Fortification

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  • 文章类型: Journal Article
    背景:不安腿综合征(RLS)是一种令人不快的疾病,会影响患者的生活质量。其患病率在经前综合征(PMS)女性中增加。维生素D通过对钙稳态和神经递质的影响在女性生殖中起关键作用。我们旨在评估维生素D3强化乳制品对PMS女性RLS的影响。
    方法:我们进行了2.5个月,随机化,全盲临床试验,以评估富含维生素D的低脂牛奶和酸奶对PMS女性RLS的有效性。在141名患有腹部肥胖的中年女性中,71例和70例接受强化和非强化低脂乳制品,分别。所有受试者完成症状筛查工具(PSST)和RLS问卷。
    结果:结果显示,在患有严重PMS(PSST>28)的女性中,维生素D强化后,血清维生素D水平显着增加。干预后,重度PMS亚组(PSST>28)的平均不宁腿评分显着降低(p<0.05。在所有个体中,干预组和对照组之间的血清维生素D水平显着不同(PSST<19,PSST19-28和PSST>28)(p<0.05),但三个PMS亚组中干预组和对照组的RLS评分差异无统计学意义(p>0.05)。
    结论:用维生素D3强化乳制品可以提高重度PMS女性的血清维生素D水平并降低RLS严重程度,但不是在其他群体。
    BACKGROUND: Restless legs syndrome (RLS) is an unpleasant condition that affects the quality of life of patients. Its prevalence in increased in women with premenstrual syndrome (PMS). Vitamin D plays a key role in female reproduction through its impact on calcium homeostasis and neurotransmitters. We aimed to evaluate the effect of dairy products fortified with Vitamin D3 on RLS in women with PMS.
    METHODS: We conducted a 2.5-month, randomized, total-blinded clinical trial to evaluate the effectiveness of low-fat milk and yogurt fortified with vitamin D on RLS in women with PMS. Among 141 middle-aged women with abdominal obesity, 71 and 70 cases received fortified and non-fortified low-fat dairy products, respectively. All subjects completed a Symptoms Screening Tool (PSST) and RLS questionnaires.
    RESULTS: The results showed that in the women with severe PMS (PSST > 28), serum levels of vitamin D increased significantly following vitamin D fortification. The mean restless legs score in the severe PMS subgroup (PSST > 28) was significantly lower after the intervention (p < 0.05. Serum Vitamin D levels significantly differed between intervention and control groups in all individuals (PSST < 19, PSST 19-28, and PSST > 28) (p < 0.05), but no significant differences were found between RLS scores of the intervention and control groups in the three PMS subgroups (p > 0.05).
    CONCLUSIONS: Fortifying dairy products with vitamin D3 can increase the serum levels of vitamin D and reduce the RLS severity in women with severe PMS, but not in other groups.
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  • 文章类型: Journal Article
    目的:模拟每100克面粉用200、400和500毫克钙强化小麦面粉对钙摄入有效性和安全性的影响。
    方法:使用IOWA摄入量模型对通过重复24小时饮食召回收集的横截面数据进行二次分析,评估和规划方案。
    方法:阿根廷国家健康和营养调查中的城市(ENNyS2018-2019)。
    方法:21358名参与者,包括孩子,青少年,和成年人。
    结果:所有年龄段的大多数人都报告食用小麦粉。在9岁以上的人群中,低钙摄入量的患病率超过80%。模拟每100克小麦粉500毫克钙的强化表明,在19岁至51岁以下的女孩和妇女以及4岁至71岁以下的男孩和男子中,低钙摄入量的患病率可以降低40个百分点以上,而在老年人中,低钙摄入量保持在65%以上。在所有年龄组中,高于上限摄入量的百分比仍低于1.5%。
    结论:可以进一步探索钙粉强化以提高钙摄入量。可以进行国家以下各级的模拟,以确定可以在阿根廷探索的这一战略可能无法达到的群体。该分析可用于倡导强化小麦粉的策略。
    OBJECTIVE: To simulate the impact on calcium intake - effectiveness and safety - of fortifying wheat flour with 200, 400 and 500 mg of calcium per 100 g of flour.
