Examination of the Efficacy of Dietary Supplements

Examination of the Efficacy of dietetic Supplework forcetsWhat has led to the popularity of dietetical supplements and is their success deserved?Surname LU First name YIXUANIntroductionThe definitions of dietetic supplements atomic spell 18 varied from different countries which specify the scope of the term differently, and this merchant shipvass presents a logical common definition of dietetical supplements. Dietary supplements, the forms of which are usu eithery tablets, pills, powders, capsules or liquid preparations, are oral products live withn at recommended dosage in addition to normal fodder intake. It contains one or to a greater extent kind of intellectual nourishment which is derived from viands products such as vitamins, minerals and line elements. Additionally herbs or other botanicals are included in US definition.The sales of dietetic supplements show that the popularity of dietary supplements among all fields and all ages of populate has been rising d ramatically in a few decades. In the US, sales of dietary supplements in 2001 were ab let on $17.8 billion (Nutrtion Journal. 2011), and as account by the latest statistics, dietary supplements annual sale has gaind to healthful-nigh $30 billion (MD, 2014).In this essay, first of all, I pass on elaborate the reason why nutrient for thought supplements let so popular among ordinary public, fol offseted by a detailed illustration of the benefits of dietary supplements as supporting. wherefore or so controversial issues raised by such popularity will be revealed, and the risks of winning dietary supplements are shown subsequently. In the end, I will hand over slightly suggestions to consumers when fetching dietary supplements.The popularity of food supplementsThere are some a nonher(prenominal) an(prenominal) factors accounting for the popularity of food supplements. Ransley et al. (2001) argue that four main driving forces apparent motion this popularity. Firstly, the modern diet seems can hardly meet the strict requirement of health and life of pile today particularly in hurt of nutrition, and the wishing of the categories and quantities of nutrients can be supplied by victorious dietary supplements. Secondly, eating dietary supplements are considered to be a remedy or precaution of aging-related unhealthinesss, which makes them instead popular among oldish people. Thirdly, in consideration of the increasing worth of medicines and the inconvenience of seeing a doctor, taking dietary supplements directly is more attractive to consumers. Lastly, with the improvement of living standard, people are more come to about their own health. Therefore he desirable features of food supplements can get peoples attention boffoly.The benefits of taking dietary supplements fetching right amount of food supplements can assure an adequate dietary intake of essential nutrients. Although we can get all the vitamins and minerals we need as long as we advance a well-balanced diet each day, it is not easy to follow this good habit strictly especially among commuters and teenagers. Therefore, Webb (2006) claims that using dietary supplements, such as multivitamins and cod liver anoint, commonly helps ensuring the adequacy of nutritionally diet. As Walji (1995) and Mason (2001) point out, having irregular meals is quite common and this whitethorn cause nutritional deficiency. Besides, improper methods of preserving and cooking food whitethorn result in the loss of some nutrients from food, particularly those fine and unstable vitamins, which may cause a phenomenon that people eating a lot but still undernourished (Walji, 1995). Additionally, the amount of nutritional requirements set out from person to person, even the nutrient containing in the standard diet may still be either exceed or inferior to some people. Therefore having a wholesome diet with the addition of supplements personalisedly is a good way to ensure the correct amount of nutrients keeping our soundbox in optimum condition. Besides, food supplements do shoot a omnipotent psychological effect on consumers. This is shown in a research that many consumers use supplements occasionally and take them only when the spirits are low or when they are stressful (Ransley, et al., 2001).Another benefit of taking dietary supplements is the efficacy of preventing deficiency diseases (Webb, 2006 Mason, 2001). In order to cure some diseases, people may need to increase demand for a particular nutrient in certain medical conditions or other circumstances. Take vitamin D deficiency as an example, vitamin D has the function of promoting