The effect of wild blueberry (Vaccinium angustifolium) consumption on postprandial serum antioxidant status in human subjects
Open accessAbstract
The aim of the present study was to determine whether the consumption of wild blueberries (Vaccinium angustifolium), a concentrated source of non-nutritive antioxidant phytochemicals, would enhance postprandial serum antioxidant status in healthy human subjects. A single-blinded crossover study was performed in a group of eight middle-aged male subjects (38-54 years). Subjects consumed a high-fat meal and a control supplement followed 1 week later by the same high-fat meal supplemented with 100.0 g freeze-dried wild blueberry powder. Upon brachial vein catheterization, fasting and postprandial serum samples were taken sequentially and analysed for lipids and glucose and for serum antioxidant status. Serum antioxidant status was determined using the oxygen radical absorbance capacity (ORAC) assay and the total antioxidant status (TAS) assay. The wild-blueberry treatment was associated with a significant treatment effect as determined by the ORAC assay (water-soluble fraction ORAC(perchloric acid (PCA)), P=0.04). Significant increases in serum antioxidant status above the controls were observed at 1 h (ORAC(PCA) (8.5 % greater), P=0.02; TAS (4.5 % greater), P=0.05), and 4 h (ORAC(total) (15.0 % greater), P=0.009; ORAC(acetone) (16.0 % greater), P=0.007) post-consumption of the high-fat meal. In conclusion, the consumption of wild blueberries, a food source with high in vitro antioxidant properties, is associated with a diet-induced increase in ex vivo serum antioxidant status. It has been suggested that increasing the antioxidant status of serum may result in the reduced risk of many chronic degenerative diseases.
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Benefits of berry intervention were seen in healthy subjects and in those with existing metabolic risk factors.
“Benefits were seen in healthy subjects and in those with existing metabolic risk factors.”
From Berries: emerging impact on cardiovascular health (2010) · cites this paper as [38]
Human intervention studies using chokeberries, cranberries, blueberries, and strawberries (fresh, juice, or freeze-dried), or purified anthocyanin extracts have demonstrated significant improvements in LDL oxidation, lipid peroxidation, total plasma antioxidant capacity, dyslipidemia, and glucose metabolism.
“Human intervention studies using chokeberries, cranberries, blueberries, and strawberries (either fresh, or as juice, or freeze-dried), or purified anthocyanin extracts have demonstrated significant improvements in LDL oxidation, lipid peroxidation, total plasma antioxidant capacity, dyslipidemia, and glucose metabolism.”
From Berries: emerging impact on cardiovascular health (2010) · cites this paper as [38]
The most significant outcomes of clinical studies show an increase in plasma or urinary antioxidant capacity, a decrease in LDL oxidation and lipid peroxidation, a decrease in plasma glucose or total cholesterol, and an increase in HDL-cholesterol following berry intervention.
“The most significant outcomes of these clinical studies show an increase in plasma or urinary antioxidant capacity, a decrease in LDL oxidation and lipid peroxidation, a decrease in plasma glucose or total cholesterol, and an increase in HDL-cholesterol following berry intervention.”
From Berries: emerging impact on cardiovascular health (2010) · cites this paper as [38]
Of 20 trials reviewed, nine involved measures of post-prandial status, in which berry consumption was shown to significantly decrease postprandial oxidative stress, especially lipid peroxidation.
“Of 20 trials reviewed, nine involved measures of post-prandial status, in which berry consumption was shown to significantly decrease postprandial oxidative stress, especially lipid peroxidation.”
From Berries: emerging impact on cardiovascular health (2010) · cites this paper as [38]
Clinical studies in healthy humans, subjects with diabetes mellitus, dyslipidemia, metabolic syndrome, hypertension, or in smokers, show a significant decrease in CVD risk factors, especially glucose, lipids and lipid peroxidation, and systolic blood pressure, following berry intervention.
“Clinical studies in healthy humans, subjects with diabetes mellitus, dyslipidemia, metabolic syndrome, hypertension, or in smokers, show a significant decrease in CVD risk factors, especially glucose, lipids and lipid peroxidation, and systolic blood pressure, following berry intervention.”
From Berries: emerging impact on cardiovascular health (2010) · cites this paper as [38]
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Berries: emerging impact on cardiovascular health
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“…± 4.04 years) None 200 mL chokeberry juice (Aronia melanocarpa) Decrease in fasting glucose, HbA1C, and lipids (P < 0.001) in the three-month intervention Kay and Holub (2002)38 Postprandial phases, one week apart Single-blind crossover study Eight middleaged male subjects (mean age, 47 ± 2…”
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- Authors
- Kay, C. D., & Holub, B. J.
- Affiliations
- University of Guelph (CA)
- Corresponding author
- Holub, Bruce J.
- ORCID
- Kay, Colin D.
- Venue
- British Journal Of Nutrition
- Publisher
- Cambridge University Press (CUP)
- Published
- 2002-10
- Volume
- 88
- Issue
- 4
- Pages
- 389-397
- ISSN
- 0007-1145 (ISSN-L)
- 1475-2662
- OpenAlex
- W2100123001
- Cited by
- 199
- References
- 50
- Citations by year
- 2026: 3 · 2025: 4 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 9 · 2020: 13 · 2019: 8 · 2018: 9 · 2017: 7 · 2016: 9 · 2015: 11 · 2014: 10 · 2013: 16 · 2012: 11
- FWCI
- 3.09
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- British Journal Of Nutrition (publishedVersion)
- PubMed (publishedVersion)
- UEA Digital Repository (University of East Anglia) (submittedVersion)
- Funders
- Ontario Ministry of Agriculture, Food and Rural Affairs
- Ministry of Agriculture, Food and Rural Affairs
- Topics
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
- Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
- Keywords
- Vaccinium angustifolium, high-fat meal, dietary antioxidants, phytochemicals, ORAC, total antioxidant status
- MeSH terms
- Analysis of Variance, Antioxidants, Ascorbic Acid, Blood Glucose, Diet, Dietary Fats, Dietary Fiber, Humans, Lipids, Male, Middle Aged, Nutritional Status, Vitamin E, Single-Blind Method, Cross-Over Studies, Postprandial Period, Blueberry Plants
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