    METHODS: Secondary analysis of cross-sectional data collected through repeated 24 h dietary recalls using the Iowa State University Intake Modelling, Assessment and Planning Program.
    METHODS: Urban cities in the National Health and Nutrition Survey of Argentina (ENNyS 2018-2019).
    METHODS: 21 358 participants, including children, adolescents and adults.
    RESULTS: Most individuals in all age groups reported consuming wheat flour. The prevalence of low calcium intake was above 80 % in individuals older than 9 years. Simulating the fortification of 500 mg of calcium per 100 g of wheat flour showed that the prevalence of low calcium intake could be reduced by more than 40 percentage points in girls and women aged 19 to less than 51 years and boys and men aged 4 to less than 71 years, while it remained above 65 % in older ages. The percentages above the upper intake level remained below 1·5 % in all age groups.
    CONCLUSIONS: Calcium flour fortification could be further explored to improve calcium intake. Subnational simulations could be performed to identify groups that might not be reached by this strategy that could be explored in Argentina. This analysis could be used to advocate for a strategy to fortify wheat flour.
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  • 文章类型: Journal Article
    背景:对于极早产儿,人乳通常使用基于加工牛乳的配方产品进行强化。完整的牛初乳(BC),牛奶中含有丰富的抗炎因子,被认为是一种替代。我们调查了BC是否会影响早产儿的抗炎/TH2免疫和感染风险。
    方法:对于多中心的二次分析,随机对照试验(NCT03537365),极早产儿(妊娠26-31周,23%小于胎龄,SGA)随机接受BC(ColoDan,生物纤维,丹麦,n=113)或常规强化剂(PreNAN,雀巢,瑞士,n=116)。将感染定义为连续五天或更长时间的抗生素治疗,并在开始强化之前和之后在血浆中测量29种细胞因子/趋化因子。
    结果:一般来说,开始强化后的感染风险与低胎龄有关,强化前的SGA状态和抗生素使用情况。针对混杂因素进行了调整,强化BC的婴儿表现出更多的感染发作(20%vs12%,P<0.05)和更高的累积感染风险(危险比,HR1.9,P=0.06),特别是对于SGA婴儿(HR3.6,P<0.05)。此外,BC强化的婴儿有更高水平的TH2相关细胞因子/趋化因子(IL-10,MDC,MCP4)和与TH1/TH17应答(IL-15,IL-17,GM-CSF)相关的细胞因子水平降低。差异在SGA婴儿中最为明显,在BC组中显示出更高水平的TH2相关IL-4,IL-6和IL-13,而较低的干扰素-γ和IL-1α水平。
    结论:强化BC的婴儿表现出从TH2-到TH1-偏向的全身免疫的延迟转变,特别是在SGA婴儿中,可能受到多种混杂因素的影响,随着抗生素使用的增加,提示对感染的易感性增加。
    BACKGROUND: For very preterm infants, human milk is often fortified with formula products based on processed bovine milk. Intact bovine colostrum (BC), rich in anti-inflammatory milk factors, is considered an alternative. We investigated if BC affects anti-inflammatory/TH2 immunity and infection risk in very preterm infants.
    METHODS: For a secondary analysis of a multicenter, randomized controlled trial (NCT03537365), very preterm infants (26-31 weeks gestation, 23% small for gestational age, SGA) were randomized to receive BC (ColoDan, Biofiber, Denmark, n = 113) or conventional fortifier (PreNAN, Nestlé, Switzerland, n = 116). Infection was defined as antibiotic treatment for five or more consecutive days and 29 cytokines/chemokines were measured in plasma before and after start of fortification.
    RESULTS: In general, infection risk after start of fortification was associated with low gestational age, SGA status and antibiotics use prior to fortification. Adjusted for confounders, infants fortified with BC showed more infection episodes (20 vs 12%, P < 0.05) and higher cumulative infection risk (hazard ratio, HR 1.9, P = 0.06), particularly for SGA infants (HR 3.6, P < 0.05). Additionally, BC-fortified infants had higher levels of TH2-related cytokines/chemokines (IL-10, MDC, MCP4) and reduced levels of cytokines related to TH1/TH17-responses (IL-15, IL-17, GM-CSF). The differences were most pronounced in SGA infants, displaying higher levels of TH2-related IL-4, IL-6, and IL-13, and lower interferon-γ and IL-1α levels in the BC group.
