Nutrition & Food Science
ISSN : 0034-6659
Published by: Emerald (10.1108)
Total articles ≅ 5,042
Latest articles in this journal
Nutrition & Food Science; https://doi.org/10.1108/nfs-06-2021-0177
Purpose This conceptual paper aims to study the Corona Virus Disease-19 (COVID-19) pandemic’s impact on branded functional beverages consumption in India. There is a sincere effort to critically review the role of some vital determinants of consumer behaviour and to develop an integrated model for branded functional beverages consumption behaviour. Design/methodology/approach A systematic and extensive literature review was performed by searching electronic databases relating to consumer acceptance and purchase behaviour of functional beverages in India from 2000 to 2021. This study also reviewed very recent literature on the potential impact of the COVID-19 pandemic on global consumer traits, buying behaviour, marketing trends and psychographic behaviour. Findings The extensive review of the literature yielded results that shed light on some crucial factors propelling branded functional beverages’ consumption behaviour in India, especially in the COVID-19 scenario. Research limitations/implications The study is based purely on a conceptual understanding of branded functional beverages’ consumption behaviour among Indian consumers. The conceptual framework proposed here results from the review of past literature. Therefore, the scientific world is invigorated to test further the implications presented in this study empirically. Practical implications The conceptual framework proposed here concerning consumer behaviour in functional beverages would guide the food marketers to segment and position their functional food offerings, mainly beverage variants, in the post-pandemic scenario. Moreover, the study findings enable policymakers to craft food policies to uphold the noble cause of moulding a healthy generation. Originality/value The COVID-19 pandemic has virtually shattered our food system and modified our associations with food in many different ways. The perception of health risks associated with COVID-19 might have influenced people’s food purchase and consumption behaviours. It is proposed that health-conscious people would prefer more health-promoting foods and beverages to strengthen their immunity. Several reports disclose that food consumers in India demand functional foods and beverages more extensively than before to include in their daily food basket. A detailed literature review revealed an evident shortage of research studies regarding consumer behaviour in functional beverages in India. No prior research works could be identified as to why consumers prefer functional beverages to benefit their overall health and immunity and what guides them to purchase or not to purchase such products, especially in the post-pandemic scenario. Therefore, this research work would be a primer that would guide future studies investigating consumers’ attitudes and purchasing behaviour of branded functional beverages.
Nutrition & Food Science; https://doi.org/10.1108/nfs-04-2021-0134
Purpose This paper aims to study the effect of the flavonoid fraction of chayote (Sechium edule (Jacq.) Sw) leaves (FFCL) on uric acid (UA) levels, oxidative stress and inflammatory markers in hyperuricemia rats. Design/methodology/approach In total, 30 Sprague–Dawley rats were divided randomly into 5 groups. A healthy control group was established. Hyperuricemia was induced by the administration of block broth and potassium oxonate for three weeks. FFCL at dosages of 50 and 100 mg/200 g BW/d or allopurinol at a dosage of 1.8 mg/200 g BW/d was given orally for 2 weeks. Statistical analysis was conducted to evaluate differences among groups before and after the intervention. Findings Treatment with two different doses FFCL (50 and 100 mg/200 g BW/d) and one dose of allopurinol (1.8 mg/200 g BW/d) for 2 weeks significantly reduced UA from 8.04 ± 0.23 to 3.88 ± 0.10; 8.03 ± 0.18 to 2.87 ± 0.10; 8.23 ± 0.21 to 2.53 ± 0.19 (p < 0.05), respectively. The oxidative stress marker malondialdehyde levels were reduced (p = 0.001) from 9.68 ± 0.28 to 4.06 ± 0.58; 10.01 ± 0.23 to 2.12 ± 0.09; 9.88 ± 0.21 to 2.02 ± 0.17 (p = 0.001). The inflammatory marker tumor necrosis factor-α (TNF-α) levels were also reduced from 26.43 ± 0.87 to 12.20 ± 0.32; 27.38 ± 0.53 to 9.60 ± 0.53; 27.55 ± 0.68 to 8.83 ± 0.21 with p = 0.001. The 100 mg/200 g BW/d FFCL decreased UA levels, oxidative stress and inflammatory markers more extensively compared to 50 mg/200 g BW/d FFCL. Research limitations/implications This study includes some limitations that may affect the generalizability of its findings. First, the flavonoid levels of FFCL were not measured. Second, other oxidative stress biomarkers (e.g. superoxide dismutase) and inflammatory biomarkers (e.g. IL-6) were not investigated. Finally, the experiments were conducted on the model animals over a relatively short period of time. Further research is needed to evaluate the effect in humans at chronic use. Practical implications Chayote (Sechium edule (Jacq.) Sw) leaves are rich in flavonoids, especially apigenin and luteolin, which can improve oxidative stress and inflammation conditions caused by hyperuricemia. Social implications Hyperuricemia is a risk factor for non-communicable diseases, mostly caused by oxidative stress and inflammation in the body due to high levels of UA, one of the treatment strategies is through diet modification. Originality/value The results of this investigation imply that the administration of the flavonoid fraction of chayote leaves has significant effects on UA and oxidative stress and inflammatory markers. Further research is necessary to confirm the results.
