浙江省城市居民膳食营养摄入状况研究

目的了解浙江省城乡居民膳食营养摄入现状。方法 2008年根据不同经济水平、不同饮食习惯及地理分布,选择浙江省11个城市,以连续3 d 24 h回顾法为基础,3 d秤重法为补充收集居民膳食数据。结果膳食调查共4 949人。蛋白质(84.9 g/标准人日)、能量(9 653.7 kJ/标准人日)基本满足要求,谷类食物仍是膳食主体,优质蛋白质摄入有所改善,猪肉占的比例较高(75.5%),豆类摄入增加(36.2 g/标准人日);脂肪摄入量提高很快,达到87.7 g/标准人日;脂肪供能占总体供能的比例迅速提高,达到34.3%,已超过WHO的上限值(30.0%);油脂和食盐摄入量分别为41.3 g/标准人日、10.5 g/标准人日,高于推荐值;水果和部分微量营养素(如钙、膳食纤维等)摄入不足,奶制品摄入水平仍然偏低,仅有60.0 g/标准人日。结论浙江省城市居民膳食结构模式比较合理,但已出现高蛋白、高盐、高脂肪的趋势,部分营养素摄入不足,应加强营养知识教育普及,提倡合理膳食和健康的生活方式。     

Dietary intake and nutritional status of older adult homeless women: a pilot study

A pilot study was conducted to identify eating patterns, food sources, and nutritional problems among a limited population of older homeless women located in a large urban area. Most of these women's food came from shelter meals, and their food intake was inadequate for most nutrients. The availability of fruits, vegetables, dairy products, and whole grains was very limited. Foods high in saturated fats and simple carbohydrates provided most of their caloric intake. Although some women were obese, most were found to have low BMI and mid-arm muscle mass area measurements indicating low body fat stores and potential muscle wasting.     

浙江省城市居民膳食蛋白质摄入状况分析

目的分析浙江省城市居民膳食蛋白质摄入状况。方法于2009-2011年运用3天24小时回顾法和称重法对浙江省城市共3452名2岁及以上居民进行膳食调查,获得居民每日食物、蛋白质和必需氨基酸摄入量,结合人口学信息对蛋白质摄入进行统计分析。结果纳入分析的膳食调查人数为3240人。蛋白质摄入量为每标准人日71.1g,低于蛋白质推荐摄入量(RNI)80%的人群占34.3%,优质蛋白质占蛋白质供给量的51.7%。各种必需氨基酸的氨基酸比值系数接近1,氨基酸比值系数分等于85,随着文化程度的提高蛋白质摄入量大于等于RNI的比例也随着之增加(OR=0.822,P0.001)。结论浙江省城市居民膳食蛋白质摄入量合理,优质蛋白质比例适当,必需氨基酸组成含量比例与WHO/FAO推荐模式相近,膳食蛋白质营养价值高。蛋白质摄入量随着文化程度的增高而增加。浙江省城市居民存在蛋白质摄入不足的风险,以老年男性和育龄女性最为突出。     

浙江省城乡居民膳食纤维摄入情况调查

目的 了解浙江省城乡及不同地域居民的膳食纤维摄入现状、食物来源等情况.方法 采用连续3 d24 h回顾法和称重法对9 798名≥2岁居民进行个人食物摄入量调查及调味品消费量调查.结果 浙江省每日人均膳食纤维摄入量为10.12 g,城市和农村分别为11.23、9.00g,总体上呈现男性＞女性,城市＞农村;18岁以前摄入量随年龄的增加而上升,老年组略有下降;平原、山区、海岛每日人均摄入量分别为10.58、9.64、8.94g,且中、青年组均呈现平原＞山区＞海岛的分布趋势(P＜0.05);膳食纤维主要食物来源为蔬菜、谷类、干豆、菌藻和调味品,总摄入量分别为36 624.31、27 616.97、15 024.92、8 835.47、8 175.03g,分别占33.89%、25.56%、13.90%、8.18%、7.57%.结论 浙江省城乡居民膳食纤维摄入量普遍不足,农村和海岛地区更为缺乏,膳食纤维的摄入量有待提高.     