    CONCLUSIONS: Infants fortified with BC displayed a delayed shift from TH2- to TH1-biased systemic immunity, notably in SGA infants, possibly influenced by multiple confounding factors, alongside elevated antibiotic use, suggesting increased susceptibility to infection.
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  • 文章类型: Journal Article
    目前尚不清楚术前营养强化如何影响先天性心脏病婴儿术后生长轨迹和营养状况。进行了一项单中心回顾性队列研究,以评估0-18月龄因房间隔缺损而接受心脏修复的患者的生长情况。室间隔缺损,房室间隔缺损,或者法洛四联症.在修复后0-30天和31-60天以及2、5和10岁时分析队列。回顾了24例接受强化营养的患者和60例术前接受未强化营养的患者的记录。与未强化营养的人相比,强化营养的人在修复后的前30天内具有更高的生长速度:每天28.4(23.8-83.3)克,每天16.7(7.1-21.4)克,p=0.004。未强化组在2、5和10岁时的体重百分比较高(p=0.02,p=0.045和p=0.01)。未强化组的体重指数(BMI)在5岁和10岁时较高(p=0.045和p=0.02),与强化组相比,超重或肥胖的患病率更高(p=0.13)。先天性心脏病患儿的再手术营养强化与修复后前30天生长速度较高和10岁时BMI百分位数较低相关.需要进一步的研究来评估术前营养强化与术后结局之间的关系。营养状况,以及青春期和成年期肥胖的患病率。
    It remains unclear how preoperative nutrition fortification impacts postoperative growth trajectories and nutritional status among infants with congenital heart disease. A single center retrospective cohort study was performed to evaluate measures of growth among patients who underwent cardiac repair at 0-18 months of age for atrial septal defect, ventricular septal defect, atrioventricular septal defect, or tetralogy of Fallot. Cohorts were analyzed at 0-30 and 31-60 days post-repair as well as at 2, 5, and 10 years of age. Records of 24 patients who received fortified nutrition and 60 patients who received unfortified nutrition preoperatively were reviewed. Those with fortified nutrition had higher growth velocities in the first 30 days post-repair compared to those with unfortified nutrition: 28.4 (23.8-83.3) grams per day versus 16.7 (7.1-21.4) grams per day, p = 0.004. Weight percentile for age was higher in the unfortified group at 2, 5, and 10 years of age (p = 0.02, p = 0.045, and p = 0.01). Body mass index (BMI) percentile for age was higher in the unfortified group at 5 and 10 years of age (p = 0.045 and p = 0.02) with a trend toward higher prevalence of either overweight or obesity compared to the fortified group (p = 0.13). reoperative nutrition fortification among infants with congenital heart disease is associated with higher growth velocity in the first 30 days post-repair and lower BMI percentile for age at 10 years. Further studies are needed to evaluate the association between preoperative nutrition fortification and postoperative outcomes, nutritional status, and prevalence of obesity in adolescence and adulthood.
