An analysis of dietary supplements beneficial or hazardous
Of special note, consumption of excessive amounts of vitamin A during early pregnancy is potentially teratogenic.
Types of dietary supplements
Analytical techniques for other bioactives in supplements are further complicated because the active compound s are often unknown, and even when they are known, validated analytical methods may not exist for determining their content. Greger, J. Elfving, and U. Dickinson, A. Public Health Vallet, and D. While a small benefit for taking folic acid was found, researchers also found some adverse effects from supplementation. In a more limited study, Farris et al. Wilson, and A. Patients older than 65 were more likely to have trouble swallowing after taking vitamins or micronutrients of large pill size. The drug company is required to file information they get about side effects as well.
To be sure, some dietary supplements can be beneficial. Anderson, R. Selenium intoxication—New York.
Nutrients interact in the human body, so that relatively large intakes of one nutrient may affect the absorption, metabolism, or excretion of others and, therefore, affect their requirements.
Dietary supplements side effects
Rigorous criteria need to be developed to enable the scientific community to document, in a more systematic and comprehensive manner, potential benefits as well as toxicities from the use of dietary supplements. Stewart, J. Use of supplements containing high-dose vitamin A—New York State, Ehmann, and K. Intuitively many equate a dietary supplement in the USA with a NHP in Canada or a traditional herbal medicine in the European Union or a complementary medicine in Australia, but this is not the case. In fact, studies conducted more than 20 years ago indicate that between one-fourth and one-half of the elderly consumed supplements Davidson et al. The most frequently given reasons for taking supplements, selected from a list provided by the investigators, were "to prevent colds and other illnesses," "to give me energy," and "to make up for what is not in food.
Being aware and knowledgeable about any supplement—whether it is advertised as natural, herbal, or non-drug — is part of that care.
Benefits of Nutritional Supplements.
based on 51 review