Abstract
Purpose
To evaluate whether the association between fiber intake and LH levels is driven by the association between fiber and estradiol, or whether there is an independent association.
Methods
A prospective cohort of 259 premenopausal women were followed for up to 2 menstrual cycles. Estrogen and LH were measured ≤8 times per cycle at visits scheduled using fertility monitors. Diet was assessed ≤4 times per cycle by 24-h recall. Linear mixed models on the log scale of hormones were utilized to evaluate the total effects of fiber intake. Inverse probability weights were utilized to estimate the independent effect of fiber on LH levels.
Results
In unweighted analyses, we observed a significant, inverse association between fiber intake (in 5 g/day increments) and log LH levels (β, −0.051, 95% confidence interval (CI), −0.100, −0.002). No association was observed in the weighted analyses, after estradiol levels were taken into account (β, −0.016, 95% CI, −0.060, 0.027).
Conclusions
The decreased levels of LH associated with high fiber intake were attenuated after taking estradiol levels into account, suggesting that the association between fiber and LH is most likely a consequence of fiber’s impact on estradiol and not due to an independent mechanism.
References
Pedersen AB, Bartholomew MJ, Dolence LA, Aljadir LP, Netteburg KL, Lloyd T (1991) Menstrual differences due to vegetarian and nonvegetarian diets. Am J Clin Nutr 53:879–885
Hill P, Garbaczewski L, Haley N, Wynder EL (1984) Diet and follicular development. Am J Clin Nutr 39:771–777
Bagga D, Ashley JM, Geffrey SP, Wang HJ, Barnard RJ, Korenman S et al (1995) Effects of a very low fat, high fiber diet on serum hormones and menstrual function. Implications for breast cancer prevention. Cancer 76:2491–2496
Gaskins AJ, Mumford SL, Zhang C, Wactawski-Wende J, Hovey KM, Whitcomb BW et al (2009) Effect of daily fiber intake on reproductive function: the BioCycle study. Am J Clin Nutr 90:1061–1069
Chearskul S, Supingklud N, Nitithamyong A, Sirichakwal P (2006) Assessment of hormonal and metabolic effects of dietary fiber in young Thai women. J Med Assoc Thail 89:997–1003
Murakami K, Sasaki S, Takahashi Y, Uenishi K, Yamasaki M, Hayabuchi H et al (2007) Nutrient and food intake in relation to serum leptin concentration among young Japanese women. Nutrition 23:461–468
Nagatani S, Guthikonda P, Thompson RC, Tsukamura H, Maeda KI, Foster DL (1998) Evidence for GnRH regulation by leptin: leptin administration prevents reduced pulsatile LH secretion during fasting. Neuroendocrinology 67:370–376
Whitten CG, Shultz TD (1988) Binding of steroid-hormones invitro by water-insoluble dietary fiber. Nutr Res 8:1223–1235
Wactawski-Wende J, Schisterman EF, Hovey KM, Howards PP, Browne RW, Hediger M et al (2009) BioCycle study: design of the longitudinal study of the oxidative stress and hormone variation during the menstrual cycle. Paediatr Perinat Epidemiol 23:171–184
Howards PP, Schisterman EF, Wactawski-Wende J, Reschke JE, Frazer AA, Hovey KM (2009) Timing clinic visits to phases of the menstrual cycle by using fertility monitor: the Biocycle study. Am J Epidemiol 169:105–112
Cole SR, Hernan MA (2008) Constructing inverse probability weights for marginal structural models. Am J Epidemiol 168:656–664
Loucks AB, Heath EM (1994) Dietary restriction reduces luteinizing hormone (LH) pulse frequency during waking hours and increases LH pulse amplitude during sleep in young menstruating women. J Clin Endocrinol Metab 78:910–915
Acknowledgments
Funding: The BioCycle study and their researchers were supported by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD). Contributors: The authors thank all the investigators and staff at the University at Buffalo and NICHD for their respective roles in the study, specifically Cuilin Zhang, Kathleen M. Hovey, Brian W. Whitcomb, Penelope P. Howards, Neil J. Perkins, and Edwina Yeung.
Conflict of interest
The authors declare that they have no conflict of interest.
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Gaskins, A.J., Mumford, S.L., Wactawski-Wende, J. et al. Effect of daily fiber intake on luteinizing hormone levels in reproductive-aged women. Eur J Nutr 51, 249–253 (2012). https://doi.org/10.1007/s00394-011-0207-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00394-011-0207-2