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  • 文章类型: Journal Article
    需要有关盐消耗模式的信息,以告知对盐减少策略的需求和设计。
    在加纳北部,这项研究旨在评估家庭食盐的消费量,包括肉汤里的盐,并将(估计)妇女和儿童的盐摄入量与全球建议进行比较;估计从肉汤中消耗的盐的比例;并确定因素,包括知识,态度,和实践,与家庭食盐消费有关。
    采用混合方法方法,我们在托隆和昆布古区(14个城市,14个农村集群)(clinicaltrials.gov注册表:NCT04632771)。家庭报告购买了可自由支配的盐(DS,\“食盐\”)和肉汤块。使用成年男性当量方法估算女性(15-49岁)和儿童(2-5岁)的DS和总盐(TS;DS+肉汤中的盐)消费量,并与全球建议(<5g/d女性;<3.75g/d儿童)进行比较。女性的盐摄入量也是根据尿钠排泄(INTERSALT方程)预测的。DS和TS消耗之间的关联,以及家庭和妇女的特点,用最小调整和多变量线性混合效应模型进行测试。使用框架方法生成定性FGD主题。
    根据家庭购买数据,对于44%的儿童[中位数:2.9(IQR:1.9,5.2)g/d]和60%的女性[6.0(4.0,10.2)g/d]的估计TS消费量超过了全球建议;35%的儿童和50%的女性超过了DS单独的建议.Bouillon贡献了<25%的家庭TS消费。很少有特征与DS或TS消耗相关。塑造盐消费行为的显著定性主题包括盐作为调味料的无处不在,关键家庭成员对食品采购和准备的影响,以及对健康的看法。
    购买数据表明,妇女和儿童的食盐摄入量超过建议,即使不包括肉汤中的盐;在家外准备的食物可能会进一步发挥作用。在这种情况下,可能需要采取减盐干预措施。
    UNASSIGNED: Information on salt consumption patterns is needed to inform the need for and design of salt reduction strategies.
    UNASSIGNED: In northern Ghana, this study aimed to estimate household consumption of salt, including salt from bouillon, and compare (estimated) women and children\'s salt intake to global recommendations; to estimate the proportion of salt consumed from bouillon; and to identify factors, including knowledge, attitudes, and practices, associated with household salt consumption.
    UNASSIGNED: Employing mixed-methods methodology, we conducted a pilot survey (n = 369 households enrolled) and focus group discussions (FGDs; n = 20) in Tolon and Kumbungu districts (14 urban, 14 rural clusters) (clinicaltrials.gov registry: NCT04632771). Households reported purchases of discretionary salt (DS, \"table salt\") and bouillon cubes. DS and total salt (TS; DS+salt from bouillon) consumption for women (15-49 y) and children (2-5 y) were estimated using the Adult Male Equivalent method and compared with global recommendations (<5 g/d women; <3.75 g/d children). Women\'s salt intake was also predicted from urinary sodium excretion (INTERSALT equation). Associations between DS and TS consumption, as well as household and women\'s characteristics, were tested with minimally adjusted and multivariable linear mixed-effects models. Qualitative FGD themes were generated using the Framework Method.
    UNASSIGNED: From household purchase data, estimated TS consumption exceeded global recommendations for 44% of children [median: 2.9 (IQR: 1.9, 5.2) g/d] and 60% of women [6.0 (4.0, 10.2) g/d]; 35% of children and 50% of women exceeded recommendations from DS alone. Bouillon contributed <25% of households\' TS consumption. Few characteristics were associated with DS or TS consumption. Salient qualitative themes that shaped salt consumption behaviors included salt\'s ubiquity as a seasoning, key household members\' influence on food procurement and preparation, and perceptions about health.
    UNASSIGNED: Purchase data suggest salt consumption among women and children exceeds recommendations, even when excluding salt from bouillon; food prepared outside the home likely further contributes. Salt reduction interventions may be warranted in this context.