Nutrition & Food Science; https://doi.org/10.1108/nfs-07-2021-0208
Purpose The purpose of this paper is to review the nutritional composition, phytochemicals and bioactive compounds of black rice such as flavonoids, phenolic compounds and their health benefits. Black rice has also been used in medicine and for curing diabetes, obesity, cardiovascular diseases and cancer. Green technologies such as microwave-assisted extraction, supercritical fluid extraction and pulse electric field assisted extraction are very useful for the extraction of bioactive compounds as these reduce the use of energy and are environmental friendly. Black rice in different forms can be incorporated in various food products such as bakery, dairy and meat products. Design/methodology/approach Information and data were collected from different sources such as Google Scholar, Research Gate, online journals available at Banaras Hindu University library, Web of Science and Scopus. A database of more than 80 scientific sources from different sources was made as per the headings and subheadings of the paper. Findings Black rice is a type of rice species (Oryza sativa L.) and very good source of various nutrients and one of the nutritious varieties of rice. It is a good reservoir of essential amino acids such as lysine, tryptophan, minerals including iron, calcium, phosphorus, zinc and selenium; vitamins such as vitamin B1, vitamin B2 and folic acid. Various recent methods of extraction of bioactive compounds from black rice are suggested. Originality/value Researchers and scientists have considered black rice as a “Super Food” because of its nutritional profile. Black rice has antioxidant activity, anti-inflammatory activity, anticancer activity, antihyperlipidemia and antihyperglycemia and anti-allergic activity. There is a need to create awareness among the consumers about its nutritional profile and therapeutic properties.
Nutrition & Food Science; https://doi.org/10.1108/nfs-05-2021-0153
Purpose The purposes of this study were to determine the food intake purchased from the canteens or markets nearby schools; to estimate the percent intakes of energy and nutrients from canteens and markets nearby the schools as a percent of total energy and nutrient intakes; and to evaluate the association between dietary intake of energy and nutrients eaten from school canteens and markets nearby the school and body weight status. Design/methodology/approach A sample of 398 students, aged 14–18 years, was recruited from schools in Amman/Jordan. Students’ body weights and heights were measured and socio-demographic data and three days food record were collected. Findings The intakes of boy students from school canteens were significantly higher than those of girls in carbohydrate (g) (125 ± 6 vs 106 ± 6; p = 0.015), energy from saturated fatty acid (Kcal) (97 ± 4 vs 84 ± 5; p = 0.006), sugar (g) (43 ± 3 vs 35 ± 2; p = 0.009) and fiber (g) (6 ± 0 vs 6 ± 0; p = 0.02). Regarding food groups consumed from markets nearby schools, there were significant differences between boys and girls intake (in which the higher intake was detected in girls as compared to boys) of sweets (g) (4 ± 1 vs 3 ± 2; p = 0.017), soft drinks (ml) (28 ± 5 vs 20 ± 5; p = 0.024) and milk (ml)/milk substitutes (g) (5 ± 2 vs 0 ± 0; p = 0.001). Sugar-sweetened beverages and crackers/snacks consumption was significantly higher in boys as compared to girls. There was a significant relationship between BMI and intakes of sugar, fat, vitamin E and calcium from school canteens. Originality/value The contribution of foods from canteens and markets nearby schools was high, with high content of fats, salt and sugar, implying that there is a vital need to establish a strategy and plan of action to fight malnutrition and reduce the intake of unhealthy foods in the school environment in Jordan.
