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Effects of cinnamon supplementation combined with exercise training on anthropometric indices and reproductive hormones in overweight and obese women.

Fatemeh Ahmadi·Mohammad Mehdi Khaleghi·Abdossaleh Zar
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Abstract

BACKGROUND: The prevalence of obesity and increased fat in the chest and abdomen in women and hormonal changes, can affect female fertility. The present study aims to investigate the effect of exercise training combined with cinnamon supplementation on chest and abdominal circumference, as well as sex hormones, in overweight and obese women. METHODS: Twenty-six inactive overweight and obese women were randomly allocated to an exercise (E; n = 13) and exercise plus cinnamon supplementation (E+S; n = 13) group. Both groups completed a 4-week exercise program three times weekly, while the E+S group additionally received cinnamon supplementation three times weekly. Chest and abdominal circumferences and serum concentrations of estradiol, progesterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) were assessed before and after the intervention. RESULTS: Significant pre-to-post reductions in chest and abdominal circumference were observed in both groups (all p ≤ 0.005). Estradiol, progesterone, and FSH concentrations increased, whereas LH concentrations decreased significantly in both groups (all p ≤ 0.005). However, between-group comparisons revealed a significant difference only for chest circumference (p = 0.003), with no significant group differences in abdominal circumference or any reproductive hormone concentration (all p > 0.05). CONCLUSION: Both groups showed favorable changes in anthropometric and reproductive hormone measures following the 4-week study period. However, the significant between-group difference was limited to chest circumference, providing no clear evidence that cinnamon supplementation conferred additional benefits for abdominal circumference or reproductive hormone profiles beyond those observed with exercise. These findings highlight the potential relevance of exercise-based interventions while warranting confirmation in larger, adequately powered trials.

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HumansFemaleCinnamomum zeylanicumOverweightObesityLuteinizing HormoneProgesteroneEstradiolDietary SupplementsFollicle Stimulating HormoneAdultWaist CircumferenceExerciseThoraxYoung AdultAnthropometryabdomen circumferencechest circumferencecinnamonobesitysex hormonesJournal ArticleRandomized Controlled Trial

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Fatemeh Ahmadi, Mohammad Mehdi Khaleghi, Abdossaleh Zar. 2026-09-02. Effects of cinnamon supplementation combined with exercise training on anthropometric indices and reproductive hormones in overweight and obese women.. https://doi.org/10.1080/15502783.2026.2724102

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Journal Article; Randomized Controlled Trial resourceAdult subjectAnthropometry subjectCinnamomum zeylanicum subjectDietary Supplements subjectEstradiol subjectExercise subjectFemale subjectFollicle Stimulating Hormone subjectHumans subjectJournal Article subjectLuteinizing Hormone subjectObesity subjectOverweight subjectRandomized controlled trials studyabdomen circumference subject

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