Antioxidant supplement benefits -
Because the link between beta-carotene and an increased risk of lung cancer in smokers was known before this study started, current smokers were not assigned to groups that received beta-carotene; only nonsmokers and former smokers were included in those groups.
After 10 years of follow-up, lutein and zeaxanthin proved to be more effective than beta-carotene in reducing the risk of progression to advanced AMD. Beta-carotene increased lung cancer risk among former smokers, but lutein and zeaxanthin did not.
Are antioxidants helpful for preserving cognitive function? Two recent reviews looked at evidence related to this topic and found mixed results.
There was low-certainty evidence of better overall cognitive function after taking beta-carotene for 18 years and after taking vitamin C for 5 to 10 years, but no effects were seen after shorter periods of supplementation or after taking vitamin E.
The effects seen in the studies were small. Another review looked at studies of vitamin and mineral supplementation in people who already have mild cognitive impairment. Two of the studies involved antioxidants. In one study participants , high-dose supplementation with vitamin E for 3 years did not have a significant effect on progression of mild cognitive impairment to dementia.
In the other study, which involved combined vitamin E and C supplementation participants , the evidence was too low in quality for any conclusions to be reached about cognitive effects. Are antioxidant supplements safe? Not necessarily. Antioxidants can have harmful effects when taken at high doses.
These effects have been seen primarily in people at high risk, such as smokers. Vitamin E supplements may also interact with certain medicines, including anticoagulant or antiplatelet medicines.
High doses of vitamin C can cause diarrhea, nausea, and stomach cramps. Vitamin C supplements may also interact with cancer treatments, such as chemotherapy and radiation therapy, and they can worsen iron overload in people with hemochromatosis, a condition that causes the body to store too much iron.
Combinations of antioxidants may have undesirable effects. For example, in one study, a combination of vitamin E, vitamin C, selenium, and beta-carotene reduced the cholesterol-lowering effects of two drugs taken together for this purpose. Tips To Consider. If you have age-related macular degeneration, consult your health care providers to determine whether supplements of the types used in the AREDS or AREDS2 trials are appropriate for you.
If you are considering a dietary supplement, first get information on it from reliable sources. Keep in mind that dietary supplements may interact with medications or other supplements and may contain ingredients not listed on the label.
Your health care provider can advise you. Take charge of your health—talk with your health care providers about any complementary health approaches you use. Together, you can make shared, well-informed decisions. For More Information.
NCCIH Clearinghouse The NCCIH Clearinghouse provides information on NCCIH and complementary and integrative health approaches, including publications and searches of Federal databases of scientific and medical literature. Toll-free in the U. gov Email: info nccih.
Know the Science NCCIH and the National Institutes of Health NIH provide tools to help you understand the basics and terminology of scientific research so you can make well-informed decisions about your health. Explaining How Research Works NIH Know the Science: How To Make Sense of a Scientific Journal Article Understanding Clinical Studies NIH.
PubMed® A service of the National Library of Medicine, PubMed® contains publication information and in most cases brief summaries of articles from scientific and medical journals. Key References. Aune D, Giovannucci E, Boffetta P, et al.
Fruit and vegetable intake and the risk of cardiovascular disease, total cancer and all-cause mortality—a systematic review and dose-response meta-analysis of prospective studies.
International Journal of Epidemiology. Bjelakovic G, Nikolova D, Gluud LL, et al. Antioxidant supplements for prevention of mortality in healthy participants and patients with various diseases.
Cochrane Database of Systematic Reviews. Accessed at cochranelibrary. com on May 10, Chew EY, Clemons TE, Agrón E, et al. JAMA Ophthalmology. Evans JR, Lawrenson JG. Antioxidant vitamin and mineral supplements for preventing age-related macular degeneration.
com on March 22, Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration. Fan H, Han X, Shang X, et al. Fruit and vegetable intake and the risk of cataract: insights from the UK Biobank study.
Eye London. March 27, He FJ, Nowson CA, Lucas M, et al. Increased consumption of fruit and vegetables is related to a reduced risk of coronary heart disease: meta-analysis of cohort studies.
Journal of Human Hypertension. Lutfiyya MN, Chang LF, Lipsky MS. BMC Public Health. Mathew MC, Ervin A-M, Tao J, et al. Antioxidant vitamin supplementation for preventing and slowing the progression of age-related cataract. com on May 17, McCleery J, Abraham RP, Denton DA, et al.
Vitamin and mineral supplementation for preventing dementia or delaying cognitive decline in people with mild cognitive impairment. Milasav I, Ribarič S, Poljsak B. Antioxidant vitamins and ageing. Sub-cellular Biochemistry. National Eye Institute. Vitamin and mineral supplements for the primary prevention of cardiovascular disease and cancer.
Updated evidence report and systematic review for the US Preventive Services Task Force. Rutjes AW, Denton DA, Di Nisio M, et al. Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life.
The Nutrition Source, Harvard T. Chan School of Public Health. US Preventive Services Task Force, et al. Vitamin, mineral, and multivitamin supplementation to prevent cardiovascular disease and cancer.
US Preventive Services Task Force recommendation statement. Other References. Finley JW, Kong A-N, Hintze KJ, et al. Antioxidants in foods: state of the science important to the food industry.
Journal of Agricultural and Food Chemistry. Forman HJ, Zhang H. Targeting oxidative stress in disease: promise and limitations of antioxidant therapy. Nature Reviews. Drug Discovery. National Cancer Institute.