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  • 文章类型: Journal Article
    强化面包等高度消耗的食物是对抗缺铁性贫血的简单而廉价的策略。然而,有时会有一些副作用,如铁过载和消化问题。因此,这项研究旨在检查伊朗常用类型的面粉和面包中铁的含量及其非致癌风险(Barbary,Lavash,和Tafton)在伊斯法罕,伊朗。通过电感耦合等离子体光发射光谱仪测量100个面粉和面包样品的铁浓度。此外,强化面包中铁的非致癌健康风险是通过蒙特卡罗模拟技术中的目标危害商(THQ)估算的。检测限(LOD)和定量限(LOQ),回收率为95%,分别为1.8×10-5和5.9×10-5毫克/千克,分别。在伊朗,面粉(53.48±22.49mg/kg)和面包(39.02±22.63mg/kg)样品中铁的总平均浓度在标准推荐范围(40-85mg/kg)内。成人和儿童的THQ分别为0.53和2.48。分别。因此,通过面包消费铁的非致癌风险是成年人可以接受的,虽然儿童作为敏感群体是不可接受的。因此,根据全面的风险评估研究,需要重新筛选伊朗的面粉和面包强化计划。
    Fortification of highly-consumed foods such as bread is an easy and cheap strategy to combat the iron deficiency anemia. However, there have sometimes been some side effects such as iron overload and digestive problems. Accordingly, this study aimed to examine the amount of iron as well as its non-carcinogenic risks in commonly-used types of Iranian flour and breads (Barbary, Lavash, and Tafton) in Isfahan, Iran. Iron concentration of 100 samples of flour and breads were measured by Inductively Coupled Plasma Optical Emission Spectrometer. Moreover, the non-carcinogenic health risk of iron in fortified breads was estimated by Target Hazard Quotient (THQ) in Monte Carlo Simulation technique. The limit of detection (LOD) and limit of quantification (LOQ), with a recovery level of 95%, were 1.8 × 10-5 and 5.9 × 10-5 mg/kg, respectively. The total mean concentration of iron in flour (53.48 ± 22.49 mg/kg) and bread (39.02 ± 22.63 mg/kg) samples was within the standard recommended range (40-85 mg/kg) in Iran. THQ for adults and children was equal to 0.53 and 2.48. respectively. Hence, non-carcinogenic risk of iron through bread consumption was acceptable for adults, while it was not acceptable for children as a sensitive group. Consequently, it is required to rescreen the flour and bread fortification program in Iran according to the comprehensive risk assessment studies.
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  • 文章类型: Journal Article
    人们担心在低风险怀孕期间,女性摄入的叶酸超过推荐(400μg/天),可能不符合其他营养素的建议。这项研究的目的是在加拿大儿童队列研究中确定妇女(n=2996)在妊娠中期(第18周)的叶酸补充剂使用和饮食叶酸摄入量。还评估了维生素B12和胆碱的摄入量,因为它们与叶酸代谢相关。.大多数参与者(71.6%)每天服用产前补充剂。28%的女性(n=847)报告服用叶酸补充剂,这些女性中,45.3%的人每日补充叶酸摄入量高于上摄入量水平(UL;1000μg/天)。每日膳食叶酸摄入量为[平均值(SD)]575(235)DFEµg/d。相比之下,只有24.8%的女性符合膳食胆碱充足摄入量建议(AI≥450mg/d),平均(SD)摄入量为375(151)mg/天.进一步了解补充叶酸摄入量高于UL和低胆碱摄入量在怀孕期间的影响需要进一步调查。
    There is concern that during a low-risk pregnancy, women are consuming more than recommended (400 µg/day) supplemental folic acid and may not meet recommendations for other nutrients. The objective of this study was to determine folic acid supplement use and dietary folate intakes in the second trimester (week 18) of pregnancy in women (n = 2996) in the Canadian CHILD cohort study. Vitamin B12 and choline intakes were also assessed because they are metabolically related to folate. The majority of participants (71.6%) were consuming a daily prenatal supplement. Twenty-eight percent of women (n = 847) reported consuming a folic acid supplement and of these women, 45.3% had daily supplemental folic acid intakes above the upper intake level (UL; 1000 µg/day). Daily dietary folate intakes were (mean (SD)) 575 (235) DFE µg/day. In contrast, only 24.8% of women met the dietary choline adequate intake (AI) recommendation (AI ≥ 450 mg/day) with a mean (SD) intake of 375 (151) mg/day. Further understanding of the impact of supplemental folic acid intake above the UL and low choline intake during pregnancy requires further investigation.
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  • 文章类型: Journal Article
    目的:牛奶是英国碘的主要来源,但是植物性牛奶替代品(PBMA)的消费量正在增加,这些产品通常不加碘。我们评估了用PBMA代替当前的牛奶消费对碘摄入量的影响。
    方法:我们使用了来自儿童(1.5-10岁)的国家饮食和营养调查(2016-2019年)的数据,女孩11-18岁,育龄妇女(WRA)。我们使用饮食建模方法,使用品牌水平的碘强化数据(0、13、22.5、27.4和45µg/100mL)。相对于通常的饮食,我们计算了碘摄入量的变化,以及摄入量低于下限参考营养素摄入量(LRNI)或高于上限的比例。
    结果:对于所有组,用PBMA替换,未强化或以最低浓度强化,导致碘摄入量有意义的减少,并增加摄入量结论:用市售的PBMA代替牛奶有可能减少人群的碘摄入量,取决于防御工事的等级。需要用≥22.5和<45µg碘/100mL强化的PBMA,以最大程度地减少对碘摄入量的影响。需要研究乳制品替代总量的影响。
    OBJECTIVE: Cow\'s milk is the primary source of iodine in the UK, but consumption of plant-based milk alternatives (PBMA) is increasing and these products are often not fortified with iodine. We evaluated the impact that replacing current milk consumption with PBMA would have on iodine intake.
