Chicken By-Product Meal
Also known as: poultry by-product meal
A rendered, dried powder made from parts of the chicken left over after human-food processing — necks, feet, undeveloped eggs, and viscera. Legally excludes feathers, heads, feet, and intestines (poultry by-product meal is looser).
What it actually is
Ground, cooked-down, dried protein concentrate made from the 'clean' non-muscle portions of slaughtered chickens as defined by AAFCO. It's roughly 60–65% protein by weight because most of the water and fat has been driven off.
Why it's used in dog food
It's an extremely cheap way to hit a protein percentage on a kibble label. Rendering also extends shelf life and improves the pellet structure of extruded kibble.
A bit of history
Rendering as an industry grew after World War II to prevent slaughter waste from going to landfill. By-product meals became standard in mid-tier kibble in the 1970s and remain the workhorse protein of value pet food.
Pros
- •Concentrated source of amino acids and minerals from organs, cartilage, and bone
- •Sustainable — uses the whole animal instead of landfilling it
- •Cost-effective way to raise the protein number on a label
Cons
- •Quality varies enormously between suppliers — no way for a consumer to tell a good batch from a bad one
- •Often high in ash (mineral residue from bone), which can affect calcium/phosphorus balance
- •Heavily processed at high heat, which damages some amino acids (taurine, lysine)
- •Species-appropriate scoring: significantly lower than fresh muscle meat
Safety notes
Legal in Canada, the US, and most of the EU. Not the same as '4D' (dead, dying, diseased, disabled) meat, which is banned from pet food but sometimes conflated in online commentary.
Sourcing & quality
Look for a named species ('chicken by-product meal' rather than the vague 'poultry by-product meal') and a country of origin. US and Canadian rendering is more tightly inspected than imported meals.
Commonly found in
Skip this if…
You're paying a premium price — a premium food shouldn't use by-product meal as its main protein.
The verdict
Not toxic and not garbage, but a big step down from named muscle meat. Acceptable in value kibble; questionable in anything sold as 'premium'.