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  1. Maria Grazia

    CR for women

    Hi ? I'm new here. I'm a 20 years old girl from Italy (forgive my eventual english mistakes, please), psychology undergraduate. I'm interested in CR for its immediate health benefits and the promise of aging well more than for increasing lifespan (and since my budget is not infinite I like the fact that buying less food would allow me to invest on quality). I would like to understand if and how it could be compatible with an optimal reproductive health, since I'm young and the goal here is to feel better, not worse, and since from what I understand women's hormones balance is more vulnerable to caloric restriction and fat loss. I'm on the high end of the healthy range of BMI (24.1) but I have a high waist to hip ratio for my age (0.78) that I would like to reduce so I'm pretty sure I could benefit from a patient, balanced, weight loss diet, but the question is: as a young woman how far should I go for optimal health (immediate physical health + hormonal balance, meaning reproductive and mental health + aging well)? Should I do a common diet limited in time and then raise my calories for hormonal balance hoping to mantain eating clean as much as my budget allows or prefer a slight chronic caloric restriction that would allow me to buy and eat only high quality food (with the exception of social occasions)?
  2. Soy is widely known in health circles as pro-estrogenic and feminizing and men are recommended to avoid it. If that’s actually the case, can anyone explain why serum estrogen levels actually decrease in soy-supplemented groups in studies in both men and women? And why is there an inverse relationship between hormone dependent cancers such as breast and prostate cancer (I suppose all cancers are hormone dependent) and soy consumption? Here are just some of the studies I’m talking about: https://www.ncbi.nlm.nih.gov/pubmed/8770469 - 36-oz of daily soymilk consumption for a month significantly decreased serum 17 beta-estradiol levels in premenopausal women. https://www.ncbi.nlm.nih.gov/pubmed/9839524 - Estrone and estradiol levels were decreased by 23% and 27% at the end of the study in the soy milk supplemented group in Japanese women. The change in estrone and estradiol levels was minor in the control, non-soy group. https://www.ncbi.nlm.nih.gov/pubmed/11303585 - Serum estrone concentrations decreased in the soy-supplemented group in Japanese men. There was no change in testosterone levels in both the soy group and the control group. Is it that the estrogen circulation in blood decreases from soy but estrogen level inside the cell increases? Is that why soy is so widely considered as ‘estrogenic’?