    METHODS: We used data from the National Diet and Nutrition Survey (2016-2019) for children (1.5-10 years), girls 11-18 years, and women of reproductive age (WRA). We used a dietary modelling approach with scenarios using brand-level iodine-fortification data (0, 13, 22.5, 27.4 and 45 µg/100 mL). Relative to usual diet, we calculated change in iodine intake, and the proportion with intake below the Lower Reference Nutrient Intake (LRNI) or above the upper limit.
    RESULTS: For all groups, replacement with PBMA, either unfortified or fortified at the lowest concentration, resulted in a meaningful decrease in iodine intake, and increased the proportion with intake < LRNI; compared to usual diet, iodine intake reduced by 58% in children 1.5-3 years (127 vs. 53 µg/day) and the proportion with intake < LRNI increased in girls (11-18 years; 20% to 48%) and WRA (13% to 33%) if an unfortified PBMA was used. Replacement of milk with PBMA fortified at 27.4 µg/100 mL had the lowest impact.
    CONCLUSIONS: Replacing milk with commercially available PBMAs has potential to reduce population iodine intake, depending on the fortification level. PBMAs fortified with ≥ 22.5 and < 45 µg iodine/100 mL would be required to minimize the impact on iodine intake. Research is needed on the impact of total dairy replacement.
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  • 文章类型: Randomized Controlled Trial
    背景:在认知期间补充叶酸可降低婴儿神经管缺陷的风险,但对长期接触叶酸的担忧仍然存在。对叶酸吸收的更好理解可能会澄清潜在的风险。叶酸转运蛋白已在小肠中表征,但在健康的结肠中就不那么重要了,自由生活的人类。叶酸强化或补充对沿着肠道调节这些转运蛋白的影响是未知的。
    目的:目的是表征叶酸转运蛋白/受体(FT/R)和叶酸水解酶的表达,谷氨酸羧肽酶II(GCPII),从回肠末端和整个成人结肠,并评估补充叶酸的影响。
    方法:在这项为期16周的开放标记随机临床试验中,成年人食用低叶酸饮食,一种不含叶酸的复合维生素,补充400μg叶酸或不补充叶酸。在基线时评估饮食摄入量和血液,8-,和16周(结肠镜检查时间)。在回肠末端评估FT/R和GCPII的mRNA表达和蛋白表达,盲肠,升结肠和降结肠。
    结果:在24名随机受试者中,在基线时未观察到膳食叶酸摄入量或血液叶酸的差异.在400和0μg叶酸组中,16周的平均±SD红细胞叶酸分别为1765±426和911±242nmol/L,分别为(P<0.0001)。减少叶酸载体,质子偶联叶酸转运体,在回肠末端和结肠中检测到叶酸受体α的表达,外排转运蛋白乳腺癌耐药蛋白和多药耐药蛋白-3。除了在升结肠400μg补充组中FR-α和GCPII的mRNA表达更高,未观察到治疗差异(P<0.02)。
    结论:叶酸转运体存在于整个回肠末端和结肠;几乎没有证据表明低剂量叶酸补充剂会影响结肠吸收。
    背景:NCT03421483https://clinicaltrials.gov/study/NCT03421483。
    Folic acid supplementation during the periconceptional period reduces the risk of neural tube defects in infants, but concern over chronic folic acid exposure remains. An improved understanding of folate absorption may clarify potential risks. Folate transporters have been characterized in the small intestine, but less so in the colon of healthy, free-living humans. The impact of folic acid fortification or supplementation on regulation of these transporters along the intestinal tract is unknown.
