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Article
Publication date: 13 July 2012

Pooja R. Singhania and Kasturi Sen Ray

Rice is considered a high glycemic index food. However, the overall glycemic response to whole foods differs based on the presence of co‐components, cooking or processing…

Abstract

Purpose

Rice is considered a high glycemic index food. However, the overall glycemic response to whole foods differs based on the presence of co‐components, cooking or processing technique, starch composition, and amount of food consumed. The purpose of this paper is to observe the relative glycemic impact (RGI) of foods based on postprandial glycemic response to equal quantities of test foods and standard‐bread expressed as glycemic bread equivalent (GBE), using rice and its products.

Design/methodology/approach

In total, five clinically healthy adult volunteers were fed 50 g test foods and bread on different days after an overnight fast. Blood sugar and insulin levels at fasting state and at 30, 60, 90 and 120 min after consuming food were recorded and corresponding area under the curve was calculated.

Findings

The GBE was highest for puffed rice at 107 g, whereas same amount of rice kheer and plain boiled rice induced glycemic response equivalent to 19.5 g and 11 g of bread, respectively. RGI of puffed rice was found to be significantly higher than that of rice kheer and boiled rice (p<0.01). Similarly, the total insulinemic effect of puffed rice (71 g) was found to be significantly higher than that of rice (6 g, p<0.01) and rice kheer (19 g, p<0.05).

Practical implications

Despite being prepared from common raw ingredient, all the three test foods produced varied glycemic and insulin responses. This can be attributed to the different processing conditions, change in nutrient composition and total quantity consumed.

Originality/value

The GBE values may constitute a simple and easy‐to‐use tool for consumers to select food in terms of their predicted glycemic and insulin responses, especially in the diabetic or insulin‐resistant group.

Details

Nutrition & Food Science, vol. 42 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 18 May 2012

Pooja R. Singhania and Kasturi Senray

Starchy foods have been emphasized in the diet for reducing hyperglycemia and hyperinsulinemia. However, all starch containing foods respond differently, depending upon various…

Abstract

Purpose

Starchy foods have been emphasized in the diet for reducing hyperglycemia and hyperinsulinemia. However, all starch containing foods respond differently, depending upon various other factors in food such as the amylose:amylopectin ratio, co‐ingredients, methods of cooking, etc. which also impact its metabolic response. During days of fast, in India, potato and sago are the most commonly used food to provide quick source of energy. The purpose of this paper is to determine the functional and nutritional quality of fasting foods such as potato and sago, having higher amylopectin content, with respect to their relative glycemic and insulin response in normal healthy volunteers.

Design/methodology/approach

The postprandial glycemic response to boiled potato and sago khichdi in relation to equal quantity of bread (reference) was compared using Relative Glycemic Potency (RGP) represented as the Glycemic Bread Equivalent (GBE) of foods. Five clinically healthy subjects were fed 100 g of test foods and standard, and their blood glucose and insulin response was recorded at fasting (0 min) and at 30, 60, 90 and 120 min.

Findings

It was found that both potato and sago khichdi produced peak glucose response at 30 min and levels returned to baseline within 60 min. The higher amylopectin content which facilitates faster absorption from the gastro‐intestinal tract and into the cell results in the total area under the curve (AUC) glycemic response to potato and sago khichdi to be significantly lower than that of bread (p < 0.05). The total AUC insulin response to potato (p <0.05) and sago khichdi was also lower than that of bread.

Practical implications

Therefore, starch‐based foods rich in amylopectin lead to quicker absorption of sugar to supply the energy to the energy‐deprived cells common in fasting condition.

Originality/value

The paper shows that the starch present in these fasting foods is typically characterized by a higher amylopectin:amylose ratio.

Details

Nutrition & Food Science, vol. 42 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 1 September 2021

Camila Niclis, Diego Prado, María del Pilar Diaz, Elio Andrés Soria and Claudia Albrecht

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…

Abstract

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.

