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Ketogenic and low-sugar diets for patients with cancer: perceptions and practices of medical oncologists in Canada.
Supportive Care in Cancer ( IF 3.1 ) Pub Date : 2020-02-23 , DOI: 10.1007/s00520-020-05361-9
Pamela N Klassen 1, 2 , Benjamin A Goldenberg 3 , Pascal Lambert 4 , Kathy Vagianos 5, 6 , Christina A Kim 3
Affiliation  

PURPOSE Many patients with cancer are interested in complementary therapies, including strategies such as reduced carbohydrate diets. Guidelines regarding the use of these diets during cancer treatment are lacking; therefore, we aimed to explore the perceptions and practices of medical oncologists in Canada regarding low-sugar and ketogenic diets. METHOD A cross-sectional, online multiple-choice survey was distributed to 206 Canadian medical oncologists. Questions explored frequency of patient interactions, oncologist perceptions of efficacy, advice given to patients, and concerns about side effects related to reduced carbohydrate diets. RESULTS Responses were received from 57 medical oncologists in seven of thirteen provinces and territories, with an overall response rate of 28%. Forty-nine percent of respondents were asked at least weekly about a low-sugar diet, and 9% about the ketogenic diet. Eighty-five percent supported the use of a low-added sugar diet in patients with diabetes or hyperglycemia, while conversely 87% did not support the use of a ketogenic diet for any of their patients undergoing active cancer treatment. Respondents felt either that a ketogenic diet was not effective (31%) or that the effect on cancer outcomes was unknown (69%). Ninety-six percent of respondents had concerns about a ketogenic diet for patients receiving active cancer treatment. CONCLUSION The role of reduced carbohydrate diets during cancer treatment is topical. Canadian oncologists are particularly reluctant to support a ketogenic diet for patients on active cancer treatment, with concerns about side effects and unknown efficacy. There may be a role for continuing medical education and institutional guidelines to inform these discussions with patients.

中文翻译:

癌症患者的生酮饮食和低糖饮食:加拿大医学肿瘤学家的看法和做法。

目的许多癌症患者对补充疗法感兴趣,包括减少碳水化合物饮食等策略。缺乏有关在癌症治疗期间使用这些饮食的指南;因此,我们旨在探讨加拿大医学肿瘤学家对低糖和生酮饮食的看法和实践。方法一项横断面在线多项选择调查已分发给206位加拿大肿瘤内科医生。问题探讨了患者互动的频率,肿瘤学家对疗效的认识,对患者的建议以及对与减少碳水化合物饮食有关的副作用的担忧。结果从13个省和地区中的7个省的57位医学肿瘤学家那里收到了答复,总答复率为28%。至少每周有49%的受访者被要求接受低糖饮食,有9%的被要求接受生酮饮食。85%的人支持在糖尿病或高血糖患者中使用低糖饮食,而相反,有87%的人不支持对接受过积极癌症治疗的任何患者使用生酮饮食。受访者认为生酮饮食无效(31%),或者对癌症结局的影响尚不清楚(69%)。96%的受访者担心接受主动癌症治疗的患者的生酮饮食。结论减少碳水化合物饮食在癌症治疗中的作用是局部的。加拿大肿瘤学家特别不愿意为接受积极癌症治疗的患者提供生酮饮食,因为它担心副作用和疗效未知。
更新日期:2020-02-23
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