Dietary guidelines and patterns of food and nutrient intake in Sweden

The Nordic and Swedish Nutrition Recommendations emphasize the balance between macronutrients in the diet. The amount of saturated and total fat should be limited to c. 10 %energy and 30 %energy, respectively, and the amount of total carbohydrates should be 55-60 %energy. Data from the first Swedish national dietary survey in 1989 show that the average diet is too high in fat, especially saturated fat (36-37 %energy and 16 %energy, respectively) while the content of total carbohydrates and dietary fibre is too low. However, parts of the population consume a diet that meets the recommendation for a particular macronutrient. A comparison of subjects with a low or high intake of total fat and saturated fat, dietary fibre or fruit and vegetables show some common trends with respect to the characteristics of a dietary pattern equal or close to the recommendations, e.g. more frequent consumption of fruit and vegetables and a lower consumption of some fat-rich foods, such as spreads, cheese and sausages.     

Impact of nutrition education on food and nutrient intake of pregnant women

Researchers compared data on 33 pregnant women attending nutrition education classes regularly over a 13-week period (nutrition education group) with data on 33 other pregnant women who did not receive such education (controls) to examine the impact of nutrition education on the pregnant women's food and nutrient intake. The 66 pregnant women were selected from two hospitals and two urban family welfare centers in Ludhiana city, India. All were from the low socioeconomic group (i.e., per capita income of Rs. 369/month). A dietary survey was conducted at 20 weeks gestation and again at 36 weeks gestation. At 20 weeks, the two groups were not statistically different. The intake of cereals, pulses, green leafy vegetables, fats and oils, and sugar and jagger were lower than the recommended daily intake (RDI). On the other hand, intake was more than RDI for milk and milk products, other vegetables, and roots and tubers. Except thiamine and ascorbic acid, intake of nutrients was inadequate. In both the nutrition education group and the control group, nutrient intake was higher at 36 weeks than at 20 weeks due to the increased food requirements of pregnancy. Women in the nutrition education group were more likely than the control group to consume more protein, vitamin A, thiamine, folic acid, and vitamin C. This likely reflects a higher consumption of pulses, milk and milk products, fruits, and vegetables as well as adopting favorable nutritional practices (e.g., use of sprouted grains). Nevertheless, intake was below RDIs for many nutrients, even for women in the nutrition education group. These findings suggest that nutrition education for pregnant women does improve nutrient intake but also that more needs to be done to bring intake levels up even higher.     

Relationship of self-concept to nutrient intake and eating patterns in young women

The relationships between attitudes toward oneself (self-concept) and nutrition-related behavior were examined for 153 single women aged 18 to 35 years. Nutrition-related behaviors were assessed with 3-day food records that were analyzed for nutrient composition and eating patterns (Basic Four Food Group scores, number of meals per day, and percent of energy from meals and snacks). Attitudes toward self, knowledge and attitudes about nutrition, and general health practices were assessed with a written questionnaire that incorporated several existing scales. Because of potential overlap among the three self-concept scales, as well as nutrition-attitude and health-practice items, responses were factor analyzed, yielding 14 factors. These factors were then compared with nutrient intake and eating patterns. Scores for the seemingly desirable factors of the "Super Person" or "Do Your Own Thing" were negatively correlated with intake of several nutrients; scores on the self-perception of a "Traditional" orientation to life were positively related to calcium intake and meal patterns. The "Nutrition Is Important" and "Nutrition Knowledge" factors were also positively related to desirable eating patterns and nutrient intakes. We conclude that several self-concept variables, as well as nutrition attitudes and knowledge, can potentially influence nutrient intakes and eating patterns in young women.     

Dietary patterns and mortality in Danish men and women: a prospective observational study

The analysis of dietary patterns emerged recently as a possible approach to examining diet-disease relation. We analysed the risk of all-cause and cardiovascular mortality associated with dietary patterns in men and women, while taking a number of potential confounding variables into account. Data were from a prospective cohort study with follow-up of total and cause-specific mortality. A random sample of 3698 men and 3618 women aged 30-70 years and living in Copenhagen County, Denmark, were followed from 1982 to 1998 (median 15 years). Three dietary patterns were identified from a twenty-eight item food frequency questionnaire, collected at baseline: (1) a predefined healthy food index, which reflected daily intakes of fruits, vegetables and wholemeal bread, (2) a prudent and (3) a Western dietary pattern derived by principal component analysis. The prudent pattern was positively associated with frequent intake of wholemeal bread, fruits and vegetables, whereas the Western was characterized by frequent intakes of meat products, potatoes, white bread, butter and lard. Among participants with complete information on all variables, 398 men and 231 women died during follow-up. The healthy food index was associated with reduced all-cause mortality in both men and women, but the relations were attenuated after adjustment for smoking, physical activity, educational level, BMI, and alcohol intake. The prudent pattern was inversely associated with all-cause and cardiovascular mortality after controlling for confounding variables. The Western pattern was not significantly associated with mortality. This study partly supports the assumption that overall dietary patterns can predict mortality, and that the dietary pattern associated with the lowest risk is the one which is in accordance with the current recommendations for a prudent diet.     

