Brewers Rice

Carbohydrate
Caution
Low nutritional value

Last updated: February 10, 2026

Table of Contents

Quick Summary

Brewers Rice Small fragments of rice kernels separated from whole grains during milling. Lower quality than whole rice.

Category
Carbohydrate
Common In
Dry food, treats, grain-free formulas
Also Known As
brewer's rice, broken rice
Watts Rating
Caution

What It Is

Brewers rice consists of small fragments and broken pieces of rice kernels separated from whole grains during milling. It's essentially rice byproduct—the leftover broken pieces after whole rice is polished. Brewers rice contains approximately 12% moisture, 75-80% carbohydrates (minimal fiber 0.5-1%), 7-8% protein (incomplete), and less than 1% fat. Nutritionally similar to white rice but lower quality—both are refined carbohydrates. Brewers rice has high glycemic index (75-85), slightly lower than white rice but still causing blood sugar spikes. It's the most economical rice ingredient—significantly cheaper than whole rice, brown rice, or white rice. Highly digestible but nutritionally sparse. Common in budget dog foods as inexpensive filler. Signals lower quality than whole grains.

Compare to Similar Ingredients

Why It's Used in Dog Products

Brewers rice appears in dog food primarily as inexpensive filler and economical carbohydrate source. It's highly digestible (85-90%), making it suitable for sensitive stomachs despite low nutritional value. Brewers rice is significantly cheaper than whole rice or brown rice—budget brands use it to reduce cost. It provides quick energy but minimal vitamins, minerals, or fiber. Brewers rice signals economy formulation prioritizing cost over nutrition. Acceptable in small amounts (positions 10-15); concerning as primary carbohydrate.

Nutritional Profile

Macronutrients

Key Micronutrients

Quality Considerations

Brewers rice signals budget formulation. It's the lowest-quality rice ingredient—byproduct of rice milling. In premium foods, whole grains (brown rice, oatmeal) replace brewers rice. Brewers rice in lower positions (10-15) as minor ingredient is acceptable filler. Brewers rice in top 5 ingredients signals carb-heavy, budget formula prioritizing cost over nutrition. Multiple rice forms (brewers rice + rice flour + rice bran) inflate rice content. Look for whole grains instead.

Red Flags

Green Flags

Quality Note

Lower quality than whole rice. Byproduct with less nutritional value.

Potential Concerns

Brewers rice is safe but nutritionally poor. Main concern: lack of nutrition—pure refined carbohydrates without vitamins, minerals, or fiber. High glycemic index (75-85) problematic for diabetic dogs or weight management. Long-term diets heavy in brewers rice without balancing nutrition could contribute to deficiencies (though complete dog food compensates with added vitamins/minerals). Brewers rice isn't harmful—just nutritionally empty filler. Better alternatives exist.

Contraindications

Life Stage Considerations: While safe for all life stages, puppies and active dogs benefit more from nutrient-dense whole grains.

Scientific Evidence

Brewers rice provides highly digestible carbohydrates with high glycemic index. Nutritionally sparse. Safe but not beneficial. Better alternatives available.

Evidence Level: Strong regarding digestibility and glycemic impact. Strong regarding lack of nutritional value.

Watts' Take

We avoid brewers rice. It's broken rice fragments—the leftovers from milling whole rice.

Frequently Asked Questions

Is brewers rice bad for dogs?

Brewers rice isn't harmful but signals lower quality. It's rice byproduct (broken fragments) providing refined carbohydrates without nutrition. Highly digestible (85-90%) and suitable for sensitive stomachs, but offers minimal vitamins, minerals, or fiber. High glycemic index (75-85) causes blood sugar spikes. In balanced dog food supplemented with vitamins/minerals, brewers rice won't harm your dog. However, brewers rice as primary carbohydrate (top 5 ingredients) signals budget formula prioritizing cost over nutrition. Better alternatives include brown rice, oatmeal, or sweet potatoes providing actual nutrients. Brewers rice is economical filler—not toxic, just nutritionally empty.

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