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At least 145 records · Page 8Linked to original sources

PubMed2005

Inspiring or dispiriting? The effect of diet commercials on snack food consumption in high school and college-aged women.

OBJECTIVE: Recent research offers conflicting views of whether women high in dietary restraint are inspired or demoralized after viewing thin-ideal images. We conducted two studies to explore the impact of diet commercials featuring the thin-ideal image on snack food consumption. METHOD: In Study 1, 91 high school women watched a sad movie interrupted with diet or neutral commercials. In Study 2, 102 college women saw diet commercials early or midway through a sad movie. RESULTS: In Study 1, high restraint participants consumed more snacks after exposure to diet commercials than to neutral commercials. In Study 2, early commercials reduced snacking in low restraint women but not in high restraint women. DISCUSSION: Thin-ideal images embedded in diet commercials do not inspire high restraint women but can modify the eating of low restraint women.

Adolescent↗

PubMed1993

Children's lunch intake: effects of midmorning snacks varying in energy density and fat content.

To determine the effects of preloads differing in energy density and fat content on subsequent lunch intake, 24 preschool children consumed 113 g ice-cream preloads as mid-morning snacks (containing 0, 12, or 18 g of fat, and 4 g of protein), followed nearly 2 h later by an ad libitum lunch consisting of a variety of foods. A fat-free baseline preload, consisting of dry cereal and apple juice, was also included. The baseline, fat-free, medium and high-fat preloads contained 334, 740, 953, and 1150 kJ per serving. All three ice-cream preloads produced significant but equivalent suppression of ad libitum lunch intake relative to baseline; lunch intake was not related to the fat content or energy density of the ice-cream preloads. Compensation at lunch was not macronutrient specific; children did not increase their fat intake at lunch following the fat-free preload. As energy and fat content of the preloads increased, children consumed significantly fewer foods at lunch, confirming previous findings. These changes in the variety of foods consumed were related to preference: regardless of preload, children continued to consume their preferred foods, while non-preferred foods tended to be eliminated following the higher energy preloads. Because compensation for energy was incomplete, energy intake of meals plus snacks increased with the energy content of the preload. Additional research is required to determine whether manipulating the fat and energy content of snacks produces similar effects when the unit of analysis is the child's total daily diet, rather than a single meal.

Child Nutritional Physiological Phenomena↗

PubMed2001

Effect of contingent hunger state on development of appetite for a novel fruit snack.

Eating more fruit can reduce risk of cancer and cardiovascular disease. Understanding barriers to this behaviour is critical for strategies to encourage it. We addressed the question whether the level of hunger at which fruit is eaten would influence the development of appetite for fruit. Half the participants were asked to eat a pair of novel fruit snacks (dried fruit bar; 50 kcal each) exclusively when hungry (at least 3 hours since last eating), and half to eat them exclusively when full (20-30 minutes after a meal), twice a day for one week. Rated appetite for the bars, and ad-libitum intake, were measured when hungry and full, on 2 days prior to, and 2 days after this week. Compliance was assessed from dietary diaries. Thirty participants (22 women, 8 men) completed the study satisfactorily. For the group eating the fruit bars only when hungry (hungry-trained), intake increased after the week, but only when full at the time of testing. Other measures of appetite for this group were unaffected, with the exception of a reduced desire to eat the bars when tested hungry. Ranked preference for the trained flavour increased exclusively among hungry-trained subjects, but only for those who had reported their preferred snack food to be fruit. No change in any measure was found for the group eating the fruit bars exclusively when full. The results suggest the hungry-trained group learnt that the bars lacked strong satiation, thus allowing greater intake when full (learnt desatiation). For the same reason, however, the prospect of eating the bars when mildly hungry lost its appeal. Eating fruit between meals may not encourage snacking on fruit, unless hunger is absent at the time of consumption.

Adolescent↗

PubMed2001

Randomized, double-blind, placebo-controlled, food allergy challenge to olestra snacks.

