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Overweight and Obesity - NED Infobite
BANT's scientific NED InfoBites are designed to provide key elements of the latest research using plain language. They provide quick overviews on particular health issues and nutrition topics for a speedy introduction to the science. Visually attractive and easily shareable with clients and social media followers.
2024
Abstract
Obesity and its impact on the prevalence of diabetes and subsequent cardiovascular disease is one of the major health burdens in Western societies. Intensive lifestyle intervention programmes have been shown to be successful, even in individuals with pre-diabetes. Nutrition and lifestyle interventions targeting blood sugar regulation, fibre intake for microbiome health and healthy habits formed in childhood all have a role to play.
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Blood Sugar Dysregulation - NED Infobite
BANT's scientific NED InfoBites are designed to provide key elements of the latest research using plain language. They provide quick overviews on particular health issues and nutrition topics for a speedy introduction to the science. Visually attractive and easily shareable with clients and social media followers.
2024
Abstract
Blood sugar regulation is the process by which the levels of blood sugar, primarily glucose, are maintained by the body within an optimal biological range, called glucose homeostasis. Glucose comes from two major sources: externally from food and internally from liver (which both stores and makes glucose). Eating foods which are high in sugars on a regular basis can lead to a higher risk of developing Type 2 diabetes. The research suggests that nutrition advice that favours low GI and GL foods could produce significant cost savings for public healthcare.
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Insulin Resistance - NED Infobite
BANT's scientific NED InfoBites are designed to provide key elements of the latest research using plain language. They provide quick overviews on particular health issues and nutrition topics for a speedy introduction to the science. Visually attractive and easily shareable with clients and social media followers.
2024
Abstract
Insulin resistance is when cells in the body become less sensitive to the actions of insulin, the hormone that controls blood glucose levels. This BANT Infobite brings the latest science on the impacts of exercise, microbiome manipulation and dietary interventions on insulin sensitivity and resistance.
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Blood Sugar and Nutrition - NED Infobite
BANT's scientific NED InfoBites are designed to provide key elements of the latest research using plain language. They provide quick overviews on particular health issues and nutrition topics for a speedy introduction to the science. Visually attractive and easily shareable with clients and social media followers.
2024
Abstract
The links between dietary intake and blood sugar are clear. This BANT Infobite highlights some of the latest science on different dietary interventions and ways of eating that have demonstrated the impact of food on blood sugar dysregulation.
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Microbiome and Gut Health - NED Infobite
BANT's scientific NED InfoBites are designed to provide key elements of the latest research using plain language. They provide quick overviews on particular health issues and nutrition topics for a speedy introduction to the science. Visually attractive and easily shareable with clients and social media followers.
2024
Abstract
There is increasing evidence that the gut microbiome may play a role in metabolic syndrome disorders. This BANT Infobite highlights some of the latest research on the interaction of the gut microbiome and metabolism, with particular focus on blood glucose management, blood pressure, cholesterol levels and obesity.
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Ultra-processed Foods and Drinks - NED Infobite
BANT's scientific NED InfoBites are designed to provide key elements of the latest research using plain language. They provide quick overviews on particular health issues and nutrition topics for a speedy introduction to the science. Visually attractive and easily shareable with clients and social media followers.
2024
Abstract
Ultra-processed foods and drinks (UPF) are mostly or entirely lacking in whole foods and fibre and are often high is salt, fat, sugars and chemical additives. Regular consumption of these foods and drinks has been associated with obesity and metabolic dysregulation. This NED Infobite includes articles on childhood health impacts of UPF consumption and associations between UPFs and Type 2 diabetes, hypertension and low-grade inflammation.
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A starch- and sucrose-reduced diet may lead to improvement of intestinal and extraintestinal symptoms in more conditions than irritable bowel syndrome and congenital sucrase-isomaltase deficiency.