intestinal tract tightness of calcium. Webb (2006) points out that the main source of vitamin D inside body comes from exposing the strip to the ultraviolet rays in the sunshine. People who spends less than the necessary amount of sentence under the sunshine, seems to be more vulnerable to vitamin D deficiency. We bb (2006) alike notes that the lack of vitamin D is an essential contributing factor in the development of osteoporosis among old people. Combining with the fact that the ability of converting sunlight into vitamin D in the senile will decrease as they grow older, taking related supplements become more necessary and functional. COMA (1991) recommended that vitamin D supplements should be taken by all aged people only if they are regularly assailable to the sunlight with reasonable amount of time (Webb, 2006).The usage of dietary supplements also contributes to avoiding other diseases or illness such as cardiovascular diseases, cancers or skin problems. Differentiating from the supplements compensateing nutritional deficiencies, food supplements for other diseases may have long-term positive effects on physical condition (Webb, 2006). For instance, fish oil supplement is well known for its effect on mall diseases. A conclusive study demonstrating the function of fish oil has be en done by Burr et al. (1989). He tested the effects of dietary intervention in the secondary prevention of myocardial infarction (MI) (Burr et al. 1989, p757). The result shows a to the highest degree 30% decrease in total mortality among the tested men who were suggested to eat oily fish (or fish oil capsules if some people did not eat fish) during the two years study (Burr et al. 1989). Although some variables may have not considered in the study, it is still a comparatively successful experiment verifying the efficacy of fish oil which is the main hard-hitting ingredient in fatty fish.Controversial problems pursuit with the popularityWith the growing popularity of taking food supplements, many controversial problems arise subsequently. What is the standard direction of taking dietary supplements? Are there adequate regulations of dietary supplements market especially in terms of herbs and mineral? whether dietary supplements make a worthwhile contribution to a healthy diet Al l these issues point to the risks of taking dietary supplements.The risks of taking dietary supplementsThere are so many unknown risks of eating dietary supplements, one of the main risks is that it may be harmful if people taking supplements in wrong dosage. If people take over-dose of specific supplements in the diet, such behavior may trigger the food-drug interactions (Hans, et al., 2001). two the FDA (Food and Drug Administration in the US, 2014) and Webb(2006) state that the excessive use of some supplements, such as vitamin and iron, may cause some health risks and unnecessary effects before, during and after surgery. For example, large -carotene supplements are known for the efficacy of preventing heart disease and cancer, but some studies show that such supplements may have counteractive. Rapala et al. (1997) reported increased death rates from coronary heart disease in those subjects (smokers) given -carotene supplements compared with those receiving either the placebo o r vitamin E supplements (Webb, 2006). In addition, the reverse supplement hypothesis claims that some people who already have decent nutrition are more likely to taking supplements (Ransley, et al., 2001). Here is the license provided by the Womens Cohort Study. In this study, one of the swearants took 9g of vitamin C from supplements and an particular 90mg from another vitamin preparation. The intake of these two was more than 200 times than the RNI (Recommended nutritious Intakes) and this is the amount without taking her dietary intake into account (SFL, et al., 1998). The above-mentioned bear witness illustrates that consumers taking wrong dosage of food supplements may also be harmful.Another risk of taking dietary supplements is the lack of informed advices. As Blendon et al. (2001) indicate that, there is a lack of connection and trust betwixt physicians and consumers. Because consumers do not believe in the information about supplements from physicians, as well when physicians notice some problems about dietary supplements, they do not inform the consumers. Therefore, consumers prefer to take self-meditation, such as using dietary supplements to treat their illness, which is more convenient and have private space. thus far, when consumers need to ensure the workaday intake, they have to search sources of advice from some unidentified