Nutrition & Food Science; https://doi.org/10.1108/nfs-06-2021-0172
Purpose Hyperglycemic diets are a critical risk factor for diabetes and other chronic diseases; therefore, food innovation is encouraged. In this sense, starchy foods with a better postprandial glycemic response (PGR) could contribute to disease prevention for consumers. This study aims to evaluate the effect of three biscuit formulations on glycemic indicators – in general, and by sex – and their acceptability. Design/methodology/approach The authors analyzed the nutritional composition of biscuits A, B and C (high, moderate and low fiber content, respectively, among other differences) and the PGR, glycemic index (GI) and glycemic load (GL) after being consumed by 15 healthy adults. A sensory evaluation was also performed (n = 54 subjects). An analysis of variance and generalized linear models were fitted to estimate the effect of formulations on glycemic indicators, including interactions by sex. Findings For samples A, B and C (classic biscuit) the GI was 50, 54 and 51, respectively. The formulations did not show differences in the GI or GL. Lower values of PGR were observed in women (p = 0.01) and inverse effects on glycemia in all formulations in women with respect to formulation C in men were found. Calories, fiber and monounsaturated fats showed inverse effects on the PGR, GI and GL. Sample A had the highest value of acceptability (86.1%), considering all attributes assessed. Originality/value A sex-related effect in glycemia was found, with all formulations triggered a better PGR in women. The nutritional profile of biscuits can be improved while maintaining palatability.
Nutrition & Food Science; https://doi.org/10.1108/nfs-02-2021-0069
Purpose Innovative health-promoting approaches of the era have verified phytoceutics as one of the prime therapeutic tools to alleviate numerous health-related ailments. The purpose of this paper is to probe the nutraceutic potential of ginger flowers and leaves against hyperglycemia. Design/methodology/approach The aqueous extracts of ginger flowers and leaves were observed on Sprague Dawley rats for 8 weeks. Two parallel studies were carried out based on dietary regimes: control and hyperglycemic diets. At the end of the experimental modus, the overnight fed rats were killed to determine the concentration of glucose and insulin in serum. The insulin resistance and insulin secretions were also calculated by formulae by considering fasting glucose and fasting insulin concentrations. Furthermore, the feed and drink intakes, body weight gain and hematological analysis were also carried out. Findings In streptozotocin-induced hyperglycemic rats, the ginger flowers extract depicted 5.62% reduction; however, ginger leaves extract reduced the glucose concentration up to 7.11% (p = 0.001). Similarly, ginger flowers extract uplifted the insulin concentration up to 3.07%, while, by ginger leaves extract, the insulin value increased to 4.11% (p = 0.002). For the insulin resistance, the ginger flower showed 5.32% decrease; however, the insulin resistance was reduced to 6.48% by ginger leaves (p = 0.014). Moreover, the insulin secretion increased to 18.9% by flower extract and 21.8% by ginger leave extract (p = 0.001). The feed intake and body weight gain increased momentously by the addition of ginger flowers and leaves; however, the drink intake and hematological analysis remained non-significant by the addition of ginger parts. Originality/value Conclusively, it was revealed that leaves have more hypoglycemic potential as compared to flowers.
Nutrition & Food Science; https://doi.org/10.1108/nfs-04-2021-0136
Purpose There is a relationship between eating behaviours and the development of speech-language competences during childhood. This study aims to evaluate the impact of interdisciplinary sessions on food and speech-language education with children’s parents. Design/methodology/approach The session was focused on healthy eating habits and behaviours that may improve or impair child speech competence. Using a self-administered questionnaire, before and immediately after the session, parents from 11 preschools, answered 12 questions, on a five-point Likert scale. Questionnaires from the final sample (n = 96) were statistically analysed using the Wilcoxon Signed-Rank Test. Findings Statistical analysis revealed statistically significant differences in answers to six questions between pre and post intervention: items 1 (Z = −5.04; p < 0.001), 2 (Z = −3.68; p < 0.001), 3 (Z = −4.12; p < 0.001), 4 (Z = −5.87; p < 0.001), 9 (Z = −2.73; p = 0.006) and 12 (Z = −2.00; p = 0.046). The questionnaire responses after the session showed that parents became more aware of the relationship between the two areas addressed. In addition, the subjects presented more assertiveness in their answers after the educational intervention of the nutritionist and the speech therapist. Practical implications The study showed the importance of associating topics on food and speech-language education and both being addressed simultaneously to parents. The empowerment of parents and other caregivers about feeding and speech-language development may increase their motivation to foster child healthy eating behaviours. It is also desirable to extend this kind of interdisciplinary intervention to other preschools. Originality/value This study fulfils an identified need to study the perceived knowledge of parents about the food-related behaviours influencing speech-language competences of children.
