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In vitro antioxidant capacity of commercial dietary supplements.
Almeida, Ivone M.C.; Barreira, João C.M.; Oliveira, M.B.P.P.; Ferreira, Isabel C.F.R.Consumption of food rich in natural antioxidant compounds has been linked to a reduced risk of developing chronic oxidative stress-related diseases, including cancer and cardiovascular and neurodegenerative diseases. This therapeutic potential of antioxidants has lead, in recent years, to a dramatic growth of the market of functional foods and dietary supplements (DS) claiming “antioxidant power”, and to the wi...
Antioxidant potential of individual or combined dietary supplements
Almeida, Ivone M.C.; Barreira, João C.M.; Oliveira, M.B.P.P.; Ferreira, Isabel C.F.R.An antioxidant may be defined as a substance that when present at low concentrations, compared with those of the oxidizable substrate, significantly delays or inhibits its oxidation [1]. Nowadays there are several commercial dietary supplements which claim for antioxidant activity. In this work, the antioxidant activity (AA) of 17 dietary supplements (Table 1) available in different formulations (pills, capsule...
Dietary antioxidant supplements: benefits of their combined use
Almeida, Ivone M.C.; Barreira, João C.M.; Oliveira, M.B.P.P.; Ferreira, Isabel C.F.R.Several dietary supplements claim medicinal benefits due to their composition in hydrophilic and lipophilic molecules, natural extracts or synthetic compounds with antioxidant properties. In the present work, the antioxidant activity of selected supplements taken in pills, capsules or infusions were studied either individually or combined. Linear discriminant analysis (LDA) was used to categorize the condensed ...
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