Details

Nutrition & Food Science , vol. 52 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 14 July 2020

Shonima Venugopal, Uma Iyer and Richa Sanghvi

Glycemic index (GI) is a physiological basis for ranking carbohydrate foods based on the blood glucose responses they produce after ingestion. Emblica officinalis (E. officinalis

Abstract

Purpose

Glycemic index (GI) is a physiological basis for ranking carbohydrate foods based on the blood glucose responses they produce after ingestion. Emblica officinalis (E. officinalis) is a medicinal plant that purportedly has hypoglycaemic and hypolipidemic properties. This study aims to determine the glycemic and lipemic responses of freeze-dried E. officinalis powder-incorporated recipes.

Design/methodology/approach

Two sets of four equicarbohydrate (50 g) recipes (vegetable cutlet, handvo, muthiya and methi thepla) were developed, one without E. officinalis powder incorporation (standard) and one with E. officinalis powder incorporation at the 2 g level (test). After overnight fasting, 50 g glucose, standard and test recipes were administered to healthy adult volunteers at different instances (each 3–4 days apart) and blood glucose levels were measured using capillary sampling every 15 min for 2 h. The glycemic response and GI values were then calculated.

Findings

Among the standard recipes, lowest glycemic response was obtained by methi thepla (60.90 ± 15.54) and highest glycemic response by handvo (90.57 ± 33.88). Incorporation of E. officinalis powder brought about a non-significant reduction in the GI of methi thepla (p = 0.94), vegetable cutlet (p = 0.54), muthiya (p = 0.69) and handvo (p = 0.09). Maximum per cent reduction was for handvo, which shifted from the high to medium GI category. The lipemic response was lowest with muthiya, showing a fall in triacylglycerol (TG) levels (3.9%). E. officinalis powder incorporation in muthiya led to a further fall (7.8%) in TG levels.

Originality/value

Incorporation of freeze-dried E. officinalis powder in Indian recipes can bring about a reduction in the postprandial glycemic and lipemic responses.

Details

Nutrition & Food Science , vol. 51 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 26 September 2023

Pulkit Mathur and Anjani Bakshi

The purpose of this study is to collect and assess the evidence available on the effect of non nutritive sweeteners on appetite, weight and glycemic regulation. As a replacement…

Abstract

Purpose

The purpose of this study is to collect and assess the evidence available on the effect of non nutritive sweeteners on appetite, weight and glycemic regulation. As a replacement for sugars, non-nutritive sweeteners (NNSs) are widely being used in different food products with the assumption that these would lower calorie intake and help to manage weight and blood sugar levels better. However, studies using animal models have reported that chronic exposure to NNSs leads to increased food consumption, weight gain and insulin resistance.

Design/methodology/approach

Evidence was acquired from systematic reviews or meta-analyses (2016–2021) of relevant clinical studies, especially randomized control trials using Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines.

Findings

The review showed NNSs exposure did not conclusively induce increased food intake or change in subjective appetite ratings. Appetite biomarkers like ghrelin, gastric inhibitory peptide, C-peptide levels and Peptide YY remained mostly unaffected by NNSs. Meta-analyses of human randomized control studies showed a reduced energy intake and body weight. No significant change was seen in blood glucose levels, post-prandial glycemic or insulin response after consumption of NNSs. Adequate evidence is not available to conclusively say that NNSs influence gut health at doses relevant to human use.

Research limitations/implications

Most studies which are prospective cohort, observational and cross-sectional studies suggest that use of NNSs may promote obesity and metabolic syndrome in adults. Such studies are plagued by confounding variables and reverse causation. Mechanistic evidence is mostly based on in-vitro and in-vivo studies. The same causal pathways may not be operative or relevant in humans.

Practical implications

This review of available literature concludes that to achieve specific public health and clinical goals, the safe use of NNSs for the reduction of intakes of free sugars and energy should be explored. This would be possible by educating the consumer about energy compensation and understanding the nutritional content of artificially sweetened products in terms of calories coming from fat and complex carbohydrates used in the product.

Originality/value

This study was, thus, designed with the objective of examining the usefulness of NNSs in human population, especially with respect to insulin regulation, glycemic control and weight management. Well-designed randomized control trials which control for confounding variables are needed to generate high quality evidence.