Roth, B, Ohlsson, B
Nutrition (Burbank, Los Angeles County, Calif.). 2024;117:112254
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Studies have shown that a starch and sucrose-reduced diet (SSRD) leads to considerable improvements of gastrointestinal and extraintestinal symptoms in patients with irritable bowel syndrome (IBS). The purpose of this pilot study was to see if a SSRD would be beneficial in other conditions with similar symptoms. Two people took part in the study. A man with functional diarrhoea and a woman with microscopic colitis. The SSRD consists of low intakes of sugar-rich products, but continued or increased intakes of all meats and fish, fat, natural dairy products, eggs, berries, fruits, nuts, seeds, and vegetables low in starch. Fiber-rich bread and pasta and raw or wild rice were recommended instead of white bread and more processed rice and pasta. During the 4-week intervention, the participants lost weight and waist circumference reduced. The degree of satiety after a meal was increased and the sweet cravings were strongly reduced. The gastrointestinal symptoms improved in the participant with diarrhoea but was unaffected in the participant with microscopic colitis. Reductions of diarrhoea and of bloating and flatulence were most pronounced in both patients. The psychological well-being was improved during the intervention. Extraintestinal symptoms were also reduced during the SSRD, especially urinary urgency and belching. This is a small intervention study and therefore not possible to make generalised claims or recommendations. However, healthcare practitioners could look at SSRD when working with IBS patients as a therapeutic dietary option.
Abstract
OBJECTIVES A starch- and sucrose-reduced diet has been found to improve gastrointestinal and extraintestinal symptoms in irritable bowel syndrome, as well as reduce weight and improve psychological well-being. Our hypothesis was that a starch- and sucrose-reduced diet would also be beneficial in other conditions with similar symptoms. The aim of the present research letter was to describe the role of a starch- and sucrose-reduced diet in a pilot project in patients with diarrhea having varying causes. METHODS One man, age 36 y, suffering from functional diarrhea and one woman, 56 y, suffering from microscopic colitis, were randomized to a starch- and sucrose-reduced diet for 4 wk. At baseline, dietary information was given, and blood samples collected. Weight and waist circumference were measured. The participants completed the irritable bowel syndrome severity scoring system for evaluating specific gastrointestinal and extraintestinal symptoms and visual analog scale for irritable bowel syndrome for evaluation of specific gastrointestinal symptoms and psychological well-being. The degrees of satiety and sweet craving were measured on visual analog scales. After 4 wk, all procedures were repeated. RESULTS Weight, body mass index, and waist circumference were decreased during the intervention. The total amount of gastrointestinal symptoms was decreased in the participants with functional diarrhea, and diarrhea and bloating were decreased in both participants. Both had reduced extraintestinal symptoms and improved psychological well-being. Blood levels had mainly unchanged or slightly increased values of measurements reflecting nutrient intake. CONCLUSIONS A starch- and sucrose-reduced diet may lead to weight reduction, reduced symptoms, and improved well-being in several patient categories, not only in patients suffering from irritable bowel syndrome. Future randomized trials should be done.
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Life expectancy can increase by up to 10 years following sustained shifts towards healthier diets in the United Kingdom.
Fadnes, LT, Celis-Morales, C, Økland, JM, Parra-Soto, S, Livingstone, KM, Ho, FK, Pell, JP, Balakrishna, R, Javadi Arjmand, E, Johansson, KA, et al
Nature food. 2023;4(11):961-965
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The mortality rate is rising in the United Kingdom (UK) due to the poor quality dietary patterns among the general population. Public Health England and the UK government recommend the population eat a healthy balanced diet based on the Eatwell Guide. Adherence to the Eatwell Guide dietary pattern could reduce the mortality rate among the general population in the UK. This research estimated the benefits of sustainably changing the unhealthy dietary pattern to the Eatwell Guide or longevity-associated dietary pattern on life expectancy in the UK. Longevity-associated dietary pattern is based on a moderate consumption of whole grains, fruit, fish and white meat; a substantial consumption of dairy, vegetables, nuts and legumes; a comparatively low consumption of eggs, red meat and sugar-sweetened beverages; and a low consumption of refined grains and processed meat. The unhealthy dietary pattern included limited amounts of whole grains, vegetables, fruits, nuts, legumes, fish, milk and dairy, and white meat and high consumption of processed meat, eggs, refined grains and sugar-sweetened beverages. This peer-reviewed review used prospective population-based cohort data from the UK Biobank. In UK adults aged 40 years, the change from an unhealthy dietary pattern to the Eatwell guide added 8.9 years in males and 8.6 years in females to their life expectancy. Furthermore, sustained adherence to the Eatwell guide increased life expectancy up to 10.8 years in males and 10.4 years in females. Further robust studies are required to evaluate the correlation between life expectancy and different food groups due to the limitations of the current research. However, healthcare professionals can use the results of this research to develop health policies and to understand the beneficial effect of following the Eatwell Guide or longevity dietary pattern in increasing life expectancy in middle-aged men and women in the UK.