Nutrition & Food Science; https://doi.org/10.1108/nfs-03-2021-0105
Purpose The purpose of the study was to assess the association between iron intake and anaemia during pregnancy as well as estimate the prevalence and magnitude of anaemia in pregnancy. Design/methodology/approach A retrospective case-control study was conducted on 383 postnatal women at four health-care facilities. Data on iron supplementation and haemoglobin (Hb) levels during pregnancy was collected from the respondents. Spearman, Pearson Chi-square tests of independence were used to measure associations between variables, whereas a log-linear model was adopted to ascertain the level of interaction among variables. All p-values < 0.05 were considered statistically significant. Findings Results show 54.3% prevalence of anaemia at registration and 33.6% at 36 weeks of pregnancy, p < 0.001. Iron supplement intake during pregnancy was 96.3%. The log-linear analysis model retained the Parity × Marital Status interaction across the levels of anaemia (p < 0.001). Relative to married pregnant women, single pregnant women were 6.38% more likely to be anaemic (OR = 1.06). Research limitations/implications One of the limitations of retrospective studies is recall bias; however, this was likely to be minimal, as participants were approached within 8 days after delivery. Despite this, this study still holds promise as it reports a rather high prevalence of anaemia at 36 weeks even with the high intake of iron. Originality/value Anaemia in pregnancy is a major public health issue because of the consequential outcomes on maternal and child health. The study identified a high prevalence of anaemia at registration; which could be the basis for intensifying pre-natal iron supplementation before pregnancy.
Nutrition & Food Science; https://doi.org/10.1108/nfs-05-2021-0148
Purpose The purpose of this study was to evaluate the increase in sensitivity of a single risperidone administration in relation to energy intake of Wistar rats treated with cafeteria diet from birth to adulthood (119 days). Design/methodology/approach During the lactation period, six litters of Wistar rats (dam + 8 pups each litter) were fed one of the following two diets: Control (n = 3) or Cafeteria (n = 3) diets and water ad libitum. After weaning, the males were placed in individual cages, receiving the same diet offered to their respective dams (Control = 18; or Cafeteria = 18) until adulthood (119 postnatal days). The following parameters were evaluated: food and energy intake; macronutrient intake; weight gain; adipose tissue relative weight; sucrose preference; food intake after an administration of risperidone (0.1 mg/kg body weight). Findings The Cafeteria group showed a higher energy intake in relation to the Control group (p < 0.001). The consumption of energy beyond the individual needs can be understood as a hyperphagic condition. Also, the Cafeteria group reported greater weight gain (p = 0.048) and accumulation of adipose tissue (p < 0.001) with respect to the Control group. These results indicate that the cafeteria diet generated obesity in animals. The Cafeteria group showed reduced sucrose preference (p = 0.031), which is associated with the development of anhedonia-like behavior. In the food intake test, risperidone showed a greater sensitivity in Cafeteria animals, promoting a decrease in their energy intake in relation to the Control group that received risperidone (p = 0.040). Originality/value The cafeteria diet promoted hyperphagia, anhedonia-like behavior and obesity in animals. Acute risperidone administration showed greater sensitivity in the Cafeteria group, with a decrease in energy intake. The reported effects may be related to a downregulation of the dopaminergic system in the NAc region.
Nutrition & Food Science; https://doi.org/10.1108/nfs-05-2021-0156
Purpose This study aims to investigate the relationships among screen time-based sedentary behaviour, eating self-regulatory skills and weight status among private university students during the Movement Control Order (MCO). Design/methodology/approach A total of 186 private university students was enrolled in this cross-sectional study using a combination of snowball and purposive sampling approaches. Anthropometric measurements, including body height, body weight before and during the MCO enforcement were self-reported by the respondents. Screen-time based sedentary behaviour sedentary behaviour was evaluated using HELENA sedentary behaviour questionnaire, whereas the Self-Regulation of Eating Behaviour Questionnaire (SREBQ) was used to determine the eating self-regulatory skills in MCO. Findings Respondents spent most of the time on the internet for non-study purposes (148 ± 77.7 min). It is also noted that 64.5% of the respondents had medium eating self-regulatory skill during the MCO, with an average score of 3.0 ± 0.5. Findings from path analysis confirmed that poor eating self-regulation significantly contributed to the weight gain during home confinement (ß = −0.24, p = 0.01). In conclusion, eating self-regulation, but not total screen time, emerged as the determinant for weight gain during the COVID-19 lockdown. Originality/value According to the authors’ knowledge, this study was among the few that investigated sedentary behaviour, eating self-regulatory skills and weight status of university students during the COVID-19 pandemic.