Details

Nutrition & Food Science , vol. 54 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 1 October 2005

Shane Landon

An abundance of diets advocating various different ways of losing weight have been covered in the media. This article aims to examine the latest trends and to look at how the…

1496

Abstract

Purpose

An abundance of diets advocating various different ways of losing weight have been covered in the media. This article aims to examine the latest trends and to look at how the nutrition message needs to be incorporated for effective and healthy weight management.

Design/methodology/approach

The approach taken is to summarise the current diets trends and their nutritional profile.

Findings

The issue of carbohydrates is a current hot topic with UK consumers. The Atkins diet started the current interest in the health properties of carbohydrates. This concept has evolved and led to a strong focus on the type of carbohydrate and its effect on blood glucose levels (glycaemic index, glycaemic response and glycaemic load).

Originality/value

This review offers an evaluation on the benefits and limitations of the glycaemic concept from an Australian health professional's viewpoint.

Details

Nutrition & Food Science, vol. 35 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 13 February 2017

Sherazed Hamza-Reguig, Nabila Boukhari Benahmed Daidj, Sabrine Louala, Ahmed Boualga and Myriem Lamri-Senhadji

The purpose of this study was to investigate the impact of replacing two different fats on dyslipidemia, glycemic balance and adipose tissue redox status in obese rats.

Abstract

Purpose

The purpose of this study was to investigate the impact of replacing two different fats on dyslipidemia, glycemic balance and adipose tissue redox status in obese rats.

Design/methodology/approach

Obesity was induced by feeding a high-mutton-fat diet during three months. An experimental group (n = 24) was divided into two groups that were fed during one month, 20 per cent of margarine or sardine oil. At Day 30, six rats from each group were sacrificed and the remaining rats were then subjected to a change in diet for one month: margarine was replaced by sardine oil and inversely, and then the rats were sacrificed. Three other groups (n = 6), each fed during two months, 20 per cent of margarine, sardine oil or mutton fat, served as controls.

Findings

Substitution of sardine oil by margarine compared to control sardine oil had increased triacylglycerols (TGs), glycosylated hemoglobin (HbA1c) and isoprostanes (IsoPs) values, but decreased thiobarbituric acid reactive substances (TBARS) and superoxide dismutase activity. Replacing margarine by sardine oil compared to control margarine reduced total cholesterol, TG, HbA1c, TBARS and IsoP contents but enhanced glutathione reductase and peroxidase activities. Nevertheless, comparing with the mutton fat, the two substitutions had improved glycemic and lipidic abnormalities and attenuated lipoperoxidation by enhancing enzymatic antioxidant defense. These favorable effects were better when margarine was replaced by sardine oil.

Originality/value

Substituting margarine with sardine oil seems to attenuate beneficial cardiometabolic risk markers associated to obesity and potentiate efficiency adipose tissue against the oxidative stress induced by the obesogenic diet.

Details

Nutrition & Food Science, vol. 47 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 14 February 2024

Leila Cheikh Ismail, Hadia Radwan, Tareq Osaili, Eman H. Mustafa, Fatema M. Nasereddin, Hafsa J. Saleh, Sara A. Matar, Sheima T. Saleh, Maysm N. Mohamad, Rameez Al Daour, Radhiya Al Rajaby, Eman R. Saif, Lily Stojanovska and Ayesha S. Al Dhaheri

Nutrition labels provide a cost-effective method of conveying nutrition information to consumers. This study aimed to assess the use of nutrition facts panels, knowledge of…

Abstract

Purpose

Nutrition labels provide a cost-effective method of conveying nutrition information to consumers. This study aimed to assess the use of nutrition facts panels, knowledge of traffic light labelling (TLL) and perceived healthiness of food items using TLL among consumers.

Design/methodology/approach

A web-based cross-sectional study was conducted among adults in the United Arab Emirates (UAE) (n = 1,322). TLL knowledge score was derived for each participant. Conjoint analysis was used to calculate the utilities and relative importance of the perceived healthiness scores for four attributes (fat, saturated fat, total sugar, salt) at the aggregate level.

