Metabolic parameters of postmenopausal women after quinoa or corn flakes intake - a prospective and double-blind study

Abstract A prospective and double-blind study was conducted on 35 women with weight excess who consumed 25 grams of quinoa flakes (QF) or corn flakes (CF) daily during a period of four consecutive weeks. At the beginning (T1) and at the end (T2) of the intervention, total calorie intake was evaluate...

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Bibliographic Details
Published in:International journal of food sciences and nutrition 2014-05, Vol.65 (3), p.380-385
Main Authors: De Carvalho, Flávia Giolo, Ovídio, Paula Payão, Padovan, Gilberto João, Jordão Junior, Alceu Afonso, Marchini, Julio Sérgio, Navarro, Anderson Marliere
Format: Article
Language:English
Subjects:
Aged
Antioxidants - metabolism
Chenopodium quinoa
Cholesterol - blood
Cholesterol, LDL - blood
Cholesterolemia
corn flakes
Diet
Dietary Carbohydrates - pharmacology
Double-Blind Method
Energy Intake
Female
Food science
Glutathione - blood
Grain
Humans
Lignans - urine
Lipids - blood
Menopause
Metabolism
Middle Aged
Oxidative stress
Postmenopause
Prospective Studies
quinoa
Seeds
Thiobarbituric Acid Reactive Substances
Triglycerides - blood
Vitamin E - blood
Women
Zea mays
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Summary:Abstract A prospective and double-blind study was conducted on 35 women with weight excess who consumed 25 grams of quinoa flakes (QF) or corn flakes (CF) daily during a period of four consecutive weeks. At the beginning (T1) and at the end (T2) of the intervention, total calorie intake was evaluated, anthropometric assessment was performed, blood was collected for the determination of glucose, total cholesterol and fractions, oxidative stress markers, vitamin E and enterolignans. Significant reductions were detected in serum triglyceride (CF group = 133.9 ± 89.4 to 113.7 ± 57 mg/dl and QF group = 112.3 ± 35 to 107.9 ± 33.1 mg/dl), TBARS (CF group = 3.2 ± 0.8 to 2.9 ± 0.5 µmol/l and QF group = 3.06 ± 0.6 to 2.89 ± 0.5 µmol/l) and vitamin E concentrations (CF group = 19.5 ± 5 to 17.9 ± 4 µM and QF group = 17.9 ± 4 to 16.9 ± 3 µM) and an increase in urinary excretion of enterolignans (CF group = 2.05 ± 1.3 to 2.24 ± 1.4 nm/ml and QF group = 2.9 ± 1.6 to 3.2 ± 2.7 nm/l), in both study groups. The reduction of total cholesterol (191 ± 35 to 181 ± 28 mg/dl) and LDL-cholesterol (LDL-c) (129 ± 35 to 121 ± 26 mg/dl), and the increase in GSH (1.78 ± 0.4 to 1.91 ± 0.4 µmol/l) occurred only in the QF group, showing a possible beneficial effect of QF intake.
ISSN:0963-7486
1465-3478
DOI:10.3109/09637486.2013.866637