Energy 321 kJ (77 kcal)
Carbohydrates 17.47 g
Starch 15.44 g
Dietary fiber 2.2 g
Fat 0.1 g
Protein 2 g

Vitamins:
Thiamine (B1) (7%) 0.08 mg
Riboflavin (B2) (3%) 0.03 mg
Niacin (B3) (7%) 1.05 mg
Pantothenic acid (B5) (6%) 0.296 mg
Vitamin B6 (23%) 0.295 mg
Folate (B9) (4%) 16 μg
Vitamin C (24%) 19.7 mg
Vitamin E (0%) 0.01 mg
Vitamin K (2%) 1.9 μg

Trace metals:
Calcium (1%) 12 mg
Iron (6%) 0.78 mg
Magnesium (6%) 23 mg
Manganese (7%) 0.153 mg
Phosphorus (8%) 57 mg
Potassium (9%) 421 mg
Sodium (0%) 6 mg
Zinc (3%) 0.29 mg

Other constituents:
Water 75 g

These are the specs at which I'm currently running my potato, but I am willing to upgrade and add some more protein.