Findings

Participants had a positive attitude towards TLL but were less familiar with TLL than the nutrition facts panel (47.4 vs 85.8%). The mean TLL knowledge score was 3.6 out of 7 (51.6%). Younger age, higher education, higher income, and health-related qualifications were associated with higher scores. Conjoint analysis showed that participants tend to choose products with greener labels, especially for sugars (80.1%) and avoid red labels for fats. Sugars had the highest percentage value of relative importance compared to the other attributes (27.1%).

Originality/value

The study outcomes offer valuable insights into the extent of consumer awareness, comprehension and utilization of nutrition facts panels in the UAE. These findings contribute essential knowledge for a deeper understanding of the impact of nutrition labels on consumer behaviour and decision-making in the region.

Details

British Food Journal, vol. 126 no. 6
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 11 November 2019

Zahra Mohebbi, Maryam Azizi-Lalabadi, Sayyed Javad Hosseini, Sajjad Abdi Nowrouzani, Mohammad Alizadeh and Aziz Homayouni

The enrichment of bread with non-digestible prebiotic ingredients may exert health-promoting effects and provide healthier food choices for those suffering from metabolic…

Abstract

Purpose

The enrichment of bread with non-digestible prebiotic ingredients may exert health-promoting effects and provide healthier food choices for those suffering from metabolic diseases, including obesity and diabetes. The purpose of this study was to investigate the effects of ß-glucan and resistant starch incorporation on the glycemic index (GI) and glycemic load (GL) of white bread.

Design/methodology/approach

Seven different formulations of prebiotic bread were produced using different proportions of ß-glucan (0.8, 1 and 1.2 per cent), resistant starch (5.5, 8 and 10.5 per cent) and the combination of resistant starch and ß-glucan in a ratio of 4:0.5.

Findings

The GI and GL of the prebiotic bread prepared with 1 per cent ß-glucan (w/w) were 55.7 and 7.8, respectively, whereas those of the prebiotic bread prepared with 8 per cent resistant starch (w/w) were 64.8 and 8.42, respectively, with both breads having significantly lower GI and GL values than the control (P < 0.05). It was concluded that the incorporation of 1 per cent ß-glucan may be beneficial in producing prebiotic bread with both low GI and low GL.

Originality/value

Although white bread is a main food source in human diet, its high GI and GL make it an unhealthy food choice. The incorporation of ingredients with prebiotic effects, such as ß-glucan and resistant starch, can improve the nutritional value of this product by lowering its GI and GL.

Details

Nutrition & Food Science, vol. 49 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 13 July 2015

Emma Derbyshire and Carrie Ruxton

This review aims to evaluate and review literature published in the area of rising concerns that red meat consumption may be associated with risk of type 2 diabetes mellitus…

Abstract

Purpose

This review aims to evaluate and review literature published in the area of rising concerns that red meat consumption may be associated with risk of type 2 diabetes mellitus (T2DM), although there have been discrepancies between study findings, and put the findings into context.

Design/methodology/approach

Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a systematic literature review was undertaken to locate and summarise relevant studies which included epidemiological and clinical studies published between 2004 and 2014.

Findings

A total of 23 studies were found, with 21 epidemiological and two clinical studies meeting the criteria. Overall, the totality of the evidence indicates that while processed meat consumption appears to be associated with T2DM risk, the effect is much weaker for red meat, with some associations attenuated after controlling for body weight parameters. Where studies have considered high intakes in relation to T2DM risk, meat intake has tended to exceed 600 g per week. Therefore, keeping red meat intakes within recommended guidelines of no more than 500 g per week, while opting for lean cuts or trimming fat, would seem to be an evidence-based response.

Research limitations/implications

The majority of studies conducted to date have been observational cohorts which cannot determine cause and effect. Most of these used food frequency questionnaires which are known to be subject to misclassification errors (Brown, 2006). Clearly, more randomised controlled trials are needed to establish whether red meat consumption impacts on markers of glucose control. Until then, conclusions can only be viewed as speculative.

Originality/value

This paper provides an up-to-date systematic review of the literature, looking at inter-relationships between red meat consumption and T2DM risk.

Details

Nutrition & Food Science, vol. 45 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

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