The most common types of dietary supplements used by all age groups were multivitamin and mineral supplements, followed by vitamin D and omega-3 fatty acid supplements. Evidence suggests that some supplements may improve health in different ways. The most popular nutritional supplements are multivitamins, calcium, and vitamins B, C and D. Calcium contributes to bone health, and vitamin D helps the body absorb calcium.
Vitamins C and E are antioxidant molecules that prevent cell damage and help maintain health. The new USPSTF guidelines don't apply to people who are pregnant or trying to get pregnant, said Dr. Natalie Cameron, co-author of the JAMA editorial, general internal medicine instructor at Feinberg. Jenny Jia, co-author of the JAMA editorial that studies the prevention of chronic diseases in low-income families through lifestyle interventions, said that healthy eating can be a challenge when the United States' industrialized food system doesn't prioritize health.
The working group specifically recommends not taking beta-carotene supplements because of the possible increase in the risk of lung cancer, and recommends not taking vitamin E supplements because they have no net benefit in reducing mortality, cardiovascular disease or cancer. Money spent on supplements could be used to add high-nutrition foods to their diets, he added, which is more likely to promote overall health. CRN data also evaluated where supplement users buy products online and found that 80% of users had shopped on Amazon in the past 12 months. There is a clear role of some dietary supplements, such as folic acid, in reducing the risk of birth defects.
Duffy MacKay, a spokesperson for the supplement industry, said that taking a multivitamin and other supplements is part of a healthy lifestyle. Most available scientific data does not support the role of dietary supplements in improving health or preventing disease. In this case, the survey has a credibility interval of plus or minus 2.5 percentage points for all respondents and plus or minus 2.9 percentage points for supplement users. The second most popular category are specialty supplements (40 percent), followed by herbal and botanical products (39 percent), sports nutrition supplements (28 percent) and weight management supplements (17 percent).
However, Northwestern Medicine scientists say that for American women who are not pregnant and who are otherwise healthy, vitamins are a waste of money because there is not enough evidence that they help prevent cardiovascular disease or cancer. These include glucosamine (for joint pain) and herbal supplements such as echinacea (immune health) and flaxseed oil (digestion). Cameron said that, in addition to talking about vitamin supplementation, working with patients to optimize cardiovascular health before pregnancy is an important component of prenatal care. The American Osteopathic Association (AOA) represents more than 145,000 osteopathic doctors (DOs) and students of osteopathic medicine; promotes public health; promotes scientific research; is the primary certifying body for DOs; and is the accrediting agency for schools of osteopathic medicine.
Because supplements are regulated as foods, not as drugs, the FDA does not evaluate the quality of supplements or evaluate their effects on the body. Linder noted that people who are vitamin deficient can still benefit from taking dietary supplements, such as calcium and vitamin D, which have been shown to prevent fractures and perhaps falls in older adults. About the AOA The American Osteopathic Association (AOA) represents more than 145,000 osteopathic doctors (DOs) and students of osteopathic medicine; promotes public health; promotes scientific research; is the primary certifying body of the DOs; and is the accrediting agency for schools of osteopathic medicine.