags in Dog and Cat Food: What Every Pet Owner Should Know About

What we are most heavily marketed to or most often recommended is not always what’s best. Please take two minutes to read the label — those two minutes could make a real difference to your pet’s health!

Health problems in dogs and cats are becoming increasingly common, especially as pets get older. While many owners focus on supplements, medications, or treatments, one of the most important factors influencing long-term health is often overlooked: nutrition.

What your pet eats every day can either support their overall wellbeing or slowly contribute to inflammation, digestive issues, weight gain, allergies, poor coat quality, low energy, and additional stress on vital organs.

This becomes even more important for pets already suffering from conditions such as kidney disease, urinary problems, digestive sensitivities, obesity, diabetes, allergies, or chronic inflammation.

The challenge is that many commercial pet foods appear healthy on the packaging while containing poor-quality ingredients, excessive fillers, artificial additives, and low-grade protein sources.

Learning how to properly read a pet food label can help you make far better decisions for your dog or cat and avoid ingredients that may negatively affect their health over time.

Why Food Quality Matters So Much

Food affects almost every system in the body:

• Digestion, Immune function, Skin and coat health, Muscle maintenance, Energy levels, Weight control, Kidney and urinary health,Inflammation levels.

Poor-quality nutrition forces the body to work harder.

For pets already dealing with health conditions, low-grade ingredients can worsen symptoms and place additional stress on organs such as the kidneys, bladder, liver, digestive system, and pancreas.

Low-Quality Protein Sources

Protein itself is not bad. In fact, protein is essential for dogs and cats.

The real issue is protein quality.

Many commercial foods use vague ingredient descriptions such as:

• Animal derivatives, meat by-products, meat meal, animal proteins.

When labels fail to clearly identify the animal source, there is usually a reason.

These ingredients may include low-value leftovers such as:

• Connective tissue

• Feathers

• Beaks

• Bones

• Slaughterhouse waste products

Low-grade proteins are harder to digest and often produce more metabolic waste, forcing the body to work harder to process them.

This can become particularly problematic for pets already suffering from health conditions.

High-quality brands are transparent and clearly state ingredients such as:

• Fresh chicken

• Turkey

• Salmon

• Lamb

• Duck

Plant-Based Protein Is An Amazing Option

One important misconception in pet nutrition is that all non-meat proteins are automatically poor quality.

This is not true.

Some high-quality plant-based or alternative protein formulas can be excellent when properly formulated and nutritionally balanced. READ MORE HERE

Good plant-based diets may include ingredients such as:

• Pea protein

• Lentils

• Chickpeas

• Potato protein

• Algae-based nutrients

• Functional vegetables

The key difference is transparency, digestibility, amino acid balance, and overall formulation quality.

Poor-quality foods often use cheap vegetable proteins simply to inflate protein percentages artificially. However, well-designed plant-based formulas created by reputable brands can provide excellent nutrition for many pets.

This can be particularly useful for:

• Pets with certain food intolerances and chronic diseases

• Allergy management

• Sensitive digestion

• Owners seeking alternative protein options

Extremely Low Protein Diets Without Medical Reason

Another common misconception is that less protein automatically means healthier food.

This is not always true.

Excessively low protein diets may contribute to:

• Muscle loss

• Weakness

• Poor recovery

• Low energy

• Reduced immune support

For pets with kidney disease, the focus should usually be:

• Better quality protein, controlled phosphorus, higher digestibility, balanced nutrition

Not simply severe protein restriction.

Cereals and Fillers as Main Ingredients

One of the biggest red flags is seeing cereals listed at the top of the ingredient list.

Examples include:

• Wheat

• Corn

• Generic cereals

• Maize

• Rice by-products

These ingredients are often used as cheap fillers to bulk up kibble while reducing manufacturing costs.

Although some grains can be perfectly acceptable in balanced diets, excessive filler content provides limited nutritional value and may contribute to:

• Weight gain

• Digestive issues

• Chronic inflammation

• Blood sugar instability

• Food sensitivities

For pets with kidney or urinary disease, excessive low-quality fillers may also negatively affect metabolic balance and overall health.

Excessive Carbohydrate Content

Some dry pet foods contain extremely high carbohydrate levels, sometimes over 50%.

This is far higher than biologically appropriate for many pets, especially cats.

Excess carbohydrates may contribute to:

• Obesity

• Diabetes risk

• Reduced muscle maintenance

• Increased inflammation

• Poor metabolic health

This becomes even more problematic in pets already suffering from chronic illness.

Artificial Colours and Chemical Preservatives

Artificial colours are added purely to appeal to humans. Pets do not care what colour their kibble is.

Ingredients worth avoiding include:

• BHA

• BHT

• Ethoxyquin

• Artificial dyes

• Tartrazine

Some synthetic preservatives have raised concerns regarding oxidative stress and long-term toxicity.

Pets with sensitivities or chronic disease often benefit from cleaner ingredient lists with fewer unnecessary additives.

Gluten as a Cheap Protein Source

Some manufacturers artificially increase protein percentages using vegetable glutens such as:

• Corn gluten

• Wheat gluten

This allows brands to market foods as “high protein” while relying on cheaper ingredients instead of quality nutrition.

Gluten-heavy formulas may contribute to:

• Digestive upset

• Food sensitivities

• Allergic reactions

• Lower protein quality

Excessive Salt Content

Salt is sometimes added to improve flavour and palatability, but excessive sodium may place unnecessary strain on the body.

This can be especially problematic for pets suffering from:

• Kidney disease

• Heart conditions

• Hypertension

• Chronic urinary problems

Too much sodium may disrupt hydration balance and increase renal workload over time.

Hidden Sugars and Flavour Enhancers

Some foods and treats contain:

• Syrups, molasses, added sugars, artificial flavour enhancers.

These ingredients provide little nutritional value and may contribute to inflammation, obesity, and poor long-term health.

Example of a Poor Quality Dog Food

Composition

• Cereals

• Chicken (6%)

• Meat and animal derivatives

• Vegetable proteins

• Corn gluten

• Animal fat

• Salt

• Artificial flavourings

• Colourants

Analytical Components

• Protein: 18%

• Fat: 8%

• Ash: 11%

• Fibre: 5%

Why This Food Is Poor Quality

• Only 6% chicken, which is too low to be considered a meaningful meat source

• Vague ingredients like “meat and animal derivatives” do not clearly identify the protein quality

• High amount of fillers and low-value cereals

• Artificial additives and colourants with no nutritional benefit

• High ash content may suggest poorer quality raw ingredients

• Corn gluten and vegetable proteins may artificially increase protein percentages without providing the same biological value as quality animal protein

For pets with kidney, urinary, digestive, or inflammatory conditions, this type of food may place additional stress on the body over time.

In general, the simpler and clearer the label is, the easier it is to trust the quality of the food.

One Important Question Every Owner Should Ask

If a company refuses to clearly explain what is inside their food, why should you trust it with your pet’s health?

Transparency matters.

Better Nutrition Starts With Better Choices

At Indar Pet, we focus on high-quality nutrition designed to support overall long-term health, including kidney, urinary, digestive, and sensitive care.

All products are carefully selected based on: Ingredient quality, analytical composition, digestibility, functional nutritional support, overall health benefits.

Visit Indar Pet today and discover better nutrition for your dog or cat.

Learn more about how to read pet food labels in the following blog (Renal Version)