Corn Grain

Nutrition per ~50 g · ¼ cup cooked

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 60.

What it feeds primary sources only

Systems

Pathways

Overview

Corn (Zea mays) originated in Mesoamerica and is now the world's most widely produced grain crop. As a staple carbohydrate source, corn grain delivers sustained energy through complex carbohydrates and supplies essential micronutrients including niacin (vitamin B3), magnesium, and phosphorus critical for metabolic function and bone health. The grain contains lutein and zeaxanthin, xanthophyll carotenoids concentrated in yellow corn varieties that accumulate in retinal tissue. While whole corn grain is high in carbohydrates, it provides polyphenols and phytosterols with anti-inflammatory properties. Corn's selenium content supports thyroid function and antioxidant defense. The polyunsaturated fat content (2.16g per 100g) includes omega-6 linoleic acid important for cell membrane integrity. Note that refined corn products lack fiber; whole corn or corn with germ/bran retained offers superior nutritional density. For longevity-focused nutrition, corn works best as part of a balanced diet rather than a dominant carbohydrate source, particularly when combined with protein and healthy fats to moderate glycemic impact.

Health benefits 5

Pairs with

• Pair with beans or legumes because complementary amino acid profiles create complete protein; lysine-rich beans compensate for corn's relative lysine limitation
• Combine with olive oil or avocado because fat-soluble carotenoids (lutein, zeaxanthin) require dietary fat for absorption and bioavailability
• Serve with tomatoes or red peppers because lycopene and vitamin C enhance overall antioxidant capacity and reduce postprandial glycemic response
• Mix with leafy greens because magnesium in corn works synergistically with folate and chlorophyll for cardiovascular and cognitive health

In the kitchen

• Choose whole corn kernels or corn with germ retained over refined cornmeal or degermed corn products to preserve fiber, magnesium, and phytochemical content
• Cook corn al dente rather than extended boiling to minimize nutrient leaching into cooking water; steaming or roasting preserves carotenoids better
• Store dried corn in cool, dry conditions in airtight containers; whole kernels remain stable for 6-12 months, but ground products oxidize more rapidly
• Consume corn as part of mixed meals with protein and healthy fat to moderate blood glucose response and extend satiety
• Consider corn tortillas made from nixtamalized corn (treated with lime/calcium hydroxide) for enhanced bioavailability of niacin and calcium compared to non-nixtamalized products

When to eat it midday

Corn's moderate-to-high glycemic load is best consumed at midday with mixed meals containing protein and fat to stabilize glucose and provide sustained energy without evening blood sugar spikes

Breaks a fast

Best avoided

• fasting state (no glucose moderating nutrients)
• immediately pre workout (slow digestion relative to quick glucose needs)

Not suitable for fasting windows due to carbohydrate density. Optimal when combined with protein source (beans, fish, poultry) and healthy fat (nuts, olive oil) for balanced nutrient absorption.