Abstract
Adherence to healthy dietary patterns can prevent the development of non-communicable diseases and affect life expectancy. Here, using a prospective population-based cohort data from the UK Biobank, we show that sustained dietary change from unhealthy dietary patterns to the Eatwell Guide dietary recommendations is associated with 8.9 and 8.6 years gain in life expectancy for 40-year-old males and females, respectively. In the same population, sustained dietary change from unhealthy to longevity-associated dietary patterns is associated with 10.8 and 10.4 years gain in life expectancy in males and females, respectively. The largest gains are obtained from consuming more whole grains, nuts and fruits and less sugar-sweetened beverages and processed meats. Understanding the contribution of sustained dietary changes to life expectancy can provide guidance for the development of health policies.
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Restricting sugar or carbohydrate intake does not impact physical activity level or energy intake over 24 h despite changes in substrate use: a randomised crossover study in healthy men and women.
Hengist, A, Davies, RG, Rogers, PJ, Brunstrom, JM, van Loon, LJC, Walhin, JP, Thompson, D, Koumanov, F, Betts, JA, Gonzalez, JT
European journal of nutrition. 2023;62(2):921-940
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Diets high in carbohydrates especially when consumed in sugar-sweetened food and beverages has been shown to result in increased energy intakes in the diet. However, diets low in sugar and carbohydrates have been shown to have a limited effect on changes in body mass and weight loss. In this instance, some other mechanism is preventing weight loss. Diets low in carbohydrates have been shown to decrease physical activity levels and energy expenditure, which may be responsible for the limited weight loss seen with carbohydrate restricted diets. This randomised control trial of 25 individuals aimed to determine whether carbohydrate restriction would reduce physical activity energy expenditure over a 24-hour period compared to diets higher in sugar and/or carbohydrates. Individuals with a low dietary intake of sugar and carbohydrates and moderate intake of sugar all showed similar physical activity energy expenditure levels. Interestingly low carbohydrate intake resulted in the highest 24 hour increase in low density lipoprotein concentrations and decreased satiety hormones. It was concluded that when energy density is controlled, restricting sugar or carbohydrates has no effect on physical activity levels over a 24-hour period. This study could be used by healthcare professionals that in the very short-term low sugar and carbohydrate diets have no effect on physical activity levels but does affect metabolic changes. However studies need to be performed to determine long-term effects.
Abstract
PURPOSE To determine the effects of dietary sugar or carbohydrate restriction on physical activity energy expenditure, energy intake, and physiological outcomes across 24 h. METHODS In a randomized, open-label crossover design, twenty-five healthy men (n = 10) and women (n = 15) consumed three diets over a 24-h period: moderate carbohydrate and sugar content (MODSUG = 50% carbohydrate [20% sugars], 15% protein, 35% fat); low sugar content (LOWSUG = 50% carbohydrate [< 5% sugars], 15% protein, 35% fat); and low carbohydrate content (LOWCHO = 8% carbohydrate [< 5% sugars], 15% protein, 77% fat). Postprandial metabolic responses to a prescribed breakfast (20% EI) were monitored under laboratory conditions before an ad libitum test lunch, with subsequent diet and physical activity monitoring under free-living conditions until blood sample collection the following morning. RESULTS The MODSUG, LOWSUG and LOWCHO diets resulted in similar mean [95%CI] rates of both physical activity energy expenditure (771 [624, 919] vs. 677 [565, 789] vs. 802 [614, 991] kcal·d-1; p = 0.29] and energy intake (2071 [1794, 2347] vs. 2195 [1918, 2473] vs. 2194 [1890, 2498] kcal·d-1; P = 0.34), respectively. The LOWCHO condition elicited the lowest glycaemic and insulinaemic responses to breakfast (P < 0.01) but the highest 24-h increase in LDL-cholesterol concentrations (P < 0.001), with no differences between the MODSUG and LOWSUG treatments. Leptin concentrations decreased over 24-h of consuming LOWCHO relative to LOWSUG (p < 0.01). CONCLUSION When energy density is controlled for, restricting either sugar or total dietary carbohydrate does not modulate physical activity level or energy intake over a 24-h period (~ 19-h free-living) despite substantial metabolic changes. CLINICAL TRIALS REGISTRATION ID NCT03509610, https://clinicaltrials.gov/show/NCT03509610.
