Efficacy of Potato Resistant Starch (RS) 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 study conducted in rodents that assessed the impact of potato RS supplementation on changes in gut microbiota composition. The study looked 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.
Potato Product Form Impacts In Vitro Starch Digestibility and Glucose Transport but Only Modestly Impacts 24h Blood Glucose Response in Humans
Mario Ferruzzi, PhD, North Carolina State University
A trial with pre-clinical and clinical components that assessed 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 also assessed the impact of potatoes on the gut microbiome.
Potato Consumption and Risk of Chronic Disease: Qualitative Gap Analysis
Liz Johnson, PhD, Tufts University
This study organizes and summarizes current observational study data related to potato intake and cardiometabolic health outcomes in adults. It is designed to lay the groundwork for more in-depth analyses and clinical trials around potatoes and their relationship to cardiometabolic health outcomes.
The Effect of Potatoes on Markers of Cardiometabolic Health
Penny Kris-Etherton, PhD, RD, Pennsylvania State University
A clinical trial that compared the effect of daily potato consumption to a fixed amount of refined cereals and grains in healthy weight individuals. The study looked 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.
Effects of Potato Resistant Starch (RS) Intake on Insulin Sensitivity, Related Metabolic Markers and Satiety in Overweight or Obese Men and Women
Kevin Maki, PhD, Midwest Biomedical Research – Center for Metabolic & Cardiovascular Health
A clinical trial comparing acute (one day) potato intake with carbohydrate-matched foods low in fiber and RS. Participants will consume roughly two potatoes per day, in different meal forms containing 15 grams of RS. The study looks at potatoes’ impact on postprandial insulin sensitivity, markers of satiety and free fatty acid levels in overweight or obese adults.
Potato Intake and Risk of Cardiovascular Disease in a Large Norwegian Cohort
Trine Moholdt, PhD, Norwegian University of Science and Technology
An epidemiological study investigated the association between potato intake and risk of all-cause mortality and cardiovascular disease mortality. The study also determined there is no association or a very weak association between boiled potatoes and an increased risk of type 2 diabetes, hypertension, cardiovascular disease-related hospitalization and obesity.
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 young girls. The study will also evaluate the effects of potato consumption on the risk of elevated glucose levels and dyslipidemias at the end of adolescence.
Short-Term RCT of Increased Dietary Potassium from Potato or Potassium Gluconate: Effect on Blood Pressure, Microcirculation, and Potassium and Sodium Retention in Pre-Hypertensive-to-Hypertensive Adults
Connie Weaver, PhD, Purdue University
This clinical trial investigated the effect of increased dietary potassium from a whole food source – baked/boiled potatoes and baked French fries – or a potassium supplement on blood pressure and other cardiovascular disease risk factors compared to a ‘typical American’ control diet (lower potassium intake) among pre-hypertensive-to-hypertensive men and women. Results showed that baked/boiled potato consumption had the greatest benefit on reducing sodium retention, even more than the supplement, and resulted in a greater reduction in systolic blood pressure (SBP) compared to the control diet.