food portion
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2021 ◽  
Vol 111 (12) ◽  
pp. 2091-2093
Author(s):  
Carlos A. Monteiro ◽  
Geoffrey Cannon
Keyword(s):  

2021 ◽  
Vol 3 ◽  
pp. 100007
Author(s):  
Giovana Regina Ferreira ◽  
Danielle Góes da Silva ◽  
Cesar Augusto Taconeli ◽  
Gislaine Aparecida Fitz Pierin ◽  
Henrique de Souza Lass ◽  
...  

2021 ◽  
Author(s):  
Eric Robinson ◽  
India McFarland-Lesser ◽  
Zina Patel ◽  
Andrew Jones

Background. Portion sizes of many foods have increased over time and reducing food portion sizes has been proposed as a public health strategy to reduce obesity. However, the extent to which reducing food portion sizes affects daily energy intake and body weight is unclear. Objective. To systematically review and meta-analyse experimental studies that have examined the effect that serving smaller vs. larger portion sizes has on total daily energy intake. Design. We used systematic review methodology to search identify eligible articles that used an experimental design to manipulate portion size served to human participants and measured energy intake for a minimum of one day. Multi-level meta-analysis was used to used to pool effects of portion size on daily energy intake. Results. Fourteen eligible studies were included and 85 effects were included in the primary meta-analysis. There was a moderate-to-large reduction in daily energy intake when comparing smaller vs. larger portions (SMD = -.709 [95% CI: -.956 to -.461], p < .001, I2 = 80.6%) and evidence of a dose dependent response. Larger reductions to portion size and reducing portion sizes of multiple meals per day both resulted in larger decreases in daily energy intake. There was also evidence of a curvilinear relationship between portion size and daily energy intake, whereby reductions to daily energy intake were markedly smaller when reducing portion size from very large portions. In a subset of studies that measured body weight (n=5), being served smaller portions was associated with less weight gain than larger portions (SMD = .536 ([95% CI: .268 to .803], p < .001, I2 = 47.0%). Conclusions. Smaller food portion sizes substantially decrease daily energy intake and there is evidence that over time this results in lower body weight. Reducing food portion sizes may be an effective population level strategy to reduce obesity.


Author(s):  
Meabh Fionnuala Adams ◽  
BrianÓg Murphy ◽  
Mary Flynn ◽  
Oonagh Lyons ◽  
Clare O Donovan ◽  
...  

Biology Open ◽  
2021 ◽  
Author(s):  
Marharyta Moiseienko ◽  
Anton Vlaschenko

Insectivorous bats provide important ecosystem services, especially by suppressing and controlling the insects’ biomass. To empirically quantify the amount of insects consumed by European vespertilionid bats per night, we estimated their ratio of dry mass of feces to mass of consumed insects. This study combines the results of feeding in captivity and the data obtained in field surveys; dry mass of feces was measured in both cases. In captivity, we analyzed the effect of species, age and sex of bats, species of insects consumed and the mass of food portion on the dry mass of feces. Using coefficients of the regression model, we estimated the amount of insects consumed by free-ranging bats based on dry mass of their feces. According to our estimates, on average, one individual of one of the largest European bat species, N. noctula, consumes 2.2 g (ranging from 0.5 to 8.5 g) of insects per one feeding night, while the smallest European bats of genus Pipistrellus consume 0.4 g (ranging from 0.1 to 1.3 g), further confirming the importance of insectivorous bats for ecosystem services. This publication offers the novel method for the estimation of insects’ biomass consumed by bats.


2021 ◽  
Author(s):  
Yusman Syaukat ◽  
A Faroby Falatehan ◽  
Nizar Nasrullah ◽  
Hastuti Hastuti ◽  
Fitria Dewi Raswatie ◽  
...  

Food loss occurs in urban area restaurants, including in Bogor. The consumption activity in restaurants sometimes produces food waste, including of rice, vegetables or side dishes. The research objectives were (1) To identify the restaurant food-wasting process in Bogor, and (2) To estimate the amount and economic value of restaurant food waste in Bogor. The Indonesian National Standard (SNI) 19-3964-1994 about Sampling and Measurement Method and Composition of Urban Waste was used for sampling. Food waste in restaurants occurs from sellers and customers. The unsold food waste of restaurants in Bogor was predominately rice. The occurrence of rice waste was due to large cooking portions and the drying of rice during cooking, making it unable to consume. The food waste produced from unconsumed food by customers included rice and side dishes, such as meat, chicken and fish. Some reasons for food waste occurrence from visitor consumption were unpreferred food taste, large food portion and low appetite. The annual rice waste from unsold and unconsumed food in restaurants in Bogor was 29,742.84 kg or Rp 356,914,080. The annual amounts of meat, chicken, and fish waste are 14,780kg, 28,500kg and 8,460 kg, respectively. The economic value of meat, chicken and fish waste is Rp 1,655,640,000, Rp 712,480,000 and Rp 253,711,500, respectively. Keywords: consumption, the Indonesian National Standard (SNI) 19-3964- 1994, urban waste, consumption chain, weight conversion factor