Following approval of the fat replacer olestra for use in preparing savory snacks, Procter & Gamble implemented a postmarketing surveillance program to monitor marketplace introduction. Three and one-half percent of all health effects reported by consumers to the surveillance toll-free number were allergy-type symptoms (e.g., rash, itching, edema, hives, dyspnea). Because of these reports, we investigated whether olestra or some component of olestra snacks was a likely allergen in some subset of the population. A single center, randomized, double-blind, placebo-controlled, within-subject crossover food challenge study was conducted to confirm or refute the allergenicity of olestra snacks. Of the 65 subjects who reported symptoms consistent with immediate hypersensitivity to olestra's postmarketing surveillance program, 14 men and women traveled to the Arkansas Children's Hospital Research Institute to participate in this study. Each subject underwent a standard skin prick test at the beginning of the study, to help determine what component, if any, of the olestra product was allergenic. Following the skin prick test, subjects ate in random order, olestra-containing potato chips and regular fat-containing potato chips. The dose of potato chips consumed at each challenge was at least the amount alleged to have caused the symptoms that prompted the consumer to phone the postmarketing surveillance toll-free number. No subject experienced an allergic reaction after consuming the olestra-containing chips. Nor did any subject elicit a positive response to olestra following the skin prick testing. Two subjects had positive reactions consistent with immediate hypersensitivity after consuming the regular-fat, placebo potato chips. The results of this study confirm that olestra is unlikely to have an allergenic potential.

Adult↗

PubMed1994

Mycoflora, and mycotoxins production in Nigerian corn and corn-based snacks.

Thirty-one fungal species, mostly toxigenic and belonging to 11 genera were isolated from corn, corn cake and corn roll snack samples. Aspergillus, Penicillium and Fusarium accounted for 10, 6 and 3 of the species and altogether, they constituted 90, 94 and 88 percent of the total fungi in corn, corn cake and corn roll snack respectively. Mycotoxins (aflatoxins and ochratoxin A) were detected in 45, 80 and 12 percent while the means and ranges of the total aflatoxins recorded were: 200(25-770 ppb); 233(15-1070 ppb) and 55(10-160 ppb) for corn, corn cake and corn roll snack samples respectively. Ochratoxin A was detected at toxicologically significant levels in only 15 percent of the corn cake samples analyzed. All the strains of Aspergillus flavus and A. ochraceus tested produced aflatoxin B and ochratoxin A, respectively, when they were cultured on each of the three substrates. In each case, substantial quantities of the toxins were produced from 25 to 35 degrees C with the peak level recorded at 30 degrees C. Toxin production was detected only in substrates with 15 percent moisture content and above; reaching the maximum at 25 or 30 percent moisture level. No substantial differences in the amount of toxins were elaborated with further increase in substrates' moisture content. Of the three substrates, corn cake was the most suitable for aflatoxin B production while they were all equally suitable for the elaboration of ochratoxin A.

Aflatoxin B1↗

PubMed1982

Naturalistic observation of the snack-selecting behavior of obese and nonobese children.

No previous study has examined the snack-selecting behavior of children although information from such a study may be useful in preventing and treating obesity or in determining its etiology. To provide data on this behavior, male (n=190) and female (n=166) children were unobtrusively observed purchasing snacks in either of two movie theaters. The amount of soft drinks and snack foods that were selected was recorded, and the corresponding caloric values were determined. Ratings were also made for obesity and sex. No differences for obesity or sex emerged on the measure of amount of calories selected. The implications of these results for the treatment of obesity are discussed.

Child↗

PubMed2006

The effect of three snack bars on glycemic response in healthy adults.