    The objective was to characterize expression of folate transporters/receptor (FT/R) and folate hydrolase, glutamate carboxypeptidase II (GCPII), from the terminal ileum and throughout the colon of adults and assess the impact of supplemental folic acid.
    In this 16-wk open-labeled randomized clinical trial, adults consumed a low folic acid-containing diet, a folate-free multivitamin, and either a 400 μg folic acid supplement or no folic acid supplement. Dietary intakes and blood were assessed at baseline, 8 wk, and 16 wk (time of colonoscopy). Messenger RNA (mRNA) expression and protein expression of FT/R and GCPII were assessed in the terminal ileum, cecum, and ascending and descending colon.
    Among 24 randomly assigned subjects, no differences in dietary folate intake or blood folate were observed at baseline. Mean ± SD red blood cell folate at 16 wk was 1765 ± 426 and 911 ± 242 nmol/L in the 400 and 0 μg folic acid group, respectively (P < 0.0001). Reduced folate carrier, proton-coupled folate transporter, and folate-receptor alpha expression were detected in the terminal ileum and colon, as were efflux transporters of breast cancer resistance protein and multidrug resistance protein-3. Other than a higher mRNA expression of FR-alpha and GCPII in the 400 μg supplement group in the ascending colon, no treatment differences were observed (P < 0.02).
    Folate transporters are present throughout the terminal ileum and colon; there is little evidence that a low dose of folic acid supplementation affects colonic absorption. This trial was registered at clinicaltrials.gov as NCT03421483.
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  • 文章类型: Journal Article
    食用“营养增强”食品(包括那些强化或强化以提供营养和功能特性的食品)可能有助于提高整体饮食质量并应对与营养不良相关的风险。然而,强化会对消费者的接受度产生负面影响,特别是在预期的感官特性的\'交付\'食品受到目标成分的影响。这里,我们探讨了影响消费者对六种强化食品的可接受性的因素,包括咸味和甜食成分(例如,高蛋白饺子,益生菌酸奶饮料)。个人焦点小组(25名年龄在22至76岁之间的消费者)分两个阶段进行;首先,参与者在没有意识到强化的情况下完成了产品的盲目口味测试。其次,与会者讨论了产品的额外成分和食品特性的认识。自反主题分析表明,不同食物对感官特性的喜好不同,但是告知参与者产品强化强调了味道之间的潜在权衡,健康,价格,和熟悉。尽管参与者通常会优先考虑味道和质地,对健康益处的积极看法增加了消费者的购买意愿,而成本和产品使用的不确定性都是潜在的障碍。信息的信任是标签和产品索赔的一个关键问题。这些结果突出了可以优化的产品功能,以支持强化食品的成功。建立产品品牌和提高消费者对防御工事的认识时,更大的透明度对于长期消费者的接受也很重要。
    Consuming \'nutritionally-enhanced\' food products (including those that are fortified or enriched to deliver nutritional and functional properties) may help to improve overall diet quality and combat risks associated with malnutrition. However, fortification can negatively impact consumer acceptance, particularly where expected sensory properties of \'delivery\' foods are affected by target ingredients. Here, we explored factors influencing consumer acceptability for six novel food products that had been fortified, including both savoury and sweet meal components (e.g., high protein dumplings, probiotic yoghurt drink). In person focus groups (25 consumers aged between 22 and 76 years old) were conducted with two stages; firstly, participants completed a blind taste test of products without awareness of fortification. Secondly, participants discussed products with awareness of additional ingredients and food properties. Reflexive thematic analysis showed that liking of sensory properties differed between foods, but informing participants about the fortification of products highlighted potential trade-offs between taste, health, price, and familiarity. Though taste and texture were generally prioritised by participants, positive perceptions of health benefits increased consumer willingness to buy, whilst both cost and uncertainty about product use were potential barriers. Trust of information was a key concern for labelling and product claims. These results highlight product features that may be optimised to support the success of fortified foods. Greater transparency when building product brands and improving consumer knowledge of fortification may also be important for longer-term consumer acceptance.
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