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Habitual daily intake of a sweet and fatty snack modulates reward processing in humans.
Edwin Thanarajah, S, DiFeliceantonio, AG, Albus, K, Kuzmanovic, B, Rigoux, L, Iglesias, S, Hanßen, R, Schlamann, M, Cornely, OA, Brüning, JC, et al
Cell metabolism. 2023;35(4):571-584.e6
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The prolific amount of sugar and fat in modern Western diets is regarded as a significant contributor to overeating and consequential weight gain. Dopamine, a neurotransmitter involved in learning and reward signalling, is also important in regulating food intake. Energy-dense foods, often high in both sugar and fat, stimulate pleasure-signalling dopamine to encourage eating, even if no more energy is needed. It is acknowledged that in many cases of obesity, the function of dopamine appears to be altered. Yet it is uncertain whether this was pre-existing to obesity, a result of obesity or whether it was re-shaped though exposure to high sugar and high-fat diets. To gain more insights, this study evaluated whether adding a high-fat/high-sugar (HF/HS) snack or a low-fat/low-sugar (LF/LS) snack to a regular diet could change the candidates liking for fat, their brain responses to likeable foods like fat and sugar and if it impacted on sensory associative learning. The randomised controlled study was conducted for 8-weeks and included 49 people of normal-weight. The candidates were also monitored for any changes in weight and body fat, insulin resistance, leptin levels, and blood fats, and all completed self-reported dietary intake forms. The findings demonstrated that repeated exposure to HF/HS food reduced the preference for low-fat foods and up-regulated the brain responses when anticipating and consuming such highly palatable, energy-dense foods. Beyond increased brain response to HF/HS food, HF/HS exposure also induced a general rewiring of the brain by enhancing new sensory associations and behavioural adaptations that were unrelated to food. Notably, these changes all occurred independent of weight gain or alterations in metabolic function, thus suggesting that repeated exposure to HF/HS foods can change the physiology in healthy weight individuals to reduce their liking of healthier foods whilst at the same time increasing the reward responses to more palatable HF/ HS foods. The authors highlighted this as a risk for overeating and weight gain, arguing that reducing the exposure to energy-dense HF/HS food items therefore is critical in the prevention and management of obesity.
Abstract
Western diets rich in fat and sugar promote excess calorie intake and weight gain; however, the underlying mechanisms are unclear. Despite a well-documented association between obesity and altered brain dopamine function, it remains elusive whether these alterations are (1) pre-existing, increasing the individual susceptibility to weight gain, (2) secondary to obesity, or (3) directly attributable to repeated exposure to western diet. To close this gap, we performed a randomized, controlled study (NCT05574660) with normal-weight participants exposed to a high-fat/high-sugar snack or a low-fat/low-sugar snack for 8 weeks in addition to their regular diet. The high-fat/high-sugar intervention decreased the preference for low-fat food while increasing brain response to food and associative learning independent of food cues or reward. These alterations were independent of changes in body weight and metabolic parameters, indicating a direct effect of high-fat, high-sugar foods on neurobehavioral adaptations that may increase the risk for overeating and weight gain.