Many consumers prefer convenient, portable, and preportioned snack foods. Foods with a lower glycemic response are associated with reduced risk for chronic disease. The glycemic index and glycemic load of three nationally available snack bars were determined. Ten subjects, with mean age (+/-standard deviation) of 29+/-7 years and mean body mass index (+/-standard deviation) of 25.3+/-3.2, were tested on four occasions on nonconsecutive days. After an overnight fast, subjects consumed 50 g of available carbohydrate as a glucose beverage or as a portion of one of three bars: SmartZone nutrition bar (The Hershey Co, Hershey, PA), ZonePerfect nutrition bar (Abbott Laboratories, Abbott Park, IL), or SlimFast meal bar (SlimFast Foods Co, West Palm Beach, FL). Blood glucose was tested at 0, 15, 30, 45, 60, 90, and 120 minutes after consumption. Incremental area under the glucose response curve was calculated for each test bar and compared with that of the glucose beverage to determine glycemic index. The glycemic index (+/-standard error of the mean) for SmartZone was 10.9+/-3.9 and was significantly less (P<0.05) than that of ZonePerfect (43.7+/-7.3) or SlimFast (63.8+/-13.0). The glycemic loads (+/-standard error of the mean) for the SmartZone (2.0+/-0.7) and ZonePerfect (8.3+/-1.4) bars were significantly less (P<0.05) than the glycemic load of the SlimFast bar (21.1+/-4.3). Although the long-term impact of snack foods with a lower glycemic load requires further research, the SmartZone and ZonePerfect bars provide a lower glycemic response for consumers.

Adult↗

PubMedDate not supplied

The effect of single serving versus entire package nutritional information on consumption norms and actual consumption of a snack food.

OBJECTIVE: Increasing serving sizes have been identified as contributors to the obesity epidemic. Researchers suggest that consumers are in need of cues that provide norms for the appropriate amount of food to consume. The impact of one potential cue, the provision of nutritional information for a single serving as well as the entire package ("dual-column labels") versus single-serving nutritional information only ("single-column labels"), was investigated on the consumption of a snack food for dieters and nondieters. DESIGN: In a between-subjects experimental design, participants were provided with a snack food product and nutrition label. After the opportunity for consumption, they were provided with a survey instrument. SETTING: The study took place in a classroom setting. PARTICIPANTS: Undergraduate students were randomly assigned to the single-column versus dual-column label treatment groups and were classified as dieters (n = 45) or nondieters (n = 67) based on self-reported dieting behavior. INTERVENTION: Participants were exposed to either a single-column or dual-column nutrition label. MAIN OUTCOME MEASURES: Perceptions of consumption norms; use, importance, and understanding of nutrition labels; and the actual amount consumed by each individual were measured. ANALYSIS: Analysis of variance was used to analyze data from the study. RESULTS: Nondieting participants, but not dieting participants, ate significantly less when exposed to the dual-column label compared to the single-column label (P < .05). Although there was a significant difference in the amount consumed by dieters and nondieters in the case of the single-column label (P < .05), the presence of a dual-column label attenuated this effect. In addition, dieters reported paying greater attention to (P < .01), better perceived the necessity of (P < .01), and had better understanding of (P < .05) label information than nondieters. In addition, dieters considered the provided serving to be more adequate than nondieters (P < .05). IMPLICATIONS FOR RESEARCH AND PRACTICE: Compared to standard, single-column labels, dual-column nutritional labels have a greater impact on the snack food consumption of nondieters.

Adult↗

PubMed2006

The role of breakfast and a mid-morning snack on the ability of children to concentrate at school.

The effect on the ability of children to attend to their school work, of the size of breakfast and whether a mid-morning snack had been consumed, was considered. Nine year old children were studied for four days. They reported what they had eaten for breakfast and days when they either had or had not eaten a mid-morning snack were contrasted. For an hour in the late morning, while performing individual work, activity sampling was used to establish the time spent on task. Those who had eaten a small breakfast, on average 61 kcal, spent significantly less time attending to their work than those who had eaten larger meals. The adverse effect of a small breakfast was reversed by the consumption of a mid-morning snack.

Analysis of Variance↗

PubMed2004

Comparison of energy and nutrient intakes among meals and snacks of adolescent males.

