Potato Intake and Risk of Cardiovascular Disease in a Large Norwegian Cohort
Trine Moholdt, PhD, Norwegian University of Science and Technology
An epidemiological study investigating the association between potato intake and risk of all-cause mortality or cardiovascular disease mortality. The study will also determine if there is an association between potatoes and an increased risk of type 2 diabetes, hypertension, cardiovascular disease-related hospitalization, and obesity.
The Effect of Potatoes on Markers of Cardiometabolic Health
Penny Kris-Etherton, PhD, RD, Pennsylvania State University
A clinical trial comparing the effect of daily potato consumption to a fixed amount of refined cereals and grains in healthy weight individuals. The study will look at the following markers of cardiometabolic health: fasting glucose levels, insulin sensitivity, blood pressure, lipids and lipoproteins, arterial stiffness, body weight and dietary intake, as well as diet quality.
Efficacy of Potato Resistant Starch on Improving Gut Microbiota Composition, Inflammatory Profile, and Insulin Signaling in High-Fat Fed Rats
Claire de La Serre, PhD, University of Georgia
An animal trial conducted in rodents that will assess the impact of potato resistant starch (RS) supplementation on changes in gut microbiota composition. The study will look at gastrointestinal function, inflammatory signaling, and insulin function to understand the role of potato RS as a potent prebiotic, with potential therapeutic benefits against obesity and its associated comorbidities.
Impact of Phenol-Carbohydrate Interactions on Gastrointestinal Transit and Glycemic Response
Mario Ferruzzi, PhD, North Carolina State University
A trial with pre-clinical and clinical components assessing the digestive release and accessibility of white potato phenols, as well as the ability of potato phenolics to impact starch digestion and glucose uptake and transport. The study will also assess the impact of potatoes on the gut microbiome.
Effects of Potatoes on Potassium Retention and Blood Pressure in Mildly Hypertensive Men and Women
Connie Weaver, PhD, Purdue University
A clinical trial investigating whether potassium retention from potatoes is equal to or better than that of potassium supplements in hypertensive adults. The primary outcome variables in this study include blood pressure and the impact of potassium on bone health, as measured by acid-base balance and bone calcium retention.
Influence of Resistant Starch in Baked and Boiled Potatoes
Mindy Maziarz, PhD, RDN, LD, Texas Woman’s University
A clinical trial analyzing the impact of RS in potatoes prepared and served using different methods (baked then chilled versus boiled then reheated). The study will also measure the impact of potato RS on blood glucose homeostasis and subjective satiety levels in overweight females.
Potato Consumption and Energy Balance: A Randomized, Controlled, Clinical Trial
David Allison, PhD, Indiana University
A clinical trial determining whether a difference exists in weight gain with daily potato consumption versus a calorie-matched snack of almonds. The outcomes will provide additional data to better understand the impact of dietary complexity on carbohydrate metabolism and weight change.
Nocturnal Blood Glucose Responses to Potato-Based Mixed Evening Meals
Brooke Devlin, PhD, Australian Catholic University
A clinical trial investigating the impact of potato consumption on postprandial and nocturnal glycemic responses, when consumed as part of a balanced meal in a real-world setting. The results will help to extend understanding of the effect of potatoes prepared by different methods, and provided as part of a mixed meal, on glycemic responses in healthy subjects and subjects with type 2 diabetes.
Potato-Supported Strategies to Increase Carbohydrate Oxidation, Race Economy and Performance during Endurance Exercise
Louise Burke, PhD, Australian Institute of Sport
A clinical trial investigating whether a relationship exists between increased carbohydrate oxidation and improved exercise economy and performance in elite athletes. The results will help to determine if specific feeding strategies, in the form of potato-based meals, can increase glycogen stores in endurance athletes to higher levels than conventional carbohydrate loading.
Ingestion of Potatoes as a Nutritional Strategy to Improve Cycling Time-Trial Performance in Endurance Trained Cyclists
Nicholas Burd, PhD, University of Illinois
A clinical trial looking at the effect of potato consumption during a two-hour cycling challenge on subsequent time trial performance, when compared to a commercially available carbohydrate gel
or a control in 12 well-trained cyclists. The results will be used to determine the impact of potatoes on utility as a race fuel during prolonged endurance exercise.
Anabolic Properties of Potato Derived Protein
Luc van Loon, PhD, Maastricht University
A clinical trial assessing the impact of 30 grams of potato protein on muscle protein synthesis rates at rest, as well as during recovery from exercise, in young healthy males. The study data will help to determine how well potato protein can support muscle protein synthesis and muscle reconditioning following exercise.
Healthy Adolescent Dietary Patterns for Minimizing Cardiometabolic Risk Include Regular Potato Consumption
Lynn Moore, DSc, MPH, Boston University
An epidemiological study evaluating the contribution of potato consumption, as part of a healthy diet, to changes in body fat and blood pressure throughout adolescence in a population of young girls. The study will also evaluate the effects of potato consumption on risk of elevated glucose levels or dyslipidemias at the end of adolescence.
Role of White Potatoes on Subjective Appetite, Food Intake, Glycemic Response, Mood and Memory Performance in Normal Weight and Overweight/Obese Children
Nick Bellissimo, PhD, Ryerson University
A recently completed series of clinical studies in normal weight
and overweight children assessing the impact of 50 grams of carbohydrate from white potatoes and other sources on cognitive performance, glycemia, and subjective appetite. Among other things, results indicated that children who consumed potatoes, particularly as French fries, had improved short-term declarative memory, and that children were more alert and pleasant after eating potatoes, especially in the form of French fries and hash browns. [manuscript under review]
Effect of White Potatoes and Potato Components on In Vivo and In Vitro Glycemic Response and Satiety Across the Lifespan
Nick Bellissimo, PhD, Ryerson University
A trial with both in vitro and clinical components to continue to evaluate the role of white potatoes on various health indices in young children. The study will assess the impact of potato cooking methods on postprandial glycemia and satiety in children as well as healthy elderly subjects.