Bean Flour
Last updated: March 15, 2026
In This Article
Quick Summary
Bean Flour Bean flour is ground dried beans (various types) used as a grain-free protein and carbohydrate source in pet foods.
What Is Bean Flour?
Bean flour is ground dried beans (various types) used as a grain-free protein and carbohydrate source in pet foods.
Compare to Similar Ingredients
- vs. chickpea flour: Bean flour is a generic term for ground legumes (could be navy beans, black beans, etc.), while chickpea flour is specifically from garbanzo beans. Both boost plant protein.
Why Manufacturers Add Bean Flour to Dog Food
Bean flour is a grain-free alternative to wheat flour used primarily as a binder and carbohydrate source — it contributes plant protein and fiber while keeping formulas gluten-free, though the protein quality is significantly lower than animal-sourced ingredients.
- Grain-free alternative to wheat flour
- Provides plant protein
- Gluten-free binding agent
- Adds fiber and nutrients
- Cost-effective grain-free option
Bean Flour Nutritional Profile
Macronutrients (varies by bean type)
- Protein: 20-25% (plant-based, incomplete amino acid profile)
- Fat: 1-3%
- Moisture: 10-12% (flour form)
- Carbohydrates: ~60% (includes starch and fiber)
Key Micronutrients
- Fiber: Moderate to high (soluble and insoluble)
- Iron: Good source (non-heme, lower bioavailability)
- Folate: Present
- Note: Legume-based protein; may contribute to DCM risk if primary protein source (under investigation)
Bean Flour Quality Considerations
When evaluating bean flour in dog products, it's important to understand protein density, amino acid profile, digestibility, and sourcing quality. Bean flour functions as both protein and carbohydrate, but its incomplete amino acid profile means it acts more like a carbohydrate extender than a protein substitute — the lysine and methionine gaps need to be covered by animal protein elsewhere in the formula.
Bean flour can be made from various beans (navy, pinto, black, etc.) or a mixture. It provides moderate plant protein and fiber along with some micronutrients. The quality varies depending on the bean source. Like all legume flours, it's more nutritious than grain flours but contains anti-nutrients and incomplete protein. The vague name 'bean flour' without specifying the bean type is less transparent than named bean flours.
Finding Bean Flour on Pet Food Labels
Bean flour without species specification could be navy, pinto, garbanzo, or other legumes — each has a different amino acid and fiber profile. Species-level specificity ('chickpea flour,' 'navy bean flour') is a better transparency signal than the generic 'bean flour' term.:
What to Look For
- Look for 'Bean Flour' (generic) - positions vary but often 5-12 in grain-free formulas
- Prefer specific bean types over generic 'bean flour': chickpea flour, lentil flour, navy bean flour are more transparent
- Check for legume stacking: bean flour + peas + lentils + chickpeas in top ingredients signals plant protein overuse
- Ensure animal proteins (chicken, fish, beef meals) appear multiple times before bean flour
- Guaranteed analysis should show 25-35% protein if animal proteins are truly primary
Alternative Names
This ingredient may also appear as:
- Legume flour (broader category)
- Pulse flour (technical term for legume flours)
- Specific types: chickpea flour, lentil flour, pea flour, navy bean flour, black bean flour
- Garbanzo bean flour (chickpeas)
Red Flags
- Generic 'bean flour' without species specification (transparency issue)
- Appears in top 3 ingredients before sufficient animal protein
- Multiple legume ingredients stacked: bean flour + peas + pea protein + lentils (plant protein overload)
- Used in grain-free formula with limited animal protein (potential DCM concern)
- No indication of bean type or processing method
Green Flags
- Specific bean type identified (chickpea flour, lentil flour vs generic bean flour)
- Appears after 2-3 named animal protein sources
- Part of diverse carbohydrate base (sweet potato + bean flour + oats) rather than dominant
- Formula includes taurine and L-carnitine supplementation (mitigates potential DCM concerns)
- Organic certification specified
Typical Position: Bean flour typically appears in positions 5-10 in grain-free formulas, after animal proteins and fats but before supplemental ingredients. Earlier positioning (1-4) signals overreliance on plant proteins.
Bean flour is an acceptable grain-free ingredient, though we prefer when manufacturers specify which beans (e.g., 'chickpea flour' vs. generic 'bean flour'). It's better than corn or wheat flour but shouldn't be a primary protein contributor. We appreciate its use in grain-free formulas as long as animal proteins remain primary. The lack of specificity (which beans?) is slightly concerning but not a deal-breaker.
Frequently Asked Questions
Where should bean flour appear on the ingredient list?
Bean flour typically appears in positions 5-10 in grain-free formulas, after named animal proteins and fats. If bean flour appears in positions 1-4 before adequate meat sources, the food relies too heavily on plant protein. Watch for legume stacking—bean flour plus peas plus lentils plus chickpeas in the top ingredients signals excessive plant protein, which has been investigated for potential links to dilated cardiomyopathy (DCM) in dogs.
Is bean flour necessary in dog food?
No, dogs don't need bean flour. It's primarily used in grain-free formulas as a carbohydrate and protein source to replace grains. While beans provide fiber and some plant protein, dogs require animal-based protein for optimal amino acid profiles. Bean flour is a functional ingredient for creating grain-free kibble texture, not a nutritional necessity.
How is bean flour processed for dog food?
Bean flour is made by drying beans and grinding them into powder. The generic term 'bean flour' without specifying the type (navy, pinto, black beans) is a transparency concern—premium brands specify which beans are used. Proper processing reduces antinutrients like lectins and phytates that can interfere with nutrient absorption, but even processed bean flour contains some antinutritional factors.
Related Reading
Learn more: Fillers in Dog Supplements: What to Avoid · Protein for Dogs: Requirements, Quality & Best Sources
Analyze Your Dog's Food
Your dog eats this every day. Shouldn't you know exactly what else is in there?
Analyze the Full Ingredient List