Which vitamins function as antioxidants?
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1.7K Citations | Many dietary compounds have been suggested to be important antioxidants: The evidence for a key role of vitamins E and C is strong, but that for carotenoids and related plant pigments is weaker. |
65 Citations | Antioxidant vitamins in vegetables fall into the category of phytochemicals, but other compounds, such as lycopene, may be as important (Di Mascio et al., 1989; Giovannucci, 1999). |
| The study constitutes a starting point for more detailed study of the antioxidant activity of water-soluble vitamins and their analogues, especially in view of the use of vitamins for food fortification and as nutritional supplements. | |
| ### Antioxidant Vitamins The oxidative modification hypothesis of atherosclerosis is that oxidation of low-density lipoprotein cholesterol (lipid peroxidation) allows it to accumulate in artery walls and promote atherosclerosis.4 This has prompted several studies of the effect of reducing oxidative stress by means of antioxidant vitamins (beta-carotene; vitamins A, C, and E) in preventing stroke. | |
| However, it has not been proven whether antioxidant vitamins, taken as dietary supplements, provide the same level of protection as a diet that is rich in fruit and vegetables. | |
104 Citations | The possible sites at which these compounds might act as significant dietary micronutrient antioxidants are: (1) i... |
73 Citations | In general, phenolic acids were found to be more effective antioxidant than vitamins. |
53 Citations | For this reason regular consumption of antioxidant vitamins supplements cannot yet be advocated as a healthy lifestyle trait. |
36 Citations | Antioxidant vitamins are often given haphazardly; they are not very efficient and potentially detrimental. |
| Therefore, it is imperative to include antioxidants in our diets. | |
20 Citations | Antioxidants may be of different types viz. |
38 Citations | These findings may be related to the general health benefits which are associated with the antioxidant nature of these vitamins. |
Related Questions
Which vitamins function as antioxidants?4 answersVitamin C, vitamin E, carotenoids, vitamin K, vitamin D, niacin, pyridoxine, and riboflavin are all vitamins that function as antioxidants. These vitamins have been shown to reduce oxidative stress and prevent or improve disease conditions by reducing lipid peroxidation, protein carbonylation, and advanced glycated end-products. Ascorbic acid (vitamin C) is particularly known for its strong antioxidant properties and its ability to stimulate the biosynthesis and activation of antioxidant enzymes. Vitamin E, specifically α- and γ-tocopherols, are also important antioxidants in nature and protect polyunsaturated fatty acids from free radical attack. Further research is needed to fully understand the antioxidant mechanisms and potential of these vitamins.
What are some of the most important antioxidants?5 answersAntioxidants are natural or synthetic molecules that help prevent or reduce cell damage caused by reactive oxygen species (ROS). Some important antioxidants include ascorbic acid, polyphenols, thiols, butylated hydroxytoluene, butylated hydroxyanisole, propyl gallate, and tert-butylhydroquinone. Other recognized antioxidants are resveratrol, lycopene, lutein, zeaxanthin, curcumin, and astaxanthin. Beta carotene, Lutein, Vitamin A, Vitamin C, Vitamin E, and Lycopene are also important antioxidants. Polyphenols, found in vegetables and fruits, are significant plant compounds with antioxidant activity. Vitamins E and C are very important antioxidants. Plants, particularly medicinal plants, are a significant source of beneficial antioxidants.
What are the function of vitamins in humans?5 answersStep 1:
Vitamins play a crucial role in various biological functions in humans, including enzymatic catalysis, energy generation, immune system regulation, and maintenance of healthy tissues and bones. They are essential micronutrients that cannot be synthesized in sufficient quantities by the body and must be obtained from the diet or synthetic sources. Deficiency of specific vitamins can lead to various diseases and health issues, such as neuropathy, dermatitis, anemia, scurvy, and impaired immune responses. Additionally, vitamins have been found to have specific functions in controlling immune cells and their associated responses.
Step 3:
Vitamins are essential micronutrients that modulate enzymatic catalysis, energy generation, and immune system regulation, as well as contribute to the maintenance of healthy tissues and bones. They cannot be synthesized in sufficient quantities by the body and must be obtained from the diet or synthetic sources. Deficiency of specific vitamins can lead to various diseases and health issues, such as neuropathy, dermatitis, anemia, scurvy, and impaired immune responses. Additionally, vitamins have specific functions in controlling immune cells and their associated responses.
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