BACKGROUND: Eating behaviors developed during adolescence can have immediate health implications and influence future chronic disease risk. The objectives of this study were to determine and compare the distribution of energy and nutrient intakes among meals and snacks, and relate eating occasion frequency to body mass index (BMI) of adolescent males. METHODS: Healthy adolescent males (n = 180) completed 3-day food records. Following analysis for energy and nutrient intakes, 3-day averages and frequencies were computed for all meals and snacks. RESULTS: Dinner was the largest contributor of energy, macronutrients, cholesterol, dietary fiber, and sodium, whereas both dinner and breakfast were the largest contributors of calcium and iron. On average, subjects consumed 1.63 snacks/day, with 77% consuming > or = 1 snack/day. BMI was significantly greater and energy intake was significantly lower in subjects having < or = 3 eating occasions/day relative to 4 or > or = 6 eating occasions/day. The 26% of subjects classified as inconsistent breakfast consumers had significantly higher BMIs and lower iron intakes relative to consistent breakfast consumers. CONCLUSIONS: This study provides valuable information regarding eating occasion frequency and contribution of meals and snacks to energy and nutrient intakes in adolescent males. Such information could be used to improve nutrition education programs for adolescents aimed at chronic disease prevention.

Adolescent↗

PubMed2000

Fat and sugar levels are high in snacks purchased from student stores in middle schools.

OBJECTIVE: Children consume about one third of their daily energy at school, mostly from cafeteria food and bag lunches. Students also shop at student-run stores that generate revenue for extracurricular activities; yet the nutritional value of snacks sold at student stores has not been documented to our knowledge. DESIGN: Cross-sectional study of foods sold at student stores in middle schools. SUBJECTS/SETTING: Twenty-four San Diego County (Calif) public middle schools, grades 6 through 8 (age 11 to 13), from 9 school districts. The schools represent a diversity of ethnic groups and socioeconomic levels. STATISTICAL ANALYSES PERFORMED: Descriptive statistics, Pearson product moment correlations, analysis of variance. RESULTS: Snacks averaged 8.7 g fat and 23.0 g sugar. Overall, 88.5% of store inventory was high in fat and/or high in sugar. Sugar candy accounted for one third of store sales. Chocolate candy was highest in fat content: 15.7 g. Fourteen of the 24 schools had stores that sold food and were run by student organizations. Stores were open daily for about 90 minutes; half sold food during lunch. CONCLUSIONS: Adolescents need opportunities to supplement main meals; however, student stores in middle schools sell primarily high-fat, high-sugar snacks. Key intervention possibilities include limiting sales of chocolate candy and substituting low-fat varieties of cakes, cookies, chips, and crackers. Competition with cafeterias for sales at lunchtime should be addressed.

Adolescent↗

PubMed2000

Effect of a la carte and snack bar foods at school on children's lunchtime intake of fruits and vegetables.

OBJECTIVES: To compare lunch fruit, juice, and vegetable (FJV) intake of fourth-grade students who receive only National School Lunch Program meals and fifth-grade students who also have access to a school snack bar and to compare FJV intake by meal source among fifth-grade students. DESIGN: Cross-sectional study: students completed FJV preference questionnaires and 5 days of lunch food records in classrooms. SUBJECTS/SETTING: 312 fourth- and 282 fifth-grade students in south Texas. MAIN OUTCOME MEASURES: Mean FJV consumption. STATISTICAL ANALYSES PERFORMED: Descriptive statistics, correlation analyses, analysis of variance, analysis of covariance. RESULTS: Fourth-grade students (n = 312) consumed significantly more fruits, juices, and vegetables (0.80 serving) than fifth-grade students (n = 282) (0.60 serving). Students whose parents reported a high school education or less consumed more regular and total vegetables than students whose parents reported some college or higher education. There were no interaction effects among gender, grade, ethnic, or family education groups. Fifth-grade students who ate only snack bar meals consumed significantly less total fruits, juices, and vegetables (0.40 serving) than fifth-grade students who ate school lunch meals (0.82 serving). Controlling for FJV preferences did not change the main effect for grade level in the FJV consumption models. APPLICATIONS/CONCLUSIONS: FJV consumption during school lunch is low. School foodservice staff should identify FJV items that middle school students prefer and increase availability of those items in middle school cafeterias and snack bars.

Beverages↗

PubMed1998

Effect of providing fortified meals and between-meal snacks on energy and protein intake of hospital patients.

