First, let's take a look at the macros. Each of these are listed in grams and as usual, normalized to 200 calories for easy comparison, so we're always comparing apples to apples.
| Potato | Corn |
| Nutrient | potato | corn |
| Protein | 5g | 5g |
| Carbohydrate | 45g | 41g |
| Fiber | 6g | 0g |
| Fat | 0g | 3g |
| Monounsat. Fat | 0g | 3g |
| Polyunsat. Fat | 0g | 1g |
| Saturated Fat | 0g | 0g |

Next, let's take a look at the Vitamin density. These values are shown in units of percent of recommended daily intake. And since we're showing 200 calories worth, this means anything above 10% is good.
| Nutrient | potato | corn |
| Choline | 7% | 0% |
| Vitamin A | 0% | 0% |
| Vitamin C | 68% | 0% |
| Vitamin E | 0% | 0% |
| Vitamin K | 6% | 0% |
Potato have significantly more Vitamins C, K than corn. Potato are a good source of Thiamin, Niacin, Potassium, Phosphorus, Iron. Potato are a great source of Vitamin C, Vitamin B6. Corn are a good source of Thiamin, Vitamin B6, Magnesium, Phosphorus, Iron.

And here we see the B-vitamins: B1 (Thiamin), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic Acid), B6 (Pyridoxine)
| Nutrient | potato | corn |
| Vitamin B1 | 21% | 21% |
| Vitamin B2 | 8% | 10% |
| Vitamin B3 | 23% | 17% |
| Vitamin B5 | 15% | 5% |
| Vitamin B6 | 70% | 31% |
| Vitamin B12 | 0% | 0% |
Now, lets look at mineral density. Here we have a lot of important electrolytes and minerals. Once again, units are in percent of RDI, thus for this 200 calorie serving anything above 10% would considered high.
| Nutrient | potato | corn |
| Sodium | 1% | 1% |
| Potasium | 31% | 4% |
| Calcium | 6% | 1% |
| Magnesium | 17% | 20% |
| Phosphorus | 26% | 20% |
| Iron | 34% | 25% |
| Manganese | 17% | 12% |
| Selenium | 2% | 19% |
| Copper | 28% | 17% |
| Zinc | 8% | 13% |