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Beta-carotene (β-carotene) is a precursor to vitamin A, an essential vitamin at any age, including for cellular health and vision. It is also a powerful antioxidant that may reduce the risk of cancer. Intervention trials with supplemental beta-carotene have observed either no effect or a harmful effect on lung cancer risk. Because food composition databases for specific carotenoids have only become available recently, epidemiological evidence relating usual dietary levels of these carotenoids with lung cancer risk is limited. Doctors don’t recommend beta-carotene to smokers because it puts them at risk of developing lung cancer. Available beta-carotene statistics and facts reveal that eating a balanced diet of fruits, vegetables, and lean meats enriched with olive oil, spices, and nuts is the best way to obtain the perfect amount of beta-carotene our body needs.

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Beta-carotene (β-carotene) is a precursor to vitamin A, an essential vitamin at any age, including for cellular health and vision. It is also a powerful antioxidant that may reduce the risk of cancer. Intervention trials with supplemental beta-carotene have observed either no effect or a harmful effect on lung cancer risk. Because food composition databases for specific carotenoids have only become available recently, epidemiological evidence relating usual dietary levels of these carotenoids with lung cancer risk is limited. During the AREDS trial, two large trials funded by the National Cancer Institute found that beta-carotene may increase lung cancer risk among people who smoke.

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Consuming Tomato Sauces Obtained from Tangerine or High-Beta-Carotene and Risk of Non-Hodgkin Lymphoma,” Cancer Causes and Control 22, no. Body mass index and prostate cancer risk in the Carotene and Retinol Efficacy Trial.

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Beta carotene has been associated with a decreased risk of human cancer in many studies employing dietary questionnaires or blood measurements, and it has had protective effect Use of beta-carotene has been associated with an increased risk of lung cancer in people who smoke or who have been exposed to asbestos. One study of 29,000 male smokers found an 18% increase in lung cancer in the group receiving 20 mg of beta-carotene a day for 5 to 8 years. 1999-11-22 · Men with the lowest blood levels of beta-carotene at the start of the study who took supplements had a 32% reduction in risk of prostate cancer. Beta-carotene supplements did not affect the risk of Investigators conducting the Beta Carotene and Retinol Efficacy Trial (CARET) in the United States, a large study of the combination of beta carotene and vitamin A as preventive agents for lung cancer among high-risk men and women, terminated the intervention in January 1996 after an average of four years of treatment and told the 18 314 participants to stop taking their vitamins. OBJECTIVE: The etiology of epithelial ovarian cancer is unknown. Prior work suggests that high dietary beta-carotene intake is associated with a decreased risk of this tumor although this association remains speculative.

Beta-carotene supplements have proven problematic for other forms of cancer. In 1994, Finnish researchers stopped a clinical trial when they learned to their horror that giving men who smoked beta-carotene supplements made them more likely to develop lung cancer. This was even true when blood tests indicated that men who smoke have unusually It is true that as super source of antioxidant, beta-carotene could assist in fighting the development of cancerous cells but in some conditions, beta-carotene will cause the opposite effect such as for those who are smoking, consuming beta-carotene could be dangerous because could increase the risk the development of cancerous cells that will lead to lung and prostate cancer. Vitamins C and E and Beta Carotene Supplementation and Cancer Risk: A Randomized Controlled Trial. JNCI Journal of the National Cancer Institute. Oxford University Press (OUP); 2008; 101:14-23 10.1093/jnci/djn438 Beta-carotene and cancer risk a trial in smokers using biomarkers as intermediate endpoints Proefschrift ter verkrijging van de graad van doctor aan de Rijksuniversiteit te Maastricht, Beta-carotene is a provitamin that gives color to plants like apricots, carrots, peppers, and sweet … 2009-03-04 But some early research suggests that taking beta-carotene, vitamin E, and selenium might reduce the risk of stomach cancer in underfed Chinese people who are at high risk. Also, taking beta-carotene might stop cancer-like lesions in the stomach from turning into cancer.
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Doctors don’t recommend beta-carotene to smokers because it puts them at risk of developing lung cancer. Available beta-carotene statistics and facts reveal that eating a balanced diet of fruits, vegetables, and lean meats enriched with olive oil, spices, and nuts is the best way to obtain the perfect amount of beta-carotene our body needs. Cancer risk may be lower in those who consume beta-carotene containing foods. High blood concentrations of beta-carotene and other carotenoids, (plant pigments found in carrots, sweet potatoes, spinach, kale, collard greens, papaya, bell peppers, tomatoes), have been linked to a lower risk of cancer, especially lung, mouth, throat, and cervical cancers. Eating more beta-carotene in the diet is linked to a lower risk of breast cancer in high risk, pre-menopausal women.

Doctors don’t recommend beta-carotene to smokers because it puts them at risk of developing lung cancer. Available beta-carotene statistics and facts reveal that eating a balanced diet of fruits, vegetables, and lean meats enriched with olive oil, spices, and nuts is the best way to obtain the perfect amount of beta-carotene our body needs. Cancer risk may be lower in those who consume beta-carotene containing foods.
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Förväxlingsrisk. • Morotsextrakt  Effects of Pomegranate Juice on Hormonal Biomarkers of Breast Cancer Risk. Includes vitamins A, B1, B2, B3, and B6, E, beta-carotene, folate, phosphorus,  Humanstudier[6] har visat att istället för att förebygga cancer, har Beta Carotene on the Incidence of Lung Cancer and Other Cancers in Male  ökad frekvens av bröst- och livmodercancer.

Plasma carotenoids, vitamin C, tocopherols, and retinol and

1996 Jun;22(3):161-3. Beta carotene and cancer: risk or protection? Vainio H. PMID: 8837260 [PubMed - indexed for MEDLINE] Beta‐carotene supplementation has not been shown to have any beneficial effect on cancer prevention.

浏览句子中cancer risk的翻译示例，听发音并学习语法。 Supplements of beta-carotene, vitamin A, and vitamin E have no positive effect on mortality rate or  Alcohol intake and ovarian cancer risk: A pooled analysis of 10 cohort studies. Byers T. Beta-carotene intake and risk of postmenopausal breast cancer. av PO Darnerud · Citerat av 2 — VERKET. Rapport 3 - 2014. Colorectal cancer-incidence in relation to consumption of red and processed meat by Per Ola Darnerud and Nils-Gunnar Ilbäck  av E PUKKALA · Citerat av 23 — riskfaktorer för cancer, att kunna förebygga cancer, att diagnostisera cancer hos patienter så tidigt beta carotene on the incidence of lung cancer and other.