Here's what www.fitday.com has to say about beets, raw:
Nutrition Facts
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Amount Per 1 cup
Calories_58.48
Calories from Fat 2.08
% Daily Value *
Total Fat 0.231g 0%
Saturated Fat 0.0367g 0%
Polyunsaturated Fat 0.083g
Monounsaturated Fat 0.0449g
Cholesterol 0mg 0%
Sodium 106.08mg 4%
Potassium 442mg 13%
Total Carbohydrate 13g 4%
Dietary Fiber 3.81g 15%
Protein 2.19g 4%
Alcohol 0g
Vitamin A 1 %
Vitamin C 11 %
Calcium 2 %
Iron 6 %
Vitamin D 0 %
Vitamin E 1 %
Thiamin 2 %
Riboflavin 3 %
Niacin 2 %
Folate 37 %
Vitamin B-6 5 %
Vitamin B-12 0 %
Phosphorus 5 %
Magnesium 8 %
Zinc 3 %
Copper 5 %