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Rudisill, Melinda FND430- Annoted Bibliography Artificial Sweeteners as MNT for weight loss and management Introduction Artificial sweeteners are commonly available and consumed in the belief that they assist with weight loss or maintenance of healthy body weight. However, the use of artificial sweeteners remains divisive because of data indicating a positive correlation between artificial sweetener use and weight gain, and possible risks associated with their long term use. Furthermore, as scientists retrospectively analyze data collected since their introduction, the widespread use of artificial sweeteners has correlated with the increased incidence of overweight and obesity. 3 Scientific literature was critically analyzed for information regarding the use of artificial sweeteners as MNT for weight loss and long-term weight management. Four literature reviews, one academy of nutrition and dietetics position paper, ten scientific investigations, and one interview were reviewed. Clinical trials on humans and epidemiologic studies were selected. The majority of long term studies performed are epidemiologic and use data collected from other research studies for their investigations. Studies are typically limited by a female gender bias. Conclusions support the current Academy of Nutrition and Dietetics position that artificial sweeteners may contribute to enhanced weight loss and maintenance as a part of a comprehensive diet program. MNT for weight loss and management should focus on decreasing overall energy intake and increasing physical activity according to 2010 Dietary Guidelines for Americans.1 Artificial sweeteners may assist some individuals in limiting energy intake by allowing them to consume non-nutritive substitutes for sugar-sweetened foods and vegetables. Rudisill, Melinda FND430- Annoted Bibliography Annotated Bibliography Position of the Academy of Nutrition and Dietetics: Use of Nutritive and Nonnutritive sweeteners. J Acad Nutr Diet. 2012; 112: 739-758. Key recommendation in DGA related to NNS is to control total energy intake and increase physical activity to manage body weight. Eating patterns that are low in energy density promote weight loss and maintenance. National Cancer institute in 2009 noted there was no clear evidence linking NNS use and cancer risk in humans. Grade I Conclusion statements indicate that use of aspartame and aspartame sweetened products as part of a comprehensive weight loss or maintenance program by individuals may be associated with greater weight loss and assist individuals with weight maintenance over time, and good evidence that aspartame use does not affect appetite or food intake in adults. Benton D. Can artificial sweeteners help control body weight and prevent obesity? Nutr Res Rev. 2005; 18: 63-76. This article reviews several studies investigating the long term effects of consuming artificial sweeteners. Benton critics that current research does not support the hypothesis that the longterm use of artificial sweeteners helps to prevent weight gain. The article presents several studies indicating that dietary fat is the macronutrient of interest in weight management. Evidence supports that those in acceptable weight ranges compensate for decreased energy intake when using artificial sweeteners, essentially negating the sweetener’s usefulness in limiting caloric intake. Yang Q. Gain weight by “going diet?” Artificial sweeteners and the neurobiology of sugar cravings. Yale J Biol Med. 2010; 83:101-108 This article reviews several large scale prospective cohort studies that found a connection between the use of artificial sweeteners and weight gain. Overall, the weight gains were small Rudisill, Melinda FND430- Annoted Bibliography when compared to control groups, but after analysis the researchers concluded they were statistically significant. Author reviews studies that explore how sweetness perception separated from energy intake offers only a partial activation of food reward pathways. As a result, subjects overeat to achieve full pleasure reward associated with eating. Several interventional studies conclude that artificial sweetener use does not reduce weight when used separate from interventions such as calorie restriction and exercise. Raben A, Vasilaras TH, Moller AC, Astrup A. Sucrose compared with artificial sweeteners: Different effects on ad libitum food intake and body weight after 10 wk of supplementation in overweight subjects. Am J Clin Nutr. 2002; 76:721-729. This paper describes a study where the participant’s diets were supplemented with either sucrose sweetened or artificially sweetened beverages and foods. Study results were not able to confirm that non-energetic sweeteners can increase appetite through stimulation of