Monday, March 19, 2007

NuTrIeNtS In PoTaToEs

It's quite amazing what an unassuming tuber can contain. Within its red, yellow, white or brown protective exterior, a potato can provide much of the recommended daily allowance (RDA) of a number of vitamins and minerals.

For example, potatoes can have 600-800 mg of potassium, about 40 percent more than a banana. Potassium is essential to the body because of its role in attaining optimal muscle performance and improving the nerves' response to stimulation. Iron, essential in helping the body convert food to energy as well as resist infection, is also found in potatoes. A Russet Norkotah can have 40 percent of the RDA of iron.

One would expect potatoes to have minerals, as they spend their life underground. But potatoes are also a great source of vitamins, even supplying vitamin C, the sunshine vitamin. Vitamin C is essential to help maintain healthy connective tissue and heal wounds. The many varieties of Washington potatoes are also good sources of B vitamins, helping the body make healthy red blood cells and amino acids.


So think of a potato as a big vitamin pill you can top with butter, cheddar, chives, sour cream, bacon, black beans, cheesy chicken...


You can add those tasty toppings to your potato because it contains no fat or cholesterol and minimal sodium. What it does have is natural fiber, all those vitamins and minerals, and great flavor. And a six-ounce potato contains three grams of highly digestible protein, almost as much as half a glass of milk, giving it the potential of being a meal in itself.

Because of the variety of potato colors, shapes, sizes and textures and their versatility as recipe ingredients, you can have potatoes for breakfast, lunch or dinner (or all three) and support the five daily fruit and vegetable servings recommended for good health and nutrition.


CARBO FACTS
One of the most popular nutritional myths today concerns the dietary evils of carbohydrates. Despite the media hype, scientific evidence indicates that when consumed in normal amounts...

  • Carbohydrates DO NOT cause weight gain and obesity
  • Carbohydrates DO NOT automatically cause blood sugar "spikes" and insulin "surges"
  • Carbohydrates DO NOT cause diabetes, heart disease or cancer.
Carbohydrates are the body's primary fuel source. Muscles prefer them and the brain relies on them.In fact, carbohydrates are so crucial to the body that if you severely cut them from your diet, your body will begin to breakdown muscle and other protein containing tissues—your heart and other vital organs—in order to make them.

WATCHING YOUR WEIGHT—AND HEALTH
Leading nutrition experts agree that weight gain is a result of consuming more calories than you expend, regardless of where those calories come from—carbohydrates, protein or fat. Maintaining that important calorie balance is easier with a diet that is rich in a variety of fruits and vegetables as these foods tend to be low in calorie content, yet high in essential nutrients.


THE HEALTHFUL POTATO
Misinformation and misconceptions regarding the nutritional value of the potato abound. In fact, an average (~5.3 oz) potato with the skin contains:

  • 45% of the daily value for vitamin C
  • as much or more potassium (720 mg) than either bananas, spinach or broccoli
  • trace amounts of thiamin, riboflavin, folate, magnesium, phosphorous, iron and zinc
  • all for only 100 calories and no fat.
And potatoes with the skin on are an excellent source of fiber. In fact, with 3 grams of fiber per serving, a potato equals or exceeds that of many "whole" grain products—whole grain bread, whole wheat pasta and many cereals.

Despite the popular notion, the majority of nutrients are not found in the skin, but in the potato itself. Nonetheless, leaving the skin on the potatoes retains all the nutrients and makes them easier to prepare.


Nutrition Information Table

(for serving size of 148 grams)

Russet Norkotah Russet Burbank Red Yellow White
Calories 110 110 100 120 110
Calories from Fat 0 0 0 0 0
Total Fat 0 0 0 0 0
Sodium 10 mg 15 mg 0 mg 0 mg 0 mg
Potassium 680 mg 640 mg 710 mg 810 mg 700 mg
Total Carbohydrates 22 g 23 g 23 g 26 g 25 g
Dietary Fiber 3 g 2 g 2 g 2 g 2 g
Protein 4 g 4 g 3 g 3 g 3 g
Vitamin C 8 % 10 % 10 % 15 % 10 %
Riboflavin 4 % 2 % 0 % 12 % 2 %
Iron 40 % 10 % 4 % 4 % 4 %
Vitamin B6 15 % 15 % 15 % 15 % 10 %
Thiamin 6 % 10 % 8 % 6 % 6 %
Niacin 8 % 10 % unavailable unavailable unavailable
Folic Acid 4 % 4 % unavailable unavailable unavailable

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