Dietary habits and nutrient intake in non-alcoholic steatohepatitis

OBJECTIVE: Non-alcoholic steatohepatitis (NASH) is one of the most important emerging health issues. Insulin resistance and metabolic syndrome play a central role in the pathogenesis of NASH. Intake of nutrients strongly affects insulin resistance, carbohydrate and lipid metabolism, and hepatic steatosis. However, there are few reports about the intake of various nutrients in non-alcoholic fatty liver disease. In this work, we identified the characteristics of dietary habits and nutrient intake in patients with NASH. METHODS: Twenty-eight patients with NASH and 18 with simple steatosis (FL) were diagnosed from histologic findings, and their dietary habits and intake of nutrients were analyzed by detailed questioning by physicians and dieticians. RESULTS: There was an excess intake of carbohydrates/energy in patients with NASH 20-59 y of age compared with patients with FL. Among carbohydrates, intake of simple carbohydrates was higher in those with NASH. There also was a low intake of protein/energy in patients with NASH 40-59 y of age and a low intake of zinc in those 20-59 y of age compared with patients with FL. Ratio of intake of polyunsaturated fatty acid to saturated fatty acid was lower in patients with NASH and those with FL compared with the general Japanese subjects. CONCLUSION: These results suggest that imbalanced diets play important roles in development and progression of NASH and correction of these diets may be necessary in patients with NASH.     

Dietary fiber and nutrient intake in Crohn's disease.

The mean daily intake of dietary fiber, sugar, starch, fat, protein, and total energy was determined in 35 patients with Crohn's disease and 70 normal controls by obtaining individual dietary histories. For each patient with Crohn's disease there two controls, matched for age, sex, and socioeconomic background. In the patients with Crohn's disease the mean dietary fiber intake was established as 26.6 +/- 1.4 g/day, compared to 22.3 +/- 0.9 g/day in the controls, and was thus significantly higher (P less than 0.05). When compared with the controls, the patients with Crohn's disease also exhibited a significantly higher consumption of sugar 156 +/- 14 versus 91 +/- 5 g/day (P less than 0.001), starch (211 +/- 10 versus 170 +/- 9 g/day (P less than 0.01)), and total energy (14.4 +/- 0.7 versus 12.3 +/- 0.5 MJ/ day (P less than 0.01)).     

Dietary guidelines and patterns of intake in Denmark

Food-based dietary guidelines in Denmark have usually been expressed in simple terms only and need to be elaborated. Quantitative recommendations on fruit and vegetable intake were issued in 1998, recommending 600 g/d (potatoes not included). This paper is based on a national dietary survey in 1995 (n = 3098, age range 1-80 years) supplemented with data from a simple frequency survey in 1995 (n = 1007, age range 15-80 years) and from the first national survey in 1985 (n = 2242, age range 15-80 years). Only data on adults are included in this paper. Fat intake, saturated fat in particular, is too high (median intake 37 %energy and 16 %energy, respectively). Main fat sources are separated fats (butter, margarine, oil, etc.: 40%), meat (18%), and dairy products (21%). Total fat intake decreased from 1985 to 1995 but fatty acid composition did not improve. Dietary fibre intake is from 18 to 22 g/d (women and men, respectively) with 62% from cereals, 24% from vegetables and 12% from fruit. Mean intake of vegetables and potatoes was from 200 to 250 g/d (women and men, respectively). Mean intake of fruit and vegetables (potatoes not included) was 277 g/d, or less than half of the new recommendation (600 g/d). Only 15% of participants in the frequency survey reported consuming both fruit and vegetables every day, and only 28% reported to do so almost every day. In conclusion, dietary intake in Denmark is characterized by a high intake of saturated fat and total fat, and by a relatively low intake of fruit and vegetables.     

Dietary intake and nutrient supplement use in a Southern California retirement community

Dietary histories and information concerning the use of nutritional supplements were obtained from 51 randomly selected residents of an Orange County, CA, retirement community. The nutrients for which dietary intakes were most apt to fall below 100% of the 1980 Recommended Dietary Allowance were: calcium, in both sexes; energy, in males; and iron, thiamin, riboflavin, and niacin in females. With the exception of calcium, few subjects had intakes below two-thirds of the Recommended Dietary Allowances. These findings are similar to those reported in previous dietary surveys of the elderly. Vitamin and mineral supplements were consumed by 72% of the subjects; such consumption was unrelated to dietary intake. Supplemental vitamin C was consumed by 67% of the subjects in amounts ranging from 30 to 5200 mg daily; supplemental vitamin E was taken by 51%, with amounts ranging from 8 to 1000 IU daily. Supplement use by this population is one of the highest reported among the elderly, an effect that may result from the affluence of the community, its geographic location, and from a high level of nutritional consciousness among its residents.     

