Of course I'd like to think that there are benefits in having normal FSH, particularly now that treatment with GnRH has given me this. The study's authors acknowledge that "we cannot draw a causal relationship between FSH and NAFLD because the nature of this study is cross-sectional." In the detailed discussion they say:
Follicle-stimulating hormone may be associated with NAFLD risk partly through its relationship to abdominal obesity. In a study mainly recruiting Caucasian and African-American women, obesity significantly attenuated the rise of FSH after the final menstrual period. The same trend was observed in our Asian population. Another study also found that weight loss led to increases in FSH among overweight and obese postmenopausal women. Some may think that E2 is involved in this association. In postmenopausal women, E2 secretion shifts from the ovary to a compensatory source in fat. It is reasonable to deduce that FSH decreases because more E2 is secreted in obese women and E2 is positively associated with obesity. However, in postmenopausal women after adjustment for E2, changes in FSH were still associated with changes in weight and NAFLD, which suggests that adiposity-related factors other than E2 may be associated with FSH. Moreover, it is controversial whether E2 is negatively or positively associated with NAFLD in postmenopausal women.