Corn Bran

Nutrition per ~30 g · ¼ cup

2.0 g net carbs after fiber.

Vitamins

Minerals & other

Bioactives estimated

Representative amounts for this food, not measured for this item. Real content varies widely by variety, ripeness and storage.

What drives the score weighted inputs

These are the scored components, not a sum: the published score also reflects normalisation across the catalog, so the parts above will not add to 72.

What it feeds primary sources only

Systems

Pathways

Overview

Corn bran is the nutrient-dense outer hull removed during corn processing, historically used as animal feed but increasingly recognized as a potent functional food for human consumption. Unlike whole corn, bran concentrates fiber and micronutrients while minimizing starch. Its exceptional fiber content (79g/100g) makes it one of the highest-fiber foods available, with a favorable phosphorus-to-magnesium ratio (72:64 mg) supporting mineral balance. The bran contains phenolic compounds and ferulic acid, plant polyphenols with antioxidant properties documented in cereal grain literature. Rich in insoluble fiber, corn bran promotes colonic health and prebiotic fermentation, supporting beneficial microbiota. The moderate protein content (8.36g) and minimal fat profile make it suitable for weight management protocols. Selenium content (16.5 mcg) contributes to antioxidant defense through glutathione peroxidase activity. Corn bran's glycemic impact is low due to fiber's effect on glucose absorption rate. Traditional use in various cuisines has expanded as research validates its role in cholesterol management and glycemic control, making it relevant for metabolic longevity strategies.

Health benefits 5

Pairs with

• Pair with vitamin C-rich foods (citrus, kiwi, bell pepper) to enhance non-heme iron absorption from the 2.79mg iron per 100g
• Combine with fermented foods (kefir, yogurt, sauerkraut) to synergize prebiotic fiber with probiotic organisms for enhanced microbiota diversity
• Mix with fat sources (olive oil, nuts, seeds) to improve absorption of fat-soluble phenolic compounds and enhance palatability
• Consume with legumes (lentils, beans) to create complete protein profile and enhance fiber viscosity for superior glycemic control

In the kitchen

• Start with 1-2 tablespoons daily and gradually increase to 3-4 tablespoons over 2 weeks to allow microbiota adaptation and minimize digestive distress
• Store in airtight containers in cool, dark conditions or refrigerate after opening to prevent oxidation of polyphenols and maintain fiber integrity
• Mix into oatmeal, smoothies, or yogurt rather than consuming dry to improve water absorption and reduce choking risk; ensure adequate fluid intake (8+ glasses daily)
• Select non-GMO, organically-sourced corn bran when possible to minimize pesticide residues and ensure ferulic acid preservation
• Consume with meals rather than on empty stomach to optimize nutrient absorption and minimize gastric irritation from concentrated fiber

When to eat it anytime

Corn bran's primary benefits derive from fiber's effects on digestion and microbiota, which operate across 24-hour cycles. Morning consumption supports satiety and stable glucose throughout the day; evening consumption supports colonic fermentation during sleep. No circadian-dependent mechanisms limit timing.

Breaks a fast

Best avoided

• Do not consume immediately before or during high intensity exercise (may cause GI distress)
• Avoid as sole meal component—always pair with protein and fat for complete macronutrient profile

High fiber content requires adequate hydration; fasting consumption risks GI discomfort without accompanying food or fluid. Best consumed as component of mixed meal.