How the diets react
Diet Ratings
Cornmeal contains ~72g net carbs per 100g. Corn is a grain and starch; cornmeal is processed corn with virtually no fiber benefit. Completely incompatible with ketogenic diet.
Whole plant food derived from corn with no animal products or derivatives. Versatile grain product, fully vegan-compliant.
Cornmeal is a processed grain product derived from corn. It is explicitly excluded from paleo diets due to its grain origin, processing, and inflammatory potential. Universal consensus across paleo authorities.
Cornmeal can be a whole grain if minimally processed, but much commercial cornmeal is refined. When whole grain, it provides fiber and nutrients; when refined, it lacks these benefits. Context-dependent.
Some Mediterranean diet authorities accept polenta (cornmeal-based dish) as a traditional staple in Northern Italy and the Balkans, particularly when made with whole grain cornmeal and prepared with olive oil.
Plant-derived grain product. Processed corn violates carnivore exclusion of all plant foods and grains.
Corn is explicitly excluded from Whole30 as a grain. Cornmeal is a processed form of corn and not compliant.
Cornmeal is low in FODMAPs. Monash University confirms corn products are low-FODMAP with no significant fermentable carbohydrates.
Whole grain with some fiber and magnesium, but less nutrient-dense than other whole grains. Acceptable in moderation as part of varied whole grain intake.
Corn is high-glycemic (GI ~68-72) and explicitly listed by Dr. Sears as food to avoid in Zone protocol. High omega-6 content when processed. Provides poor satiety relative to carb load. No nutritional advantage over low-glycemic vegetables.
Whole cornmeal retains fiber and some nutrients, but corn's high omega-6 and low omega-3 content limit anti-inflammatory benefit. Refined cornmeal is worse. Acceptable in moderation as whole grain.
Mainstream nutrition treats whole cornmeal as acceptable whole grain. Anti-inflammatory protocols accept it in moderation but prefer grains with better omega-3 balance (oats, quinoa).
Moderate fiber (2.4g per 100g) and low protein (1.2g per 100g). Calorie-dense and doesn't support protein targets. Portion control critical. Less nutrient-dense than whole grains like oats or quinoa.
Controversy Index
Score range: 1–9/10. Higher controversy = more disagreement between diets.