Peas
Also known as: pea protein, pea flour, pea starch
A legume used in grain-free kibble to replace grain — and a central player in the FDA's ongoing DCM investigation.
What it actually is
The seed of the pea plant. On labels it appears as whole peas, pea protein (concentrated), pea flour, or pea starch — three or four separate entries stack up to a much larger inclusion than the label order suggests.
Why it's used in dog food
Grain-free kibble needs a binder to hold the pellet together. Peas fill that role cheaply and boost the protein number when pea protein isolate is added.
A bit of history
Peas exploded into pet food after 2010 when grain-free marketing took off. By 2018 the FDA opened an investigation into a link between grain-free diets high in peas/lentils and dilated cardiomyopathy (DCM) in dogs.
Pros
- •Provide plant protein, fibre, and some B vitamins
- •Gluten-free and grain-free
- •Low glycemic load
Cons
- •Central ingredient in the FDA's 2018–ongoing DCM investigation — hundreds of confirmed cases
- •Label splitting: 'peas, pea protein, pea flour, pea starch' often adds up to more than any meat
- •Contain lectins and phytates that reduce mineral absorption
- •Overrepresented in 'premium grain-free' formulas
Safety notes
The DCM link is not proven causation but the correlation is strong enough that most vet cardiologists now recommend avoiding pea-heavy grain-free kibble in Golden Retrievers, Dobermans, and other predisposed breeds.
Sourcing & quality
Whole peas as a minor ingredient are fine. Watch for label splitting — count all pea entries together.
Commonly found in
Skip this if…
Your breed has a DCM predisposition, or peas appear multiple times in the ingredient list.
The verdict
Fine in small amounts; problematic when they replace meat as the main ingredient. Read the label carefully.