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Centrum is an American brand of multivitamins produced by Haleon. It was designed by Dr. Ellenbogen's team, working at Lederle Laboratories , and was introduced in 1978. It has been owned by Wyeth , Pfizer , GSK .
Under the Dietary Supplement Health and Education Act (DSHEA), passed in 1994 in the United States, the Food and Drug Administration (FDA) is not responsible for testing the risks and efficacy of dietary supplements. Manufacturers are not required to present data on the effectiveness of multivitamins or disclose known side effects to the FDA.
Lutein (/ ˈ lj uː t i ɪ n,-t iː n /; [2] from Latin luteus meaning "yellow") is a xanthophyll and one of 600 known naturally occurring carotenoids.Lutein is synthesized only by plants, and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots.
As of 2024, the FDA requires manufacturers to display the contents and %DVs of certain nutrients on packaged food or supplement labels, with the instruction: [2] The Nutrition Facts label must list total fat, saturated fat, trans fat, cholesterol, sodium, total carbohydrate, dietary fiber, total sugars, added sugars, protein, and certain vitamins and minerals.
It is believed that lutein and zeaxanthin act synergistically to increase the yellow hue, whereas zeaxanthin is more powerful than lutein due to its larger chromophore. [21] Therefore, several companies use marigold extract where a percentage of lutein has been converted into meso - zeaxanthin in order to supplement broilers and hens with both ...
The Dietary Supplement Health and Education Act of 1994 is a 1994 statute of United States Federal legislation which defines and regulates dietary supplements. [4] Under the act, supplements are mainly unregulated, without proof of effectiveness or safety needed to market a supplement, as well as dietary supplements being classified as foods ...
Vitamin C supplements among other dietary supplements at a US drug store Vitamin C has a definitive role in treating scurvy, which is a disease caused by vitamin C deficiency. Beyond that, a role for vitamin C as prevention or treatment for various diseases is disputed, with reviews often reporting conflicting results.
A diet rich in anti-oxidants could allow for skin alterations such as acute acne or chronic non-infectious lesions, especially when the Th-1 immune process is persistently compromised by an overload of dietary antioxidant sources, like daily ingesting of vitamin C supplements, for example.
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