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APotato (Poly)phenols on Postprandial Insulinemia and Platelet Aggregation in Premenopausal Overweight Women: A Pilot Study
Author(s) -
Huang Yancui,
Qian Cheng,
Xiao Di,
Rudraiah Laasya,
Park Eunyoung,
Edirisinghe Indika,
BurtonFreeman Britt
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.259.2
Subject(s) - postprandial , food science , glycemic , chemistry , insulin , carbohydrate , medicine , endocrinology , biochemistry
Potatoes are known for their carbohydrate, potassium, vitamin C and fiber content; however potatoes also contain chlorogenic acids (CGA). Colored potatoes may contain additional (poly)phenols, such as anthocyanins (ACN) in purple potatoes. Polyphenols exert various health promoting biological effects. Previous work suggests CGA and ACN have a role in glycemic control and platelet function. The present study examined two potato varieties: white potato (WP) containing CGA and purple potato (PP) containing CGA and ACN in a 6 h postprandial study in women (n=12, crossover design) on postprandial metabolic and epinephrine (EPI)‐ and ADP‐ induced platelet aggregation responses. Potatoes (200 g cooked) were included in a high carbohydrate, high fat breakfast (~690 kcal). A demographically match control group (CON, n=8) consumed a rice substituted breakfast without CGA or ACN and were used for metabolic comparisons only. PP and WP significantly reduced postprandial insulin responses compared to CON (p<0.05). Glucose responses were not different among groups. PP significantly inhibited EPI‐induced‐ (p=0.015) and ADP‐induced‐ (P=0.009) platelet aggregation compared to WP. Potatoes compared to a common starch replacement reduced the insulin demand to achieve post‐meal glucose homeostasis. PP with CGA and ACN prolonged platelet aggregation time compared to WP, suggesting a potential role for certain potato varieties containing (poly)phenols in cardiovascular disease risk reduction. The work supports future research to explore potatoes and cardio‐metabolic health. Supported by various donor funds.