Dietary calcium and vitamin D intake and risk of colorectal cancer: a prospective cohort study in women

Although laboratory data and a few adenoma prevention trials suggest that calcium supplementation may reduce the risk of colorectal neoplasia, the results of observational studies of calcium intake and colorectal cancer risk are contradictory. However, few studies have examined the association among women or effects in specific colon subsites. Women with colorectal cancer diagnosed through 31 December 2000 were identified by linkage to regional cancer registries. During an average 11.3 yr of follow-up of 61,463 women, we observed 572 incident cases of colorectal cancer. Using data obtained from a 67-item food frequency questionnaire and Cox proportional hazards models to estimate rate ratios and 95% confidence intervals, we found an inverse association between dietary calcium intake and colorectal cancer risk. Women with the highest calcium intake (median 914 mg/day) had a reduced risk of colorectal cancer (rate ratio = 0.72, 95% confidence interval = 0.056-0.93, P for trend = 0.02) compared with women with the lowest intake (median 486 mg/day). Furthermore, our results suggest that the inverse association may be strongest in relation to distal cancers and among older women. The association with dairy products was less clear, suggesting that calcium intake per se is more important than specific calcium sources. Vitamin D intake was not clearly associated with risk. In sum, our data suggest that high calcium intake may lower colorectal cancer risk.     

Dietary patterns of adult women living in an urban area of Southern Brazil

OBJECTIVE: To explore the dietary patterns of adult women and to provide information for validating the instrument used. METHODS: A population-based cross-sectional study was carried out in a representative sampling of 1,026 women aged 20 to 60 years living in Southeastern Brazil, in 2003. A 70-item food frequency questionnaire was used to measure food intake. Dietary patterns were identified using principal component analysis. RESULTS: The reliability of factor analysis was assessed through the Kaiser-Meyer-Olkin statistic, that was equal to 0.823, the Bartlett test of sphericity, which reached statistical significance (chi-square (1225)=7406.39; p<0.001), and the determinant of the correlation matrix (6,28-4). Five dietary patterns were identified, each one consisting of 10 items (foods), which were grouped as healthy food pattern cost 1, healthy food pattern cost 2, healthy food pattern cost 3, risk food pattern cost 1 and risk food pattern cost 3. CONCLUSIONS: There were identified five dietary patterns among adult women. There was a clear difference in terms of the cost of these patterns. These findings suggest that cost may be one of the determinants of food choice and food intake in this population.     

Exercise training and nutrient intake in elderly women

This study examined the relationship between moderate exercise training (five 30- to 40-minute sessions per week for 12 weeks at 60% of heart rate reserve) and changes in nutrient intake in a group of 30 sedentary elderly women aged 67 to 85 years. Subjects were placed randomly into two groups (those who walked and those who did calisthenics) and were followed for 12 weeks. Measurements were done at three times (baseline, 5 weeks, and 12 weeks). Dietary intake was based on 7-day food records. The 12-week walking program resulted in a significant (12.6%) improvement in maximum oxygen consumption ( ₂max) but no change in body weight or skinfold thicknesses compared with the calisthenics program. Despite the improvement in cardiorespiratory fitness, no significant group × time interaction effects were observed for most of the nutrient intake variables tested. To test the effects of high levels of physical activity on nutrient intake, cross-sectional comparisons were made at baseline between highly conditioned and sedentary elderly women. The highly conditioned elderly women had higher energy and nutrient intakes, especially when expressed on a weight-adjusted basis. However, no differences in measures of dietary quality were found. Dietitians should not expect spontaneous improvement in either the quantity or quality of nutrient intake by elderly women who adopt a moderate exercise program. Although nutrient intake was greater in highly conditioned elderly women, their level of fitness and physical activity may be beyond the reach of many elderly women.     

Dietary protein intake and subsequent falls in older men and women: The Framingham study

Background  

Poor nutritional status is often present among older adults who experience a fall. However, dietary intake and weight loss are often overlooked as potential factors. The objective of this study was to test the association between dietary protein intake and risk of subsequent falls in a population-based cohort of elderly men and women.