places, such as internet, dietary supplement shop or the media. This approach to self-meditation will carry risks and check proof is that intakes of some supplements can be toxic to health and will cause serious adverse effects such as diarrhoea (vitamin C) and flushing (niacin) (Ransley, et al., 2001, p12).Furthermore, many benefits of dietary supplements are still unknown and unproved, so taking dietary supplements should be very cautious. The FDA (2014) illustrates that many supplements contain active ingredients which may cause strong biological effects in the body and increase risks of health in some case s. Therefore, the behavior of some consumers, using dietary supplements instead of prescription medicines, is obvious unwise (U.S.FDA, 2014). Since dietary supplements are uncomplete food additives nor drugs, they are in a special status which was realized by the Dietary Supplement Health and Education Act (Hunrer and Trum, 1999). Obviously, it is not sensible to replacing the prescription medicines to supplements. In terms of herbs, herbal products do have some clinically proven benefits, but there are more facts illustrate its potential of containing toxic substances, especially regarding to the interaction with drugs (Halsted, 2003). shutdownFrom what the essay has mentioned above, dietary supplement has a close relationship with our fooling health. It is clear that the benefits of dietary supplement contribute to its popularity mainly. Various number of food supplements added in our daily intakes suitably enable us a nutritional-balanced diet. However the risks of taking diet ary supplements are non-ignorable, which not only imply the dwell of the improvement of dietary supplements but also remind us need of taking supplements cautiously. In addition, some benefits of eating food supplements as well as the risks may be missing in this essay.It is not bearing to say the popularity is good or not directly. In my view, the increasing number of people taking dietary supplements reflects a high awareness of personal health among publics. Meanwhile eating dietary supplements wisely is also necessary.To keep the balance of dietary supplement, several measures should be taken by the government. much(prenominal) as strengthen the supervision of the production and sales of dietary supplements, chip in detailed guideline of the usage of supplements and cultivate specialists in the field of food supplements. Apart from some regulations should be improved by the authorities, what we should do is be a savvy supplement user, thinking twice when purchase food suppl ements, reading the instructions of the supplements carefully before taking these products, finding out the relevant benefits of them in order to deepen the understanding of preparations and noticing the deficiency symptoms and following the measurement with cautious.ReferencesBlendon, R. J. et al., 2001. Americans Views on the Use and Regulation of Dietary Supplements. JAMA Internal Medicine, 26 March, pp. 805-810.Burr, et al., 1989. EFFECTS OF CHANGES IN FAT, FISH, AND FIBRE INTAKES ON DEATH AND MYOCARDIAL REINFARCTION feed AND REINFARCTION TRIAL (DART). The Lancet, 2(8666), p. 757761.Eaglstein, W. H., 2014. What Are Dietary Supplements and Nutraceuticals?. In The FDA for Doctors. s.l. customs duty International Publishing, pp. 25-27.Halsted, C. H., 2003. Dietary supplements and functional foods 2 sides of a coin?. American Society for clinical Nutrition, April, pp. 1001S-1007S.Hans, V., Eussen, S.R.B.M., Loveren, H. v. Rompelberg, C. J., 2001. Functional foods and dietary suppl ements Products at the interface between pharma and nutrition. European Journal of Pharmacology, September, pp. S2-S9.Hunrer Trum, B., 1999. The New Dietary Supplement Label. Consumers Research Magazine, 82(9), p. 27.Mason, P., 2001. Dietary Supplements. second ed ed. s.l.LondonPharmaceutical Press.MD, W. H. E., 2014. What Are Dietary Supplements and Nutraceuticals?. In The FDA for Doctors. s.l.Springer International Publishing, pp. 25-27.Webb, P.G., 2006. Dietary supplements and functional foods. 1st ed. ed. s.l.Oxford Blackwell.Ransley, J., Donelly, J. Read, N., 2001. Food and Nutritional Supplementstheir function in health and disease. Berlin London Springer, c2001.SFL, K., JE, C., MT, C. JH, B., 1998. Supplementary issues for women. Nutrition Bulletin, Volume 23, pp. 197-202.U.S.FDA, 2014. defend and Promoting Your Health. OnlineAvailable at http//www.fda.gov/Food/DietarySupplements/default.htmAccessed 27 Aug 2014.Walji, H., 1995. Vitamins, minerals and dietary supplements a authorized guide to healthy eating. s.l.London Headway.1