The author, who has type 2 diabetes (T2D) for 26 years, conducted his diabetes research over the past 11 years. Since 2020, he has published 400+ medical research papers in various medical journals. Recently, he received invitations to submit his medical research notes to a gynecology journal but he hesitated because he was not a gynecologist. However, the editor convinced him that his research results may be beneficial to some patients with gestational diabetes mellitus (GDM) since diabetes conditions are quite similar, if not the same. Therefore, he started to review some medical papers online on the subject of gestational diabetes. Finally, he uncovered that his research results could indeed benefit some GDM patients to some degree and decided to write this summary note. Although his research specialties are in the areas of endocrinology, diabetes, and lifestyle, after 11 years of dedicated medical research with additional self-studying on GDM, he discovered that approximately 90% of his diabetes research findings are applicable to this special group. In summary, three areas with special emphasis are highlighted for GDM patients. The first and major area is food nutrition in a lifestyle management program. Due to the concerns of hyperglycemia, the author eats high-quality protein, a lot of fish and vegetables, particularly green leafy vegetables, portioncontrolled shellfish and fruits, along with avoidance of red meat and sweetened food. However, for a GDM patient, he highly recommends them to follow a “nutritional balanced” meal plan, avoiding high-carbs, sugar-based, and processed food in general to prevent unhealthy chemical additives. The fetus in utero needs good nutrition supplied by its mother; therefore, the mother must eat nutritional balanced meals that meet nutritional requirements and glucose concerns. The second area is specific weight-gain management. The author focuses on the food portion percentage with a strong willpower to resist his food cravings plus persistence each day, so that he can achieve his weight reduction target. However, for a GDM patient, she must constantly monitor the amount of weight gained according to the Mayo Clinic’s “weight-gain guidelines”. Maintenance in this area is important for the benefit of the baby’s development and mother’s health during pregnancy. However, both of his food portion percentage and persistent weight control are good examples to follow and useful for a GDM patient. The third area is medication treatment for gestational diabetes. Although the author ceased taking medications in controlling his diabetes symptoms, he decided to implement a rather stringent lifestyle management program in order to control or even reverse his diabetes conditions at the root-cause level. Nevertheless, it is a difficult route that takes a longer time span to be able to see significant improvements. Since the pregnancy period is relatively shorter, less than 10 months, a gestational diabetes patient must follow her physician’s advice to pursue all the necessary medication treatments or insulin injections. The information in particular the high correlation coefficients between any two variables, from Figures 2 through 5, provide useful knowledge for a GDM patient to learn in order to control her glucose levels during pregnancy. The most important goal is the safe delivery of a healthy new born


Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 175
Author(s):  
Dang Khanh Ngan Ho ◽  
Wan-Chun Chiu ◽  
Yu-Chieh Lee ◽  
Hsiu-Yueh Su ◽  
Chun-Chao Chang ◽  
...  

The use of image-based dietary assessments (IBDAs) has rapidly increased; however, there is no formalized training program to enhance the digital viewing skills of dieticians. An IBDA was integrated into a nutritional practicum course in the School of Nutrition and Health Sciences, Taipei Medical University Taiwan. An online IBDA platform was created as an off-campus remedial teaching tool to reinforce the conceptualization of food portion sizes. Dietetic students’ receptiveness and response to the IBDA, and their performance in food identification and quantification, were compared between the IBDA and real food visual estimations (RFVEs). No differences were found between the IBDA and RFVE in terms of food identification (67% vs. 71%) or quantification (±10% of estimated calories: 23% vs. 24%). A Spearman correlation analysis showed a moderate to high correlation for calorie estimates between the IBDA and RFVE (r ≥ 0.33~0.75, all p < 0.0001). Repeated IBDA training significantly improved students’ image-viewing skills [food identification: first semester: 67%; pretest: 77%; second semester: 84%) and quantification [±10%: first semester: 23%; pretest: 28%; second semester: 32%; and ±20%: first semester: 38%; pretest: 48%; second semester: 59%] and reduced absolute estimated errors from 27% (first semester) to 16% (second semester). Training also greatly improved the identification of omitted foods (e.g., condiments, sugar, cooking oil, and batter coatings) and the accuracy of food portion size estimates. The integration of an IBDA into dietetic courses has the potential to help students develop knowledge and skills related to “e-dietetics”.


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