Comparative Study of Serum Leptin and Insulin Resistance Levels Between Korean Postmenopausal Vegetarian and Non-vegetarian Women

Kim, Mi‐Hyun; Bae, Yun Jung

doi:10.7762/cnr.2015.4.3.175

Cited by 21 publications

(21 citation statements)

References 39 publications

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“…The mean plasma leptin levels for omnivores, vegetarians and vegans were 7.45 ng/ml, 3.87 ng/ml, and 2.89 ng/ml, respectively. Corresponding conclusions can be made also from the study performed by Kim and Bae (Kim & Bae, 2015). The authors examined the plasma concentrations of leptin between semi-vegetarians and omnivores.…”

Section: Discussionmentioning

confidence: 79%

Association between different types of plant-based diets and leptin levels in healthy volunteers

et al. 2019

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Leptin is an important factor regulating appetite and energety metabolism; disturbances in its signaling are related to adiposity and contribute to the excessive body fat. About a third of the human population is overweight or suffers from obesity, as well as from associated medical conditions. It is well established that vegetarian, especially vegan, diet is very effective in lowering BMI and body fat, thus, plant-based diets are associated with a lower risk of obesity. The aim of this study was to evaluate the plasma levels of leptin in lacto-ovo-vegetarian and vegan volunteers with normal BMI. The intake of energy and selected diet components such as polyunsaturated fatty acids (PUFA) and carbohydrates was also investigated. The study involved healthy women – 14 omnivores, 17 lacto-ovo-vegetarians, and 11 vegans. All women had a normal BMI (18.5-24.99). The plasma leptin levels were examined with immunoenzymatic test (ELISA). All participants were interviewed to estimate their nutrient intake by performing a 24-hour dietary recall. Both lacto-ovo-vegetarians and vegans had lower plasma leptin concentrations than their meat-consuming counterparts. Every analyzed diet group had a different body fat content, with the highest level in omnivores and the lowest in vegans. All participants had similar calorie, total fat, and total carbohydrates intake. Total PUFA and specifically omega-3 fatty acids consumption was lower in omnivores when compared to both types of plant diet; the same was found for fiber intake. Our results suggest that adopting a plant-based diet may be beneficial for energetic metabolism, as it significantly lowers the body fat storage and circulating leptin levels.

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Section: Discussionmentioning

confidence: 79%

Association between different types of plant-based diets and leptin levels in healthy volunteers

et al. 2019

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“…Definitions tended to vary between studies. For example, some authors specified that participants on an SVD restricted their intake of red meat (12, 13), while others restricted fish (14). In studies using data from the Adventist Health Study-2, SVDs were defined as those consuming dairy products and/or eggs and meat (red meat and poultry ≥1 time/month and <1 time/week) (15–20).…”

Section: Resultsmentioning

confidence: 99%

“…Vegan diets were associated with significantly higher levels of weight loss by the end of the study (22). A Korean study reported that postmenopausal women maintaining an SVD over 20 years had a significantly lower body weight, body mass index (BMI), and percentage of body fat compared with non-vegetarians (NVs) (12). …”

Section: Healthmentioning

confidence: 99%

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Flexitarian Diets and Health: A Review of the Evidence-Based Literature

2017

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A flexitarian or semi-vegetarian diet (SVD) is one that is primarily vegetarian with the occasional inclusion of meat or fish. Of late, there appears to be an increasing movement toward this practice. There has not been a recent update on these diets from a health perspective. Using the National Centre for Biotechnology Information PubMed database, a search was made for all studies published between 2000 and 2016 that met defined inclusion criteria. A total of 25 studies were located with 12 focusing on body weight and diet quality. There was emerging evidence suggestive of benefits for body weight, improved markers of metabolic health, blood pressure, and reduced risk of type 2 diabetes. SVD may also have a role to play in the treatment of inflammatory bowel diseases, such as Crohn’s disease. Given that there is a higher tendency for females to be flexitarian yet males are more likely to overconsume meat, there is a clear need to communicate the potential health benefits of these diets to males.

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“…Adherence to a vegetarian diet has been associated with a reduced risk of developing coronary heart disease [1], breast cancer [2], colorectal cancers [3], prostate cancer [4], type 2 diabetes [5], insulin resistance [6], hypertension [7], cataracts [8] and dementia [9]. Vegetarians also typically have a lower body mass index (BMI) [10] and an improved lipid profile [11].…”

Section: Introductionmentioning

confidence: 99%

Cardiorespiratory Fitness and Peak Torque Differences between Vegetarian and Omnivore Endurance Athletes: A Cross-Sectional Study

2016

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In spite of well-documented health benefits of vegetarian diets, less is known regarding the effects of these diets on athletic performance. In this cross-sectional study, we compared elite vegetarian and omnivore adult endurance athletes for maximal oxygen uptake (VO2 max) and strength. Twenty-seven vegetarian (VEG) and 43 omnivore (OMN) athletes were evaluated using VO2 max testing on the treadmill, and strength assessment using a dynamometer to determine peak torque for leg extensions. Dietary data were assessed using detailed seven-day food logs. Although total protein intake was lower among vegetarians in comparison to omnivores, protein intake as a function of body mass did not differ by group (1.2 ± 0.3 and 1.4 ± 0.5 g/kg body mass for VEG and OMN respectively, p = 0.220). VO2 max differed for females by diet group (53.0 ± 6.9 and 47.1 ± 8.6 mL/kg/min for VEG and OMN respectively, p < 0.05) but not for males (62.6 ± 15.4 and 55.7 ± 8.4 mL/kg/min respectively). Peak torque did not differ significantly between diet groups. Results from this study indicate that vegetarian endurance athletes’ cardiorespiratory fitness was greater than that for their omnivorous counterparts, but that peak torque did not differ between diet groups. These data suggest that vegetarian diets do not compromise performance outcomes and may facilitate aerobic capacity in athletes.

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Comparative Study of Serum Leptin and Insulin Resistance Levels Between Korean Postmenopausal Vegetarian and Non-vegetarian Women

Cited by 21 publications

References 39 publications

Association between different types of plant-based diets and leptin levels in healthy volunteers

Association between different types of plant-based diets and leptin levels in healthy volunteers

Flexitarian Diets and Health: A Review of the Evidence-Based Literature

Cardiorespiratory Fitness and Peak Torque Differences between Vegetarian and Omnivore Endurance Athletes: A Cross-Sectional Study

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