This study aimed to evaluate whether food fortification and snacks could increase the energy and protein intakes of hospital patients. The control group of 82 consecutive admissions on medical, elderly care and orthopaedic wards ate freely from the hospital menu. Subsequently, an intervention group of 62 patients were offered fortified food and snacks, providing an extra 22.2|g protein/day and 966 kcal/day in addition to the standard menu. Fortification significantly increased energy intake in the intervention group (P = 0.007, independent samples t-test), having the greatest effect on groups with the lowest energy intake, that is male and female orthopaedic, female medical and female elderly patients (84 cent of total). The increases in energy intake were 21.3 cent, 21.4 cent, 23 cent and 19.6 cent respectively. Although the increased energy and protein intake represented 25.6 cent and 22.5 cent respectively, of the supplements given, and suggested that wastage was high, it was nevertheless sufficient to remove energy deficit. We therefore propose that provision of fortified food and snacks is a convenient method of improving the nutritional intakes of hospital patients.

Adult↗

PubMed1998

Three squares or mostly snacks--what do teens really eat? A sociodemographic study of meal patterns.

PURPOSE: To categorize U.S. adolescents' meal patterns and related differences in dietary quality. METHODS: Using data from the Continuing Survey of Food Intake by Individuals, 1989-1991, meal patterns from 3 days of adolescents' (ages 11-18 years) intake (n = 1310) were examined. Consistency of meal pattern intake and associated nutrient quality was determined. Logistic regression was used to examine the effects of several sociodemographic characteristics on meal pattern consistency. RESULTS: A higher percentage of adolescents consumed a meal pattern that included 3 meals/day than any other meal pattern: 57.4-58.7% on any given day. Forty-one percent of adolescents fell into the consistent (at least two meals on all 3 days), and only 3.5% fell into the inconsistent meal (one meal, with or without snacks, or snacks only, on all 3 days) pattern category. Logistic regression results indicated that being black [adjusted odds ratio (AOR) = 4.19, 95% confidence interval (CI) (1.90, 9.27)], older (15-18) [AOR = 1.41, 95% CI (1.19, 1.67)], and from a single-parent household [AOR = 2.60, 95% CI (1.23, 5.52)] were predictive of an inconsistent meal pattern. School lunch has a positive impact on intake, increasing a consistent meal pattern from 36.0% to 44.9%. CONCLUSIONS: Adolescents who consume at least two meals (with or without snacks) on a consistent basis have an adequate intake of calories and a more nutrient-dense diet with respect to calcium, iron, vitamin E, and fiber than those with other meal patterns. From the perspective of following a diet to prevent chronic diseases in adulthood, adolescents regardless of meal pattern, consume a diet that is too high in fat, sodium, and protein, and too low in fiber.

Adolescent↗

PubMed2003

Patterns of overweight, inactivity, and snacking in Chinese children.

OBJECTIVE: To examine patterns of inactivity and snacking and their relationship with overweight status in Chinese children. RESEARCH METHODS AND PROCEDURES: The study population was drawn from the 1997 China Health National Survey (1385 children, ages 6 to 11 years), conducted with a representative sample from nine provinces. The 2000 Centers for Disease Control and Prevention BMI charts were used to calculate "at risk of overweight" as those above the 85th percentile. Three days of 24-hour recall dietary data and detailed questions on physical activity and inactivity for the previous 7 days were used. RESULTS: 9.4% of the children were classified as overweight. Weekly mean and range of hours spent watching television/videos, playing video games, studying, and in inactive transport were 5.1 (0 to 35), 0.3 (0 to 10), 4.7 (0 to 60), and 0.14 (0 to 4.2), respectively. Television/video viewing and studying did not differ in any meaningful manner between overweight and normal weight children. Snacking is inconsequential in China, comprising only 0.9% of energy intake. DISCUSSION: Chinese children are less overweight, less inactive, and less likely to ingest calories as snacks than children in the U.S. The absence of impact of these measures of inactivity, which are below an hour per day for the average Chinese child, indicate the possible value of limiting television viewing and other types of inactivity in other countries. Modern Western-style television programming and advertising started to come to China after 1997; therefore, extensive changes in television viewing patterns are expected to emerge.

