Protein content
1.9 g of protein in 1 cup (30 g) of corn flakes, or 1.8 g for every 100 kcal it supplies.
Share of this food's calories that come from protein - it is more of an energy food than a protein food.
| Protein per 100 kcal | 1.8 g |
|---|---|
| Protein per 100 g | 6.4 g |
| Protein per serving | 1.9 g in 1 cup (30 g) |
| Calories from protein | 7% |
| Protein to fat | 4 g per 1 g fat |
| Rank in grains, per 100 kcal | 107th of 111 |
| Rank of all foods, per 100 g | 539th of 796 |
| Share of 50 g Daily Value | 4% per serving |
| Protein quality | Incomplete protein |
One 1 cup, 1.9 g protein.
Every 100 kcal of corn flakes brings 1.8 g of protein. On that measure it ranks 107th of the 111 grains in this database and 722nd of all 796 foods on the site. Measured by weight instead, its 6.4 g per 100 g ranks 73rd in its group.
Only about 7% of the calories in corn flakes come from protein, so it is more of an energy food than a protein food. It is worth eating for other reasons; the protein it adds to a day is incidental.
Weight for weight, corn flakes has 4 g of protein for each gram of fat (6.4 g against 1.6 g per 100 g).
Set against corn tortilla, another grain entry in the database, a serving carries about 0.5 g more protein (corn tortilla has 1.4 g per 1 tortilla).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving quoted here is measured by volume at 30 g, and it covers about 4% of the 50 g FDA Daily Value for protein.
Serving sizes
| Portion | Weight | Protein | Calories |
|---|---|---|---|
| 100 g | 100 g | 6.4 g | 365 kcal |
| 1 cup (serving used here) | 30 g | 1.9 g | 110 kcal |
The USDA record lists no other household measure for this food; protein and calories scale from the per-100 g figures.
Related
Highest-protein grains per serving · Most protein-dense foods · Highest protein per 100 g
Quick answers
6.4 g. The 1 cup serving used on this page weighs 30 g and so carries 1.9 g.
1.8 g. That figure divides its 6.4 g of protein per 100 g by its 365 kcal per 100 g, so it does not depend on serving size.
No. On its own, the protein in corn flakes is short of at least one essential amino acid; other protein sources across the day fill the gap.
About 4%. One 1 cup serving has 1.9 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #2708453 (Cereal, corn flakes, plain), FNDDS survey data. USDA data is in the public domain. Values are the published reference figures for that record, not lab measurements for a specific brand or batch.