Dr. Martha Raidl April 22, 2014
Overview Potato Consumption Nutrient profile Health benefits Potatoes on MyPlate Conclusions
Total potato consumption: 1970 to 2011
Fresh potato and processed potato consumption,
Decrease in consumption– Negative image of potatoes Couch potato Comments people made about potatoes: “Too high in calories” “They’re fattening” “Too many carbs”
Nutrient Profile – Calories and Macronutrients
Potatoes and calories What percentage of calories that people consume come from potatoes? 1. < 5 % 2. 10% 3. 20% 4. 30% 5. 40%
Potatoes = 3% of calories
Calories– affected by toppings 270 calories (10 oz) 440 calories 320 calories 540 calories
Macronutrients: Nutrient Analysis Carbohydrates Amylose Amylopectin Fiber Resistant Starch Protein Fat
Carbohydrates: Are potatoes too high in carbs? Average calorie intake = calories/day 2000 x.55 = 1100 calories /4 calories/ gm carbs = 275 gm of carbohydrate 1 serving of potato = 5 ounces = 26 grams of carb 26g carb/275 g carb x 100 = 9.5 % of carb
Low carb lunacy Weight loss: water, muscle mass, fat High in fat and cholesterol Low in fruits, vegetables, whole grains, dairy Side effects: headaches, dizziness, fatigue, and constipation
Macronutrients Carbohydrate: 26 grams Mainly complex Amylose and amylopectin Fiber (cellulose): 2 gm 74% = Insoluble: stay regular 26% = Soluble: lowers cholesterol
Resistant Starch (RS) – Non digested
Resistant Starch (RS)
Benefits of SCFA
Amount of RS in 100 gm of food
Health benefits of RS Decrease insulin sensitivity Decrease blood glucose levels Decrease appetite
Macronutrients Protein Relatively low (3.0 g) High quality (4 essential amino acids) Fat Fat-free and Heart healthy 0 grams total, trans and saturated fat 0 mg cholesterol
Micronutrients
7 Vitamins: A, C*, B6, Folate, Thiamin, Niacin, Riboflavin 7 Minerals: Sodium, Potassium*, Calcium, Magnesium, Iron, Phosphorous, Zinc
Phytochemicals/Phytonutrients Help prevent heart disease and cancer Phenolics (all) Anthocyanins (red, purple) Carotenoids (yellow) Kukoamines Quercetin Ezekiel et al., Beneficial phytochemicals in potato- a review, Food Research International, 50, 2013,
Micronutrients keep your body healthy
Potatoes on MyPlate Vegetables are organized into 5 subgroups: dark green starchy red and orange beans and peas other
Conclusions Potatoes are a nutrient-dense vegetable Yes, they are a superfood