Child↗

PubMed1990

Snack foods and dental caries. Investigations using laboratory animals.

The nation's eating habits are undergoing major transformation, with a swing away from traditional meals to a huge increase in snack consumption, but very little is known of the nutritional and dental implications of this change. The research project reported here evaluated a range of snack foods in caries-active laboratory animals, comparing them, as dietary ingredients, with noncariogenic and cariogenic (sugar) diets. The findings showed the very low cariogenicity of salted peanuts, followed by ready-salted and salt and vinegar crisps, extruded maize, mixed-starch and prefabricated/fried potato products, and cheese-filled puffs. Other varieties of crisps (cheese and onion and special shapes) proved to be more cariogenic, not far short of semi-sweet biscuits in some cases. It is concluded that the severity of the processing undergone by the snack foods and the nature of the flavouring agents with which they are coated can influence their dental properties.

Analysis of Variance↗

PubMed2005

Development and testing of a computerised 24-h recall questionnaire measuring fruit and snack consumption among 9-11 year olds.

OBJECTIVE: To evaluate the validity, reliability and sensitivity of a computerised single day 24-h recall questionnaire designed for the comparison of children's fruit and snack consumption at the group (school) level. DESIGN: Relative validity and reliability were assessed in relation to (i) intake at school and (ii) intake throughout the whole day, using diary-assisted 24-h recall interviews and a 7-day test-retest procedure. Sensitivity was assessed in relation to intake by comparing results from schools with differing food policies, and by sex. SUBJECTS AND SETTING: Eight schools took part in the validity and reliability assessments, with 78 children completing the 24-h recall interviews and 195 children completing the test-retest procedure. A total of 43 schools (1890 children) took part in the sensitivity analysis. All children were aged 9-11 y. All schools were in South Wales and South-west England. RESULTS: For fruit intake at school, the questionnaire showed fair levels of validity at the individual level (kappa = 0.29). At the group level, there were little or no differences in fruit intake at school between the two measures and two occasions. The questionnaire was sufficiently sensitive to identify statistically significant differences between girls and boys, and between schools with different food policies. For snack intake at school, validity at the individual level was slightly lower (kappa = 0.220.25), but the data remained of value in analyses at the group level. For fruit and snack intake throughout the whole day there was little agreement at the individual level (kappa = 0.00-0.06), and at the group level there tended to be substantial differences between the two measures and two occasions. CONCLUSIONS: The computerised questionnaire is a quick and cost-effective means of assessing children's consumption of fruit at school. While further development is required to improve validity and reliability, it has the potential to be particularly useful in randomised controlled trials of school-based dietary interventions.

Candy↗

PubMed2005

Why do adolescents eat what they eat? Personal and social environmental predictors of fruit, snack and breakfast consumption among 12-14-year-old Dutch students.

OBJECTIVE: The aim of the study was to investigate the relative importance of personal and social environmental predictors of the consumption of fruit, high-fat snacks and breakfast. DESIGN: A school-based cross-sectional survey. Data were collected through written questionnaires. SETTING: Students from eight schools in the southern part of The Netherlands. SUBJECTS: Six hundred and one students from preparatory secondary vocational education schools. RESULTS: About a quarter of the variation in actual behaviours and intentions to change the behaviours could be explained. Stepwise multiple regression analysis revealed that, for all three behaviours, higher intention to change was especially associated with a more positive attitude and subjective norm, and higher intentions to increase fruit intake with more positive self-efficacy expectations. With regard to actual consumption, a more positive attitude towards eating fruit was the only significant correlate of a higher consumption of fruit. A more positive attitude towards eating high-fat snacks, perceived lower intake of the mother, and higher food availability and accessibility were associated with consumption of high-fat snacks, and a more positive attitude to breakfast more frequently was associated with more frequent breakfast consumption. CONCLUSION: The results indicate that adolescents' attitudes are the most important determinants of different health-related eating behaviours and intentions to change. Interventions promoting a healthy diet for adolescents should include creative strategies to achieve positive associations with healthy dietary changes.

Adolescent↗