Research

Mixed

Consuming potatoes, particularly when prepared to maximize resistant starch (e.g., cooled after cooking), supports gut health and satiety through the fermentation of resistant starch into short-chain fatty acids, without negatively impacting weight management or blood pressure when integrated into a balanced diet.

Eat potatoes as part of a balanced diet. To maximize health benefits, try boiling or baking them and then cooling them before eating to increase resistant starch, which feeds gut bacteria and helps you feel full. You don't need to peel them to get most nutrients, but keeping the skin adds extra fiber. If you are watching your weight, focus on total calories and preparation method (avoid frying) rather than avoiding potatoes entirely.

ModerateQualifiesMEDIUM confidence
Emerging research in animal models and some limited human studies suggests that RS may enhance satiety, positively affect body composition, favorably impact blood lipid and blood glucose levels and increase the amount of good bacteria in the colon... consumption of purple potatoes produced a statistically significant reduction in diastolic BP... modest weight loss was observed in all three groups... with no significant difference in weight loss between the groups
Katherine A. Beals · American Journal of Potato Research · 2018

Why this rating

The paper is a review citing observational studies, animal models, and a few small human trials; evidence is mixed and often confounded by preparation methods.

Source

Potatoes, Nutrition and Health

Katherine A. Beals · American Journal of Potato Research · 2018

DOI 10.1007/s12230-018-09705-4

narrative_reviewCited 229×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →