Alanine Aminotransferase and Body Composition in Obese Men and Women

There is a known relationship between serum alanine aminotransferase (ALT) and obesity in humans, but the mechanism(s) are not clarified. This study investigated the associations between serum ALT and body composition in an overweight and obese population. The results are based on data from a previous randomized controlled trial treating obesity with vitamin D3. A sample of 448 overweight and obese individuals underwent dual-energy X-ray absorptiometry (DEXA) and measured serum ALT along with supplementary blood samples at study baseline. Body fat mass and lean mass indexes were calculated by dividing total body fat/lean weight (kg) by body height squared (kg/m2). ALT correlated with body mass index (BMI) in men but not women (r=0.33, P<0.0001 vs. r=0.06, P=0.29). In men, serum ALT correlated positively with fat mass index (r=0.23, P=0.004) and lean mass index (r=0.32, P<0.0001). In women, ALT correlated with lean mass index (r=0.13, P=0.031) but not fat mass index (r=0.003, P=0.96). In a multivariate model adjusted for age and fat mass index, a 1-unit increase in lean mass index associated with a 0.37 U/L higher ALT in the male subgroup (95% CI 0.024 to 0.040, P<0.0001). In conclusion, serum ALT was associated with body fat mass index in men and with lean mass index in men and women in an overweight and obese population. The findings also demonstrate a gender difference in the role of fat.

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Differential impact of adiposity on risk of atrial fibrillation in men and women in UK Biobank

European Heart Journal ◽

10.1093/ehjci/ehaa946.0502 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

C.J.F Camm ◽

B Lacey ◽

B Casadei ◽

J.C Hopewell

Keyword(s):

Body Fat ◽

Fat Mass ◽

Lean Mass ◽

Fat Distribution ◽

Body Fat Mass ◽

Central Adiposity ◽

Uk Biobank ◽

Men And Women ◽

Independent Effects ◽

General Adiposity

Abstract Background Atrial fibrillation (AF) and obesity are common conditions with important health implications. Greater adiposity has been associated with higher risk of AF. However, body fat distribution differs between sexes, and the independent effects of different adiposity measures on AF risk remain unclear. Purpose To establish the independent effects of general and central adiposity on risk of incident AF in men and women. Methods UK Biobank is a prospective study involving 502,536 adults (aged 40–69). Participants underwent an extensive baseline interview and physical assessment (including bio-impedance measurements). Incident AF cases were identified by linkage to national hospital statistics and death registry data. Cox regression models adjusted for age, sex, ethnicity, deprivation, smoking and alcohol, were used to estimate effects of general adiposity (body mass index [BMI] and body fat mass), central adiposity (waist circumference [WC]), and lean mass, on risk of incident AF (per sex-specific standard deviation [SD]). Results Among 477,918 participants (mean age 56.4 years, SD 8.1; 45% men) with no history of AF, mean BMI was similar in women (27.0kg/m2, SD 5.0) and men (27.8kg/m2, SD 4.1). Conversely, mean WC was lower in women (84.5cm, SD 12.3) than men (96.8cm, SD 11.0), while mean body fat mass was higher in women (26.9kg, SD 9.8) than men (22.2kg, SD 8.0). A total of 14,362 incident AF events were identified (5,254 in women, 9,108 in men) over 8.1 years median follow-up. AF was positively associated with adiposity. A 1-SD higher BMI, equivalent to 4.6kg/m2, and a 1-SD higher WC, equivalent to 11.7cm, were each associated with >30% higher risks of AF (hazard ratio [HR] BMI 1.32 [95% CI 1.30–1.34]; WC 1.37 [1.35–1.39]), and showed no sex differences. Lean mass was also strongly associated with AF (1.41 [1.39–1.43]), and similar between sexes. In contrast, a 1-SD higher body fat mass, equivalent to 9.0kg, was associated with a 34% higher risk of AF overall (1.34 [1.32–1.36]), but had a stronger effect in women (1.41 [1.38–1.45]) than men (1.30 [1.28–1.33]), p-interaction 1x10–6; albeit effects were comparable per kg). After adjustment for body fat mass and lean mass, WC remained positively associated with AF overall (1.19 [1.15–1.23]) and in both sexes (1.14 [1.09–1.20] in women, 1.21 [1.17–1.26] in men). However, following adjustment for lean mass and WC, body fat mass remained positively associated with AF (1.09 [1.06–1.12]) overall, and in women (1.19 [1.14–1.26]) but was almost completely attenuated in men (1.04 [1.01–1.08]), p-interaction 0.004 (Figure). Associations were not materially changed by further adjustment for height, or by excluding those with prior vascular disease. Conclusions Central adiposity is strongly and independently associated with AF in both sexes. Conversely, general adiposity is independently associated with risk of AF in women but not men. Suggesting the impact fat distribution on AF risk differs by sex. Fat mass, waist circumference & AF risk Funding Acknowledgement Type of funding source: Foundation. Main funding source(s): British Heart Foundation

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Body Composition in Elite Soccer Players from Youth to Senior Squad

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18094982 ◽

2021 ◽

Vol 18 (9) ◽

pp. 4982

Author(s):

Marijan Spehnjak ◽

Marko Gušić ◽

Slavko Molnar ◽

Mario Baić ◽

Slobodan Andrašić ◽

...

Keyword(s):

Body Composition ◽

Body Fat ◽

Fat Mass ◽

Body Height ◽

Age Groups ◽

Fat Free Mass ◽

Soccer Players ◽

Body Fat Mass ◽

Cross Sectional ◽

Percentage Of Body Fat

There is a strong relationship between body composition and performance in male soccer players. This study aimed to display an optimal body height and weight, and body composition profile of male soccer players for four competitive age groups. This cross-sectional study included four groups: U-15 (n = 152), U-17 (n = 154), U-19 (n = 61), and seniors (n = 27). Body height and weight were measured under standard conditions, and the bioelectrical impedance analyzer (BIA) analyzed body composition. On average, soccer players in the U-15 group had significantly lower body height, weight, body mass index, skeletal muscle mass, fat-free mass, total body water and basal metabolic rate than U-17, U-19 and seniors, but a higher percentage of body fat than U-17 and U-19, p < 0.05. In addition, the results show significant non-linear increases in body height, weight and body composition as the age of soccer players increases, with the exception of the percentage of body fat mass, which tends to significantly decrease with age. The main findings of this study are that body fat mass remains stable and similar across all age groups, including in the senior squad.

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Longitudinal changes in body composition and waist circumference by self-reported levels of physical activity in leisure among adolescents: the Tromsø study, Fit Futures

BMC Sports Science Medicine and Rehabilitation ◽

10.1186/s13102-019-0150-8 ◽

2019 ◽

Vol 11 (1) ◽

Cited By ~ 1

Author(s):

Nils Abel Aars ◽

Bjarne K. Jacobsen ◽

Bente Morseth ◽

Nina Emaus ◽

Sameline Grimsgaard

Keyword(s):

Physical Activity ◽

Body Composition ◽

Waist Circumference ◽

Fat Mass ◽

Lean Mass ◽

Leisure Time ◽

Leisure Time Physical Activity ◽

First Year ◽

Fat Mass Index

Abstract Background It is not clear how physical activity affects body composition in adolescents. Physical activity levels are often reduced during this period, and the relative proportion of body fat mass and lean mass undergo natural changes in growing adolescents. We aimed to examine whether self-reported physical activity in leisure time at baseline or change in activity during follow-up affect changes in four measures of body composition; body mass index (kg/m2), waist circumference, fat mass index (fat mass in kg/m2) and lean mass index (lean mass in kg/m2). Methods We used data from the Tromsø Study Fit Futures, which invited all first year students in upper secondary high school in two municipalities in northern Norway in 2010–2011. They were reexamined in 2012–2013. Longitudinal data was available for 292 boys and 354 girls. We used multiple linear regression analyses to assess whether self-reported level of physical activity in leisure time at baseline predicted changes in body composition, and analysis of covariance to assess the effects of change in level of activity during follow-up on change in body composition. All analyses were performed sex-specific, and a p-value of < 0.05 was considered statistically significant. Results There were no associations between self-reported leisure time physical activity in the first year of upper secondary high school and changes in any of the considered measure of body composition after 2 years of follow up, with the exception of waist circumference in boys (p = 0.05). In boys, change in fat mass index differed significantly between groups of activity change (p < 0.01), with boys adopting activity or remaining physically active having less increase in fat mass index than the consistently inactive. In girls, change in lean mass index differed significantly between groups of activity change (p = 0.04), with girls adopting physical activity having the highest increase. Conclusions Self-reported leisure time physical activity does not predict changes in body composition in adolescents after 2 years of follow up. Change in the level of physical activity is associated with change in fat mass index in boys and lean mass index in girls.

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Serum FSH Is Associated with BMD, Bone Marrow Adiposity and Body Composition in the AGES-Reykjavik Study of Older Adults

The Journal of Clinical Endocrinology & Metabolism ◽

10.1210/clinem/dgaa922 ◽

2020 ◽

Author(s):

Annegreet G Veldhuis-Vlug ◽

Gina N Woods ◽

Sigurdur Sigurdsson ◽

Susan K Ewing ◽

Phuong T Le ◽

...

Keyword(s):

Older Adults ◽

Bone Marrow ◽

Body Composition ◽

Body Fat ◽

Fat Mass ◽

Lean Mass ◽

Mineral Density ◽

1H Mrs ◽

Testosterone Levels ◽

Marrow Adiposity

Abstract Context Follicle stimulating hormone (FSH) concentrations increase during the perimenopausal transition and remain high post menopause. Loss of bone mineral density (BMD) and gain of bone marrow adiposity (BMA) and body fat mass also occur during this time. In mice, blocking the action of FSH increases bone mass and decreases fat mass. Objective To investigate the associations between endogenous FSH levels and BMD, BMA and body composition in older adults, independent of estradiol and testosterone levels. Design, setting and participants Older adults from the AGES-Reykjavik Study, an observational cohort study. Main outcome measures Areal BMD, total body fat, and lean mass were measured with DXA. Lumbar vertebral BMA was measured by 1H-MRS. Volumetric BMD and visceral and subcutaneous adipose tissue (VAT, SAT) areas were measured with QCT. The least squares means procedure was used to determine sex-hormone adjusted associations between quartiles of serum FSH and BMD, BMA, and body composition. Results In women (N=238, mean age 81y), those in the highest FSH quartile, compared with the lowest quartile, had lower adjusted mean spine integral BMD (-8.6%), lower spine compressive strength index (-34.8%), higher BMA (+8.4%), lower weight (-8.4%), lower VAT (-17.6%), lower lean mass (-6.1%), and lower fat mass (-11.9%) (all P < 0.05). In men, FSH level was not associated with any outcome. Conclusions Older postmenopausal women with higher FSH levels have higher BMA, but lower BMD and lower fat and lean mass, independent of estradiol and testosterone levels. Longitudinal studies are needed to better understand the underlying mechanisms.

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Aerobic exercise-induced changes in body composition and blood lipids in young women

Medicina ◽

10.3390/medicina46020019 ◽

2010 ◽

Vol 46 (2) ◽

pp. 129 ◽

Cited By ~ 13

Author(s):

Arvydas Stasiulis ◽

Asta Mockienė ◽

Daiva Vizbaraitė ◽

Pranas Mockus

Keyword(s):

Body Mass Index ◽

Body Composition ◽

Body Weight ◽

Body Mass ◽

Body Fat ◽

Fat Mass ◽

Blood Lipids ◽

Density Lipoprotein ◽

Body Fat Mass ◽

Cycling Training

The objective of the study was to assess changes in body composition, blood lipid and lipoprotein concentrations in 18–24-year-old women during the period of two-month aerobic cycling training. Material and methods. Young, healthy, nonsmoking women (n=19) volunteered to participate in this study. They were divided in two groups: experimental (E, n=10) and control (C, n=9). The subjects of group E exercised 3 times a week with intensity of the first ventilatory threshold and duration of 60 min. The group C did not exercise regularly over a two-month period of the experiment. The subjects of group E were tested before and after 2, 4, 6 and 8 weeks of the experiment. The participants of group C were tested twice with an eight-week interval. Results. Body weight, body mass index, body fat mass, and triacylglycerol (TAG) concentration decreased and high-density lipoprotein cholesterol (HDL-ch) concentration increased after the 8-week training program in the experimental group (P<0.05). Blood total cholesterol (Tch) and low-density lipoprotein cholesterol (LDL-ch) concentrations did not change significantly. Body weight and body mass index started to decrease after 2 weeks of the experiment, but significant changes were observed only after 6 and 8 weeks. Body fat mass was significantly decreased after 2 and 8 weeks of aerobic training. A significant increase in HDL-ch concentration was observed after 4, 6, and 8 weeks. A significant decrease in TAG concentration was observed after 2-week training. No significant changes in all the parameters except TAG (it was slightly increased) were seen in the control group. Conclusions. The two-month aerobic cycling training (within VT1, 60-min duration, three times a week) may induce significant changes in the parameters of body composition – body weight, body mass index, body fat mass, and blood lipids – in young women. The following significant changes were observed: TAG level decreased after 2 weeks, body mass and body mass index decreased after 6 weeks, body fat mass decreased and HDL-ch level increased after 8 weeks. Peak oxygen uptake increased after 4 weeks.

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Peculiarities of Physical Fitness and Body Composition of 5—7 Year-Old Children of Several Kaunas Preschools and Interaction between those Indexes

Baltic Journal of Sport and Health Sciences ◽

10.33607/bjshs.v2i73.432 ◽

2018 ◽

Vol 2 (73) ◽

Author(s):

Sandrija Čapkauskienė ◽

Kristina Visagurskienė ◽

Rima Bakienė ◽

Irena Vitkienė ◽

Daiva Vizbaraitė

Keyword(s):

Body Mass Index ◽

Body Composition ◽

Waist Circumference ◽

Physical Fitness ◽

Body Mass ◽

Body Fat ◽

Fat Mass ◽

Body Fat Mass ◽

Percentage Body Fat ◽

General Physical

Childhood obesity is a key public health issue around the globe in developed and developing countries (Dugan, 2008). The recent worldwide increase in the prevalence of childhood obesity may be due in part to a decrease in children’s physical activity levels (Ball et al., 2001). It is necessary to develop early interventions to improve physical fitness in children and to prevent the increase of childhood obesity (Brunet et al., 2006). So, the aim of this study was to evaluate the body composition and physical fitness of children aged 5—7 years and to estimate the interaction between body composition components and physical fitness tests. Participants: 216 children participated in this study: 104 girls, mean age 5.90 ± 0.63 years and 112 boys — mean age 5.98 ± 0.50 years from Kaunas city (Lithuania) preschools. Methods: all the subjects have been measured for their height, body mass, waist circumference (WC) and skinfolds at 2 different places — triceps and subscapular. Body mass index (BMI) and percentage body fat mass (BFM) were evaluated. All the participants did four physical fitness tests including speed shuttle run, 20 meters distance run, standing long jump and throwing 1 kg ball. General physical fitness level was evaluated based on B. Sekita (1988) methods. Results. Results showed that BMI did not significantly differ between boys and girls, and was evaluated as “optimal” for both groups. BFM was significantly higher in girls (p < 0.001), and WC did not differ between genders. But WC had a tendency to increase with age in both boys and girls. Strong relationship was observed between BMI and BFM (r = 0.660, r = 0.660 respectively; p < 0.01), and between BMI and WC (r = 0.703, r = 0.826 respectively; p < 0.01) for both boys and girls. The results of physical tests showed that boys did all the tests better than girls (p < 0.01). When we evaluated the general physical fitness of each child, the results indicated that their physical fitness waslow, evaluated as “good enough” for most boys and girls. General physical fitness of children negatively but slightly correlated with BFM (r = –0.201; p < 0.001), it indicated that higher BFM determined lower evaluation of general physical fitness.Conclusions. Optimal body weight, according to body mass index, percentage body fat mass and waist circumference, was established for the bigger part of children, aged 5—7 years old. This study shows that physical fitness of children was low — evaluated as “good enough” and negatively correlated with body fat mass, showing that high body fat mass negatively impacted physical fitness.Key words: body mass index, percentage body fat mass, waist circumference, physical fitness.

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Peculiarities of metabolic processes and vegetayive status in children with excess fraction of body fat mass

Hygiene and Sanitation ◽

10.47470/0016-9900-2020-99-8-841-847 ◽

2020 ◽

Vol 99 (8) ◽

pp. 841-847

Author(s):

Irina E. Shtina ◽

Svetlana L. Valina ◽

Olga Yu. Ustinova ◽

Vadim B. Alekseev ◽

Darya A. Eisfel’D ◽

...

Keyword(s):

Body Composition ◽

Phase Angle ◽

Body Fat ◽

Fat Mass ◽

Reference Group ◽

Mineral Metabolism ◽

Test Group ◽

Impedance Analysis ◽

Body Fat Mass ◽

Vegetative Regulation

Introduction. Obesity in children makes for the earlier occurrence of cardiovascular, musculoskeletal, and endocrine system diseases.Data and methods. We examined 130 children who were distributed into two groups according to their body fat mass (BFM). Our test group included children with excess BFM fraction and our reference group was made up of children with normal body fat mass. All children were examined with bioimpedance analysis techniques. We comparatively assessed basic impedance analysis indices: fat, protein, carbohydrates, and mineral metabolism; as well as children’s vegetative status.Results. We revealed 20% of children to have overweight as their BMI while impedance analysis indicated that 40% of children had it. Children with BFM excess had a smaller phase angle and less active cellular and musculoskeletal mass combined with lower metabolic rates detected in 50% of them. Changes in body composition in the test group were accompanied by elevated contents of dextrose, sodium, total cholesterol, and hydrocortisone and prevailing influences exerted by sympathetic vegetative regulation against the reference group. Correlation analysis allowed revealing direct correlations between a BFM fraction, cholesterol, and vegetative regulation parameters. We also revealed direct correlations between hydrocortisone, atherogenic lipids and body composition that characterized fat metabolism; reserve correlations between hydrocortisone and a faction of musculoskeletal mass; between lipids in blood serum and fat-free body mass and phase angle; between a fraction of body fat mass and metabolic rate, and a fraction of musculoskeletal mass.Conclusions. Excess BFM fraction is a predictor of metabolic syndrome. Impedance analysis allows creating prevention programs aimed at correcting pathogenetic mechanisms that make for overweight occurrence.

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Body composition analysis in female ballet dancers

Medicinski pregled ◽

10.2298/mpns0312579m ◽

2003 ◽

Vol 56 (11-12) ◽

pp. 579-583 ◽

Cited By ~ 6

Author(s):

Bojan Mihajlovic ◽

Sasa Mijatov ◽

Biljana Srdic ◽

Edita Stokic

Keyword(s):

Body Composition ◽

Body Mass ◽

Body Fat ◽

Fat Mass ◽

Normal Weight ◽

Control Group ◽

Composition Analysis ◽

Study Group ◽

Body Fat Mass ◽

Ballet Dancers

Introduction The aim of this study was to evaluate and compare the nutritional status and body composition in female ballet dancers and a group of non-athletic female controls. Materials and methods The study group consisted of 30 female ballet dancers, aged 17.4?2.01, whereas the control group included 30 non-athletic female examinees, aged 18.00 years on average. Height and weight were measured and body mass index (BMI) was calculated in all subjects. Body composition was estimated using the bioelectrical impedance method. Results Body composition analysis of ballet dancers revealed significantly lower values of body fat mass compared to the control group (18.85?4.50% vs. 23.41?4.34). Most examinees in both groups were of normal weight. 50% of ballet dancers and 23.33% of examinees in the control group were underweight, while overweight subjects were registered only in the control group. Most underweight ballet dancers had lower body fat mass, whereas majority of underweight examinees in the control group presented with normal body fat mass. Normal-weight obesity was established in 40.91% candidates in the control and 6.67% in the study group. Conclusion Ballet dancers had significantly lower values of body mass and BMI, compared to the study group. In order to prevent very serious complications caused by changes in size and proportion of some body compartments, it is necessary to carry out assessment of body composition more often in high-risk groups, such as the study group of ballet dancers.

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Comparison of Dual-Energy X-Ray Absorptiometry (DXA) versus a Multi-frequency Bioelectrical Impedance (InBody 770) Device for Body Composition Assessment after a 4-Week Hypoenergetic Diet

Journal of Functional Morphology and Kinesiology ◽

10.3390/jfmk4020023 ◽

2019 ◽

Vol 4 (2) ◽

pp. 23 ◽

Cited By ~ 4

Author(s):

Antonio ◽

Kenyon ◽

Ellerbroek ◽

Carson ◽

Burgess ◽

...

Keyword(s):

Body Composition ◽

Energy Intake ◽

Body Fat ◽

Fat Mass ◽

Bioelectrical Impedance ◽

Dual Energy ◽

Fat Free Mass ◽

Percent Body Fat ◽

Men And Women ◽

X Ray

The purpose of this investigation was to compare two different methods of assessing body composition (i.e., a multi-frequency bioelectrical impedance analysis (MF-BIA) and dual-energy x-ray absorptiometry (DXA)) over a four-week treatment period in exercise-trained men and women. Subjects were instructed to reduce their energy intake while maintaining the same exercise regimen for a period of four weeks. Pre and post assessments for body composition (i.e., fat-free mass, fat mass, percent body fat) were determined via the MF-BIA and DXA. On average, subjects reduced their energy intake by ~18 percent. The MF-BIA underestimated fat mass and percentage body fat and overestimated fat-free mass in comparison to the DXA. However, when assessing the change in fat mass, fat-free mass or percent body fat, there were no statistically significant differences between the MF-BIA vs. DXA. Overall, the change in percent body fat using the DXA vs. the MF-BIA was −1.3 ± 0.9 and −1.4 ± 1.8, respectively. Our data suggest that when tracking body composition over a period of four weeks, the MF-BIA may be a viable alternative to the DXA in exercise-trained men and women.

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Cocoa-rich chocolate and body composition in postmenopausal women: a randomised clinical trial

British Journal Of Nutrition ◽

10.1017/s0007114520003086 ◽

2020 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

Irene A. Garcia-Yu ◽

Luis Garcia-Ortiz ◽

Manuel A. Gomez-Marcos ◽

Emiliano Rodriguez-Sanchez ◽

Cristina Lugones-Sanchez ◽

...

Keyword(s):

Body Composition ◽

Postmenopausal Women ◽

Body Fat ◽

Fat Mass ◽

The Body ◽

Control Group ◽

Body Fat Percentage ◽

Body Fat Mass ◽

Fat Percentage ◽

Habitual Diet

Abstract During menopause, women undergo a series of physiological changes that include a redistribution of fat tissue. This study was designed to investigate the effect of adding 10 g of cocoa-rich chocolate to the habitual diet of postmenopausal women daily on body composition. We conducted a 6-month, two-arm randomised, controlled trial. Postmenopausal women (57·2 (sd 3·6) years, n 132) were recruited in primary care clinics. Participants in the control group (CG) did not receive any intervention. Those of the intervention group (IG) received 10 g daily of 99 % cocoa chocolate in addition to their habitual diet for 6 months. This quantity comprises 247 kJ (59 kcal) and 65·4 mg of polyphenols. The primary outcomes were the between-group differences in body composition variables, measured by impendancemetry at the end of the study. The main effect of the intervention showed a favourable reduction in the IG with respect to the CG in body fat mass (–0·63 kg (95 % CI –1·15, –0·11), P = 0·019; Cohen’s d = –0·450) and body fat percentage (–0·79 % (95 % CI –1·31, –0·26), P = 0·004; Cohen’s d = –0·539). A non-significant decrease was also observed in BMI (–0·20 kg/m2 (95 % CI –0·44, 0·03), P = 0·092; Cohen’s d = –0·345). Both the body fat mass and the body fat percentage showed a decrease in the IG for the three body segments analysed (trunk, arms and legs). Daily addition of 10 g of cocoa-rich chocolate to the habitual diet of postmenopausal women reduces their body fat mass and body fat percentage without modifying their weight.

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