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Black Beans, Fiber, and Antioxidant Capacity Pilot Study: Examination of Whole Foods vs. Functional Components on Postprandial Metabolic, Oxidative Stress, and Inflammation in Adults with Metabolic Syndrome.

Reverri EJ, Randolph JM, Steinberg FM, Kappagoda CT, Edirisinghe I, Burton-Freeman BM - Nutrients (2015)

Bottom Line: The aims of this pilot study were to evaluate the ability of black beans to attenuate postprandial metabolic, oxidative stress, and inflammatory responses and determine relative contribution of dietary fiber and antioxidant capacity of beans to the overall effect.A significant meal × time interaction was observed for plasma antioxidant capacity (p = 0.002) revealing differences over time: AM > BB > FM.Triglycerides and interleukin-6 (IL-6) increased in response to meals (p < 0.0001).

View Article: PubMed Central - PubMed

Affiliation: Department of Nutrition, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA. ebjordan@ucdavis.edu.

ABSTRACT
Beans (Phaseolus vulgaris) contain bioactive components with functional properties that may modify cardiovascular risk. The aims of this pilot study were to evaluate the ability of black beans to attenuate postprandial metabolic, oxidative stress, and inflammatory responses and determine relative contribution of dietary fiber and antioxidant capacity of beans to the overall effect. In this randomized, controlled, crossover trial, 12 adults with metabolic syndrome (MetS) consumed one of three meals (black bean (BB), fiber matched (FM), and antioxidant capacity matched (AM)) on three occasions that included blood collection before (fasting) and five hours postprandially. Insulin was lower after the BB meal, compared to the FM or AM meals (p < 0.0001). A significant meal × time interaction was observed for plasma antioxidant capacity (p = 0.002) revealing differences over time: AM > BB > FM. Oxidized LDL (oxLDL) was not different by meal, although a trend for declining oxLDL was observed after the BB and AM meals at five hours compared to the FM meal. Triglycerides and interleukin-6 (IL-6) increased in response to meals (p < 0.0001). Inclusion of black beans with a typical Western-style meal attenuates postprandial insulin and moderately enhances postprandial antioxidant endpoints in adults with MetS, which could only be partly explained by fiber content and properties of antioxidant capacity.

No MeSH data available.


Related in: MedlinePlus

Postprandial insulin (A) and glucose (B) responses to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal.
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nutrients-07-05273-f002: Postprandial insulin (A) and glucose (B) responses to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal.

Mentions: All meals resulted in elevated triglycerides over the five hour postprandial period, peaking around three hours and remaining elevated from baseline by five hours (time p < 0.0001) (Figure S1). No differences in the postprandial triglyceride responses were observed among meals (Table 3). No significant differences in glucose concentrations were observed among meals (Figure 2B and Table 3); however, a main effect of meal was apparent for the insulin response (meal p < 0.0001). The mean five hour insulin response after the BB meal was ~34% lower than the AM meal and the FM meal was ~24% lower than the AM meal (Figure 2A and Table 3).


Black Beans, Fiber, and Antioxidant Capacity Pilot Study: Examination of Whole Foods vs. Functional Components on Postprandial Metabolic, Oxidative Stress, and Inflammation in Adults with Metabolic Syndrome.

Reverri EJ, Randolph JM, Steinberg FM, Kappagoda CT, Edirisinghe I, Burton-Freeman BM - Nutrients (2015)

Postprandial insulin (A) and glucose (B) responses to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555112&req=5

nutrients-07-05273-f002: Postprandial insulin (A) and glucose (B) responses to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal.
Mentions: All meals resulted in elevated triglycerides over the five hour postprandial period, peaking around three hours and remaining elevated from baseline by five hours (time p < 0.0001) (Figure S1). No differences in the postprandial triglyceride responses were observed among meals (Table 3). No significant differences in glucose concentrations were observed among meals (Figure 2B and Table 3); however, a main effect of meal was apparent for the insulin response (meal p < 0.0001). The mean five hour insulin response after the BB meal was ~34% lower than the AM meal and the FM meal was ~24% lower than the AM meal (Figure 2A and Table 3).

Bottom Line: The aims of this pilot study were to evaluate the ability of black beans to attenuate postprandial metabolic, oxidative stress, and inflammatory responses and determine relative contribution of dietary fiber and antioxidant capacity of beans to the overall effect.A significant meal × time interaction was observed for plasma antioxidant capacity (p = 0.002) revealing differences over time: AM > BB > FM.Triglycerides and interleukin-6 (IL-6) increased in response to meals (p < 0.0001).

View Article: PubMed Central - PubMed

Affiliation: Department of Nutrition, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA. ebjordan@ucdavis.edu.

ABSTRACT
Beans (Phaseolus vulgaris) contain bioactive components with functional properties that may modify cardiovascular risk. The aims of this pilot study were to evaluate the ability of black beans to attenuate postprandial metabolic, oxidative stress, and inflammatory responses and determine relative contribution of dietary fiber and antioxidant capacity of beans to the overall effect. In this randomized, controlled, crossover trial, 12 adults with metabolic syndrome (MetS) consumed one of three meals (black bean (BB), fiber matched (FM), and antioxidant capacity matched (AM)) on three occasions that included blood collection before (fasting) and five hours postprandially. Insulin was lower after the BB meal, compared to the FM or AM meals (p < 0.0001). A significant meal × time interaction was observed for plasma antioxidant capacity (p = 0.002) revealing differences over time: AM > BB > FM. Oxidized LDL (oxLDL) was not different by meal, although a trend for declining oxLDL was observed after the BB and AM meals at five hours compared to the FM meal. Triglycerides and interleukin-6 (IL-6) increased in response to meals (p < 0.0001). Inclusion of black beans with a typical Western-style meal attenuates postprandial insulin and moderately enhances postprandial antioxidant endpoints in adults with MetS, which could only be partly explained by fiber content and properties of antioxidant capacity.

No MeSH data available.


Related in: MedlinePlus