the brain and taste receptors. Weight loss in the artificial sweetener group was explained by the decrease in overall energy consumption. This decrease was achieved by the replacement of higher energy foods and drinks with the lower- energy sweetener supplements. Participants in this study were obese. Study is relevant because it indicates that overweight individuals may be able to substitute artificial sweeteners for sucrose in foods to successfully manage weight and prevent weight gain. Piernas C, Tate DF, Wang X, Popkin B. Does diet-beverage intake affect to dietary consumption patterns? Results from the Choose Healthy Options Consciously Everyday (CHOICE) randomized trial. Am J Clin Nutr. 2013; 97:604-11. Participants in this study replaced caloric beverages with either water or diet soda. Both experimental groups reduced consumption of protein and carbohydrates over time. Initially, the diet beverage group increased consumption of fats; however, they later decreased consumption Rudisill, Melinda FND430- Annoted Bibliography by percentages comparable to the water group at month 6. Both groups decreased energy intakes and improved dietary habits overtime. Noteworthy, is that the diet beverage group decreased more calories from caloric beverages and desserts than the water group. This is important because the study results do not support the hypothesis that consumption of artificially sweetened beverages increases preferences for sweet foods and beverages, at least in the short term. Fowler SP, Williams K, Resendez RG, Hunt KJ, Hazuda HP, Stern MP. Fueling the obesity epidemic? Artificial sweetened beverage use and long-term weight gain. Obesity J. 2008; 16: 1894-1900. Study investigated effects of artificially sweetened (AS) beverage consumption on long-term weight change by comparing participants in the San Antonio Heart study. Researchers found a positive dose-response relationship between AS beverage consumption and long term weight gain. Results indicate that AS beverage consumption may be directly or indirectly related to weight gain. Relevant source because study spanned 8 years and provides longer-term data on AS beverage consumption and weight change. Malik V, Schulze MB, Hu FB. Intake of sugar sweetened beverages and weight gain: a systematic review. Am J Clin Nutr. 2006; 8:274-288. Review examined thirty publications of cross-sectional, prospective, and experimental studies relating sugar sweetened beverage (SSB) intake and risk of weight gain. Authors concluded that the weight of experimental and epidemiologic evidence supports a positive relation between SSB consumption and weight gain. Artificially sweetened beverages could provide an alternative to SSBs and discourage consumption of sugary drinks that leads to weigh gain, thereby helping clients better maintain weight and weight loss. Rudisill, Melinda FND430- Annoted Bibliography Schulze MB, Manson JE, Ludwig DS, Colditz GA, Stampfer MJ, Willet WC, Hu FB. Sugar sweetened beverages, weight gain, and incidence of type 2 diabetes in young and middle-aged women. JAMA. 2004; 292(8): 927-934. Study found that frequent consumption of sugar sweetened may be associated with weight gain. Researchers suggest Public Health strategies to prevent obesity should be focused on reducing sugar-sweetened beverage consumption. Artificially sweetened beverages are an alternative choice that may prevent weight gain associated with sugar sweetened beverages. Mattes RD, Popkin BM. Nonnutritive sweetener consumption in humans: effects on appetite and food intake and their putative mechanisms. Am J Clin Nutr. 2009; 89:1-14. Several studies have concluded that the addition of nonnutritive sweetener (NNS) to food products providing little to no energy heightens appetite as opposed to consuming that food product independently. However, one study of similar structure replicated results using sodium chloride in soup, indicating that NNS may not be solely responsible for this effect. No appetite alteration is observed when NNS is consumed in food products providing energy. Research indicates that energy restriction is the essential element of MNT for weight loss and management. There is a lack of evidence supporting that the use of NNS in free living individuals results in improved weight loss or maintenance. Conversely, there is also a lack of evidence supporting the proposed mechanisms by which NNS may increase caloric intake and contribute to weight gain. Source is valuable in that it reviews several studies and indicates that NNS should not be the primary intervention in MNT for weight loss and management. It presents NNS as neither helpful nor harmful. Phelan S, Lang W, Jordan D, Wing RR. Use of artificial sweeteners and fat-modified foods in weight loss maintainers and always-normal weight individuals. Int J Obes (Lon). 