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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 total ORAC response to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal; ORAC, oxygen radical absorbance capacity.
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nutrients-07-05273-f003: Postprandial total ORAC response to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal; ORAC, oxygen radical absorbance capacity.

Mentions: Oxidative status was analyzed by plasma total ORAC, a non-specific indicator of antioxidant capacity, and OxLDL, an indicator of oxidative damage. The postprandial total ORAC response was significant for meal (p < 0.0001), time (p < 0.0001), and meal × time interaction (p = 0.002). Overall, the AM meal produced the highest average five hour total ORAC value, which was ~21% higher than after the FM meal (p < 0.0001), which was ~11% higher than after the BB meal (p = 0.0004) (Figure 3). Despite meal related differences in plasma antioxidant capacity (total ORAC), no significant effects on OxLDL were apparent (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 total ORAC response to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal; ORAC, oxygen radical absorbance capacity.
© Copyright Policy
Related In: Results  -  Collection

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

nutrients-07-05273-f003: Postprandial total ORAC response to moderate-fat breakfast with BB, AM, or FM. BB, black bean meal; FM, fiber matched meal; AM, antioxidant matched meal; ORAC, oxygen radical absorbance capacity.
Mentions: Oxidative status was analyzed by plasma total ORAC, a non-specific indicator of antioxidant capacity, and OxLDL, an indicator of oxidative damage. The postprandial total ORAC response was significant for meal (p < 0.0001), time (p < 0.0001), and meal × time interaction (p = 0.002). Overall, the AM meal produced the highest average five hour total ORAC value, which was ~21% higher than after the FM meal (p < 0.0001), which was ~11% higher than after the BB meal (p = 0.0004) (Figure 3). Despite meal related differences in plasma antioxidant capacity (total ORAC), no significant effects on OxLDL were apparent (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