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Time-Restricted Eating: Effect on Reproductive Hormones in Premenopausal and Postmenopausal Women

Obesity (Silver Spring, Md.), 2022-11, Vol.30, p.284-285 [Peer Reviewed Journal]

Copyright Blackwell Publishing Ltd. Nov 2022 ;ISSN: 1930-7381 ;EISSN: 1930-739X

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  • Title:
    Time-Restricted Eating: Effect on Reproductive Hormones in Premenopausal and Postmenopausal Women
  • Author: Cienfuegos, Sofia
  • Subjects: Fasting ; Womens health
  • Is Part Of: Obesity (Silver Spring, Md.), 2022-11, Vol.30, p.284-285
  • Description: Background: Time restricted eating (TRE) involves eating all food within a specified window (4 to 10 h) and water fasting for the rest of the day. TRE produces several metabolic health benefits, but concerns have been raised regarding the impact of this diet on reproductive hormone levels in women. Objective: Accordingly, we conducted this study to examine how TRE impacts estradiol, estrone, progesterone, DHEA, androstenedione, testosterone, and SHBG concentrations in both premenopausal and postmenopausal women. Methods: This is a secondary analysis of an 8-week TRE study (4-6 h eating window, 18-20 h fasting window daily) conducted in adults with obesity. Male participants and perimenopausal women were excluded. Female subjects were classified into two groups based on menstrual status: premenopausal (n = 12), or postmenopausal (n = 11). Results: After 8 weeks, body weight decreased in premenopausal women (-3 ± 1%) and postmenopausal women (-3 ± 1%) (main effect of time, p < 0.001), with no difference between groups (no group ' time interaction). Levels of testosterone, androstenedione, SHBG did not change in either group of women (no group ' time interaction). DHEA concentrations decreased (p < 0.05) in premenopausal (-14 ± 9%) and postmenopausal women (-13 ± 10%; main effect of time, p = 0.03). Estradiol, estrone, and progesterone were only measured in postmenopausal women, and remained unchanged by week 8. Conclusions: These findings suggest that short-term TRE has little effect on reproductive hormone levels in premenopausal and postmenopausal with obesity. However, these findings still require confirmation by well-powered RCT that specifically examines the effect of fasting on the reproductive health of women of various ages.
  • Publisher: Silver Spring: Blackwell Publishing Ltd
  • Language: English
  • Identifier: ISSN: 1930-7381
    EISSN: 1930-739X
  • Source: ProQuest Central
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