Decoding Labels: What “By-Products” Really Mean for Your Pet

Walking down the pet food aisle can be dizzying, with bags and cans covered in information that often feels like a secret code. As pet parents, we believe you deserve total pet food ingredient transparency so you can feel confident and empowered about what goes into your furry family member’s bowl. To help clear the air, we want to decode one of the most debated and misunderstood terms in the entire industry: “by-products”.
At Nature’s Pet Market, we believe that education is the foundation of a healthy life for your pet. We are passionate advocates for animal welfare, and that starts with helping you understand exactly what is going into your pet’s bowl. In our experience, when pet owners have the right facts, they feel empowered to make nutritional choices that support long-term health and vitality without feeling overwhelmed by corporate jargon.
What are by-products in pet food?
In the context of pet food ingredient transparency, by-products are secondary products produced alongside the principal product, which is typically meat intended for human consumption. While this can include nutrient-dense organ meats like liver, heart, and kidneys, it may also include less desirable leftovers, such as necks, feet, and intestines, depending on the manufacturer’s quality and processing standards.
The Reality of Pet Food Ingredient Transparency
The term “by-product” is a broad umbrella used by the Association of American Feed Control Officials (AAFCO). While the word itself sounds industrial, it is important to look deeper into the “why” and “how” of these ingredients. Achieving true pet food ingredient transparency means knowing not just what the ingredient is called, but where it came from and how it was handled.
Our team of Certified Nutritional Specialists has found that many large-scale commercial pet foods use by-products as a cost-saving measure. Because these ingredients are the “leftovers” from the human food chain, they are significantly cheaper than whole muscle meats. However, the quality of these by-products can vary wildly. In lower-quality brands, by-products may be rendered—a process that involves high-heat cooking, which can destroy sensitive nutrients and enzymes, leaving behind a protein source that is difficult for your pet to digest.
The Difference Between Named and Unnamed By-Products
When evaluating a label for pet food ingredient transparency, the specific wording matters immensely. Our team recommends looking for named ingredients rather than generic ones. Here is how to spot the difference:
- Generic/Unnamed: Terms like “meat by-products” or “poultry by-products” are red flags. This lacks transparency because the source animal could be anything.
- Named: Terms like “chicken by-products” or “beef by-products” are slightly better because you at least know the species, though the exact parts used remain a mystery.
- Specific Organs: The gold standard for transparency is seeing specific organs listed, such as “beef liver,” “chicken heart,” or “pork kidney.”
Why Biologically Appropriate Nutrition Matters
At Nature’s Pet Market, we focus on biologically appropriate nutrition. This means looking at what dogs and cats are designed to eat as hunters and scavengers. In the wild, a wolf or a wildcat wouldn’t just eat the “filet mignon” of their prey; they would consume the organs, which are packed with essential vitamins and minerals like Taurine, Vitamin A, and B vitamins.
However, there is a major difference between a fresh, raw organ and a rendered by-product meal. This is why we are such strong advocates for raw and fresh food diets. By choosing brands that prioritize pet food ingredient transparency, you ensure your pet is getting those vital nutrients from high-quality, recognizable sources rather than processed waste products.
The Cost of Quality
We are often asked why higher-quality food costs more than the bags found at big-box retailers. We are always transparent about this: quality ingredients and rigorous pet food ingredient transparency come with a higher price tag. When a brand uses whole meats and specific organs instead of generic by-products, the sourcing costs are higher. However, we believe this is an investment in your pet’s long-term health, often leading to fewer vet visits and a more vibrant life for your companion.
How to Audit Your Pet’s Food Label
We invite you to take a look at the bag currently in your pantry. If you feel unsure about what you see, don’t worry—we are here to support you, not judge you. Our goal is to provide guidance so you can make the best choice for your unique situation. Here are three things to look for to ensure pet food ingredient transparency:
- The First Three Ingredients: These should always be named animal proteins (like “deboned chicken” or “turkey meal”), not by-products or fillers like corn and soy.
- Absence of “Digest”: Ingredients like “animal digest” are highly processed flavor enhancers that offer very little nutritional value and zero transparency.
- Sourcing Information: Does the brand tell you where its meat comes from? Brands committed to transparency will often share information about their farm partners and small-batch processing.
Visit Us in Medford or Ashland
Understanding the nuances of pet food ingredient transparency can be a journey. If you find yourself overwhelmed by the “by-product” debate, we invite you to stop by our Medford or Ashland stores. Our Certified Nutritional Specialists are always available to chat, look at your current food labels with you, and help you find a fresh or raw food option that fits your budget and your pet’s needs.
We are proud to offer Southern Oregon’s largest selection of raw pet food, and we are committed to being a community resource for every pet owner. Whether you are ready to transition to a fully raw diet or just want to add some fresh toppers to your pet’s bowl, we are here to provide the objective, factual guidance you deserve.
Frequently Asked Questions
Are by-products always bad for dogs and cats?
Not necessarily, but they lack transparency. While organs are “by-products” and are highly nutritious, the legal definition of “by-products” allows for low-quality ingredients like feet and feathers. True pet food ingredient transparency requires knowing exactly which parts are used.
What is the difference between meat meal and by-products?
Meat meal is generally rendered and dried protein from animal tissues, while by-products include the “non-meat” parts of the animal. Both can vary in quality depending on whether the source animal is named (e.g., “lamb meal” vs. “meat meal”).
How can I tell if a brand has good ingredient transparency?
Look for brands that avoid generic terms, list specific animal species, and provide information about their sourcing and manufacturing processes on their website or packaging.
Posted Under: Nutrition