2009; 33:1193-1190. Rudisill, Melinda FND430- Annoted Bibliography Study results revealed that weight loss maintainers use more artificial sweeteners and fatmodified foods to accomplish weight maintenance than individuals who have always been classified as normal weight. Artificially sweetened products may be useful for clients wishing to restrict calorie intake and maintain normal weight ranges without restricting consumption of foods and beverages traditionally sweetened with sugar. Shankar P, Ahuja S, Sriram K. Non-nutritive sweeteners: Review and Update. Nutrition. 2013; 29: 12931299. Article is a systematic review of several databases and websites to identify literature related non-nutritive sweeteners (NNS). It is a valuable resource because it analyzes multiple sources. Of the studies reviewed, there is a lack of evidence based research indicating a strong correlation between NNS use and weight loss or maintenance. Because the data is inconclusive recommendations are made for sweeteners, both nutritive and nonnutritive, to be used in moderation. Importance of calorie restriction is once again upheld. Review agrees with the position of the Academy and emphasizes that weight management depends more on total calorie restriction rather than avoidance of caloric sweeteners. Blackburn GL, Kanders BS, Lavin PT, Keler SD, Whatley J. The effect of aspartame as part of a multidisciplinary weight-control program on short- and long-term control of body weight. Am J Clin Nutr. 1997; 65(2): 409-418. Study randomly assigned obese woman to consume or abstain from aspartame during 16 weeks of a 19 week weight loss program. Study data suggests that addition of aspartame to a weightcontrol program that addresses diet, exercise, and psychosocial elements of health and nutrition may improve long-term maintenance of lost body weight. Study is limited by gender bias and short term follow up period. Rudisill, Melinda FND430- Annoted Bibliography Rodin J. Comparative effects of fructose, aspartame, glucose, and water preloads on calorie and macronutrient intake. Am J Clin Nutr. 1990; 51: 428-435. Subjects were given water, aspartame, glucose, or fructose preloads before meals in a randomized fashion. The aspartame and plain water preloads resulted in similar amounts of food consumed at meal time. Paper contradicts theory that artificial sweetener consumption may lead to increased appetite and intake, followed by subsequent weight gain. Anton SD, Martin CK, Han H, Coulon S, Cefalu WT, Geiselman P, Williamson DA. Effects of stevia, aspartame, and sucrose on food intake, satiety and postprandial glucose and insulin levels. Appetite. 2010; 55: 37-43. Study was performed over three separate days. Each day participants consumed preloads before their lunch and dinner meals and then monitored for their mealtime consumption. Preloads contained stevia, aspartame, and sucrose. Participants did not compensate by eating more at mealtime when they consumed the stevia or aspartame preload as compared to sucrose, and reported similar levels of satiety after the meal was completed. Study is limited by short time frame where subjects may not have been given adequate time to allow for dietary compensation. It may not adequately reflect effects of NNS use over time. Cantley LC. Cancer, metabolism, fructose, artificial sweeteners, and going cold turkey on sugar. BioMed Central. 2014; 12:8. This is an interview with a distinguished researcher and current director of the new Cancer Center at Weill Cornell Medical College and New York- Presbyterian Hospital. The interviewee discusses how artificial sweeteners cause a discrepancy in the brain between sweetness tasted and amount of glucose consumed. Addiction to sweetness is increased and dietary compensation follows. Source coincides with other sources supporting theory that artificial Rudisill, Melinda FND430- Annoted Bibliography sweeteners may not be and effective solution for long term weight management because they encourage sugar craving and addiction. Whitehouse Cr, Boullata J, McCauley LA. The potential toxicity of artificial sweeteners. Workplace Health Saf. 2008; 56(6): 251-259. Source is an article written by nurses to educate healthcare professionals on how to advise clients regarding the use of artificial sweeteners. Research is inconclusive regarding risks of artificial sweetener use and occupational nurses are advised to educate clients regarding potential risks and benefits of artificial sweetener use. More importantly, nurses are encouraged to promote exercise and healthy eating habits to clients. Source supports the hypothesis that artificial sweeteners should not be used alone as MNT for weight loss and management, but may be beneficial to some clients in conjunction with other interventions.