Antioxidants and Cancer Prevention. Accessed at cancer. Office of Dietary Supplements. Vitamin A and Carotenoids. Fact Sheet for Consumers. Accessed at ods. Vitamin C. Vitamin E.
Pisoschi AM, Pop A. The role of antioxidants in the chemistry of oxidative stress: a review. European Journal of Medicinal Chemistry.
Sies H. Oxidative stress: a concept in redox biology and medicine. Redox Biology. The AREDS2 Research Group Writing Committee: Chew EY, Clemons T, et al.
This is why it is important to have a varied diet. To obtain some specific antioxidants, try to include the following in your diet:. Vitamin C : Most fruits and vegetables, especially berries, oranges, and bell peppers. Vitamin E : Nuts and seeds, sunflower and other vegetable oils, and green, leafy vegetables.
Beta-carotene : Brightly colored fruits and vegetables, such as carrots, peas, spinach, and mangoes. Lutein : Green, leafy vegetables, corn, papaya , and oranges. Selenium : Rice, corn, wheat, and other whole grains, as well as nuts, eggs, cheese, and legumes.
Goji berries and many other food products that contain antioxidants are available to purchase online. The following foods are good sources of antioxidants. Click on each one to find out more about their health benefits and nutritional information:.
Lycopene is the antioxidant that gives tomatoes their rich red color. When tomatoes are heat-treated, the lycopene becomes more bio-available easier for our bodies to process and use. However, studies have shown that cauliflower, peas, and zucchini lose much of their antioxidant activity in the cooking process.
Keep in mind that the important thing is eating a variety of antioxidant-rich foods, cooked and raw. There is no set recommended daily allowance RDA for antioxidants, but a high intake of fresh plant-based produce is considered healthful. It is worth remembering that, while studies link the consumption of fruits and vegetables with better overall health, it is not clear whether how far this is due to the activity of antioxidants.
In addition, caution is needed regarding supplements. The National Institutes of Health NIH warn that high doses of antioxidant supplements can be harmful.
A high intake of beta-carotene, for example, has been linked to an increased risk of lung cancer in smokers. A high dose of vitamin E has been found to increase the risk of prostate cancer , and the use of some antioxidant supplements has been linked to a greater risk of tumor growth. Antioxidant supplements may also interact with some medications.
It is important to speak with a health provider before using any of these products. Overall, research has not proven that taking any particular antioxidant as a supplement or through a food can protect against a disease.
There may be some benefit for people at risk of age-related macular degeneration, but it is essential to seek advice from a doctor about whether to use supplements, and which ones to use. Free radicals have been linked to a range of diseases, including heart disease, cancer, and vision loss, but this does not mean that an increased intake of antioxidants will prevent these diseases.
Antioxidants from artificial sources may increase the risk of some health problems. As a result, it is important to seek out natural sources of antioxidants, in the form of a healthful diet.
Consuming fruits and vegetables has been linked to a lower rate of chronic diseases, and antioxidants may play a role. However, it is unlikely that consuming added antioxidants, especially in processed foods, will provide significant benefits.
In addition, anyone considering taking antioxidant supplements should speak to a health provider first. Read the article in Spanish. Free radicals are unstable atoms that can cause damage to cells and lead to illnesses and the aging process.
Exactly what impact do they have on the…. Eating a balanced diet is vital for healthful living. Figs contain protein, fiber, and iron, among many other nutrients. Learn more about the…. What are micronutrients? Read on to learn more about these essential vitamins and minerals, the role they play in supporting health, as well as….
Adding saffron supplements to standard-of-care treatment for ulcerative colitis may help reduce inflammation and positively benefit patients, a new…. My podcast changed me Can 'biological race' explain disparities in health? Why Parkinson's research is zooming in on the gut Tools General Health Drugs A-Z Health Hubs Health Tools Find a Doctor BMI Calculators and Charts Blood Pressure Chart: Ranges and Guide Breast Cancer: Self-Examination Guide Sleep Calculator Quizzes RA Myths vs Facts Type 2 Diabetes: Managing Blood Sugar Ankylosing Spondylitis Pain: Fact or Fiction Connect About Medical News Today Who We Are Our Editorial Process Content Integrity Conscious Language Newsletters Sign Up Follow Us.
Medical News Today. Health Conditions Health Products Discover Tools Connect. How can antioxidants benefit our health? Medically reviewed by Natalie Olsen, R.
Benefits Types Food sources Diet Risks Supplements. How we vet brands and products Medical News Today only shows you brands and products that we stand behind. Our team thoroughly researches and evaluates the recommendations we make on our site.
To establish that the product manufacturers addressed safety and efficacy standards, we: Evaluate ingredients and composition: Do they have the potential to cause harm?
Fact-check all health claims: Do they align with the current body of scientific evidence? Assess the brand: Does it operate with integrity and adhere to industry best practices? We do the research so you can find trusted products for your health and wellness. Read more about our vetting process.
At CBHS we help you manage your Antioxidant supplement benefits challenges. Benefist believe in Navigating through nutrition myths you the services, support Antiocidant tools you need to live your best life. Our Better Living Programs are available to support eligible members towards a healthier lifestyle. Each Better Living Program is subject to its own eligibility criteria. Contact us for more information and to confirm your eligibility for a program.
0 thoughts on “Antioxidant supplement benefits”