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1.
Abstract

Maternal dietary habits influence maternal and foetal health, representing a pathway for intervention to maximise pregnancy outcomes. Advice on energy intake is provided on a trimester basis, with no additional calories required in the first trimester and an additional 340?kcal?d?1 and 452?kcal?d?1 needed for the second and third trimesters. Energy intake depends on pre-gravid body mass index (BMI); underweight women are recommended an increase of 150, 200 and 300?kcal?d?1 during the first, second and third trimester, normal weight women an increase of 0, 350 and 500?kcal?d?1 and obese women an increase of 0, 450 and 350?kcal?day?1. The recommendations for carbohydrate and protein intake are 175?g?d?1 and 0.88–1.1?g?kgBM?d?1, with no change to fat intake. The number of pre-gravid obese women is rising; therefore, we need to regulate weight in women of childbearing age and limit gestational weight gain to within the recommended ranges [overweight women 6.8–11.3?kg and obese women 5.0–9.1?kg]. This can be achieved using nutritional interventions, as dietary changes have been shown to help with gestational weight management. As pregnancy has been identified as a risk factor for the development of obesity, normal weight women should gain 11.5–16.0?kg during pregnancy. While some research has shown that dietary interventions help to regulate gestational weight gain and promote postpartum weight loss to some extent, future research is needed to provide safe and effective guidelines to maximise these effects, while benefitting maternal and foetal health.  相似文献   
2.
高校学生选修营养与食品卫生类课程的人数较多,其目的是为健康而改变行为。因此,在开展选修课教学过程中,可嵌入健康教育的思想,通过课前调查、课中交流了解学生的实际问题,有针对性地开展教学活动,并在教学中通过师生互动、同伴教育等形式巩固正确思想,纠偏不当行为,在完成选修课教学内容的同时,实现健康教育的目标。  相似文献   
3.
文章具体论述了食品营养与检测专业的实习情况,阐明实习这一重要教学环节对于学科建设、专业方向调整以及对学生的思想教育起到积极的作用.  相似文献   
4.
苦荞营养粉的研制   总被引:1,自引:0,他引:1  
本文采用苦荞面粉、大豆粉、黄精、甘草和安赛蜜,通过适宜的工艺制作,得到苦荞含量高、口感舒适、加工方便的苦荞营养粉。  相似文献   
5.
讨论了基于营养动力学的捕食.食饵模型的最优控制,得到了使资源管理者获得最大利润并使种群系统持续下去的最优控制率.  相似文献   
6.
对番红花植株不同施磷水平的试验结果表明:不同磷水平时番红花植株N、P、K、Mg、Mn、Fe等矿质元素的吸收运转均有显著影响;低磷不利于番红花植株矿质元素地上部向地下部的运转,造成番红花新球茎矿质元素含量普遍偏低;随着施磷水平的降低,蛋白氮含量明显减少,蛋白质合成受阻,核酸及糖分减少,因而新球茎品质不高。  相似文献   
7.
ABSTRACT

Introduction: Low energy availability (LEA) results in physiological adaptations, which can contribute to unfavourable health outcomes. Little information exists on risk of LEA in active individuals competing in different sports or levels of competition. The aims of this study were to (1) identify risk of LEA in females competing at different levels of competition and (2) investigate associations between risk of LEA, illness and dietary habits. Methods: The validated questionnaire, ‘Low Energy Availability in Females Questionnaire’ was distributed online (November 2016–February 2017) to assess risk of LEA. Twenty-nine additional questions collected information on demographics, illness history and dietary habits. Participants were considered at risk of LEA if they attained a score of?≥?8 and were grouped into: (i) international; (ii) provincial/inter-county; (iii) competitive; and (iv) recreationally active. Chi-square and logistic regression analyses were used to explore differences between those at risk or not at risk of LEA. Results: Risk of LEA was identified in 40% (n?=?331) of 833 participants and was 1.7 and 1.8 times more likely in international and provincial/inter-county athletes compared to those who were recreationally active (International: odds ratios (OR) 1.68, 95% confidence intervals (95%CI) 1.12–2.54; Provincial/inter-county: OR 1.83, 95%CI 1.20–2.77). In participants at risk of LEA, missing >22 days of training during the previous year due to illness occurred 3 times more frequently (OR 3.01, 95%CI 1.81–5.02). Conclusion: Risk of LEA was widespread in this heterogeneous sample. Awareness of LEA and the development of appropriate energy management strategies to ensure athlete health across levels of competition are required.  相似文献   
8.
通识课《营养学》四年约1300名学生的全英文教学实践表明,学生的英语水平是限制营养学教学效果的主要因素,但针对学生学习兴趣和需求进行课程内容的设计能够极大地调动学生学习的积极性,提升学习效果。建议学校引导学生在通识课程选修前,系统地了解所选课程的性质、授课对象、课程目标、课程大纲等,使课程的选修更具有针对性,提高教学的效果。  相似文献   
9.
对近年国内公开发表的赛艇队员生化指标研究的论文进行综述。结果发现:目前对赛艇队员血色素、尿素氮、肌酸激酶、血乳酸等生化指标研究已有较多科研成果,对免疫和内分泌系统,以及运动员选材、运动营养等方面综合考虑的生化指标研究也有更多地关注和研究。  相似文献   
10.
In Western societies scientists are increasingly expected to seek media exposure and cooperate with industry. Little attention has been given to the way such expectations affect the role of scientific experts in society. To investigate scientists’ own perspectives on these issues eight exploratory, in-depth interviews were conducted in Denmark with reputable nutrition scientists. Additionally, eight interviews were held with ‘key informants’ from the field of nutrition policy. It was found that nutrition scientists experience two dilemmas: first, between their aspiration to make a collective impact on public health and the powerful incentives of each to appear frequently in the media with new messages; second, between their need to cooperate with the food industry for financial reasons and their fear that this may compromise their independence and scientific integrity. It is argued that the dilemmas identified in this study should be dealt with openly by the relevant groups of scientists.  相似文献   
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