Anthocyanins, phenolics, and antioxidant capacity in diverse small fruits: vaccinium, rubus, and ribes.
- R. Moyer, K. Hummer, C. Finn, B. Frei, R. Wrolstad
- Chemistry, MedicineJournal of Agricultural and Food Chemistry
- 30 January 2002
Though ACY may indicate TPH, the range observed in ACY/TPH ratios precludes prediction of ACY from TPH and vice versa for a single genotype, and in general, TPH was more highly correlated to antioxidant capacity than ACY was.
Ascorbate is an outstanding antioxidant in human blood plasma.
- B. Frei, L. England, B. Ames
- BiologyProceedings of the National Academy of Sciences…
- 1 August 1989
The data demonstrate that ascorbate is the most effective aqueous-phase antioxidant in human blood plasma and suggest that in humans ascorBate is a physiological antioxidant of major importance for protection against diseases and degenerative processes caused by oxidant stress.
Tea Catechins and Polyphenols: Health Effects, Metabolism, and Antioxidant Functions
The effects of tea and green tea catechins on biomarker of oxidative stress, especially oxidative DNA damage, appear very promising in animal models, but data on biomarkers of in vivo oxidative stress in humans are limited.
Coffee and Health: A Review of Recent Human Research
Current available evidence suggests that it may be prudent for pregnant women to limit coffee consumption to 3 cups/d providing no more than 300 mg/d of caffeine to exclude any increased probability of spontaneous abortion or impaired fetal growth, and there is little evidence that coffee consumption increases the risk of cancer.
Antioxidants and atherosclerotic heart disease.
There is evidence that plaque stability, vasomotor function, and the tendency to thrombosis are subject to modification by specific antioxidants, and it is speculated that these mechanisms have an important role in the benefits of antioxidants.
A new proposed guidance system for beverage consumption in the United States.
- B. Popkin, L. Armstrong, G. M. Bray, B. Caballero, B. Frei, W. Willett
- MedicineAmerican Journal of Clinical Nutrition
- 1 March 2006
The panel ranked beverages from the lowest to the highest value based on caloric and nutrient contents and related health benefits and risks, and recommended that the consumption of beverages with no or few calories should take precedence over the consumptionof beverages with more calories.
Does vitamin C act as a pro‐oxidant under physiological conditions?
Although the data on protein oxidation in humans are sparse and inconclusive, the available data in animals consistently show an antioxidant role of vitamin C, both in the presence and absence of metal ions.
Antioxidant activity of tea polyphenols in vivo: evidence from animal studies.
Most promising are the consistent findings in animal models of skin, lung, colon, liver and pancreatic cancer that tea and tea polyphenol administration inhibit carcinogen-induced increases in the oxidized DNA base, 8-hydroxy-2'-deoxyguanosine.
Toward a new recommended dietary allowance for vitamin C based on antioxidant and health effects in humans.
The totality of the reviewed data suggests that an intake of 90-100 mg vitamin C/d is required for optimum reduction of chronic disease risk in nonsmoking men and women, suggesting a new RDA of 120 mg vitaminC/d.
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