F Girard's research while affiliated with French National Institute for Agriculture, Food, and Environment (INRAE) and other places
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Publication (1)
The concentrations of antioxidant vitamins, particularly vitamin C, are often low in the plasma of institutionalized elderly subjects, and could explain their susceptibility to oxidative stress. However, as such low levels were not always found in home-living healthy elderly persons, the antioxidant vitamin depletion in the formers could result fro...
Citations
... Other subpopulations that appear to have an increased need for vitamin C are older adults, children, and exercisers. Older adults may have lower intestinal absorption of vitamin C than younger subjects (Davies et al., 1984;Brubacher et al., 2000), although other studies have suggested that older subjects have normal plasma vitamin C levels when dietary vitamin C intake is adequate (Wrieden et al., 2000;Newton et al., 1983;Birlouez-Aragon et al., 1995;Lykkesfeldt et al., 1997). However, there is agreement that older individuals often do not get enough vitamin C from their diet. ...
