Osteoporosis ranks sixth amongst chronic diseases of women in the United States, with an overall prevalence of 18%, and a much higher rate involving the femur, neck or lumbar spine amongst women (16%) than men (4%), over the age of 50 (Gronowski and Schindler, Table IV).[6][7][128] Osteoporosis is a risk factor for bone fracture and about 20% of senior citizens who sustain a hip fracture die within a year.[6] [129] The gender gap is largely the result of the reduction of estrogen levels in women following the menopause. Hormone Replacement Therapy (HRT) has been shown to reduce this risk by 25–30%,[130] and was a common reason for prescribing it during the 1980s and 1990s. However the Women's Health Initiative (WHI) study that demonstrated that the risks of HRT outweighed the benefits[131] has since led to a decline in HRT usage.
Research is a priority in terms of improving women's health. Research needs include diseases unique to women, more serious in women and those that differ in risk factors between women and men. The balance of gender in research studies needs to be balanced appropriately to allow analysis that will detect interactions between gender and other factors.[6] Gronowski and Schindler suggest that scientific journals make documentation of gender a requirement when reporting the results of animal studies, and that funding agencies require justification from investigators for any gender inequity in their grant proposals, giving preference to those that are inclusive. They also suggest it is the role of health organisations to encourage women to enroll in clinical research. However, there has been progress in terms of large scale studies such as the WHI, and in 2006 the Society for Women's Health Research founded the Organization for the Study of Sex Differences (OSSD) and the journal Biology of Sex Differences to further the study of sex differences.[6]
Vitamin D: Over the past decade, dozens of studies have revealed many important roles for vitamin D, the nutrient that skin cells produce when they are exposed to sunlight. The recommended daily intake of Vitamin D is 600 IU per day, although recommended levels are under review. If you avoid the sun or live in the northern half of the U.S., ask your doctor whether your vitamin D level should be tested.
Amongst non-governmental organizations (NGOs) working to end child marriage are Girls not Brides,[106] Young Women's Christian Association (YWCA), the International Center for Research on Women (ICRW)[107] and Human Rights Watch (HRW).[108] Although not explicitly included in the original Millennium Development Goals, considerable pressure was applied to include ending child marriage in the successor Sustainable Development Goals adopted in September 2015,[105] where ending this practice by 2030 is a target of SDG 5 Gender Equality (see above).[109] While some progress is being made in reducing child marriage, particularly for girls under fifteen, the prospects are daunting.[110] The indicator for this will be the percentage of women aged 20–24 who were married or in a union before the age of eighteen. Efforts to end child marriage include legislation and ensuring enforcement together with empowering women and girls.[92][93][95][94] To raise awareness, the inaugural UN International Day of the Girl Child[a] in 2012 was dedicated to ending child marriage.[112]

Many nutrition-sensitive approaches were delivered in broader community-based settings and more equitably reached women across the life course. Non-facilities-based settings more equitably delivered nutrition interventions to women who were not pregnant or lactating, and who were less engaged with health clinics and schools. For instance, food fortification, which was often delivered through markets, home visits, and community centers, seemed to be more effective at reaching women of reproductive age than health center–based delivery platforms. Community-level interventions are often reported as more equitable than platforms that require access to “fixed and well-equipped health facilities” (212). This aligns with our findings, where we found that community-based platforms such as home visits, community centers, homes of community leaders, work, mass media, mobile phones, and commercial settings were effective at reaching women across the life course (Table 1). Other delivery platforms such as marketplaces, water points, tailoring shops, and agricultural points for seeds or inputs were also effective. These locations need to be context-specific in order to capture where women spend their time. For instance, in countries where many adolescent girls do not attend school, school-based delivery platforms might be less effective. Delivery platforms also need to be sensitive to the sociodemographic differences that influence where women spend their time, such as differences for women in rural and urban areas, and of different socioeconomic statuses. Additional research needs to identify and report where women and adolescent girls are, and how best to reach them.
The effect of education programs on nutrition outcomes is difficult to assess because programs often have poor baseline data or nutrition outcomes are not evaluated (174, 182). Studies that used longitudinal analyses and “natural” experiments (e.g., before and after a national education policy) found that education was associated with reduced fertility (183, 184), and delayed early marriages and pregnancies (184–187). The impact was more significant for higher levels of education (185). However, 1 study in Malawi identified negative associations between education and timing of first birth, although these findings were largely not statistically significant (188). Secondary education for adolescents and women of reproductive age also showed no impact on women's empowerment (184), although it did show an impact on improved literacy and leadership (174). Educational interventions that provided conditional cash transfers (CCTs) and school feeding, as well as other forms of social protection to families of enrolled girls, were associated with greater school enrollment and attendance (189–191), improved test scores (189, 190), reduced gender gaps (192), and reduced hunger (190, 191).
  Community centers  ↑/NC knowledge about hygiene and sanitation, ↑ water quality, ↓ diarrheal morbidity  ↑/NC knowledge about hygiene and sanitation, ↑ water quality, ↓ diarrheal morbidity  ↑/NC knowledge about hygiene and sanitation, ↑/NC hand-washing, ↑ water quality, NC waste disposal, ↓ diarrheal morbidity  ↑/NC knowledge about hygiene and sanitation, ↑ water quality, ↓ diarrheal morbidity 

What you eat is even more important as you enter your 40s. Women need protein (meat, fish, dairy, beans, and nuts), carbohydrates (whole grains), fats (healthy oils), vitamins, minerals, and water. These foods have been linked to some disease prevention, such as osteoporosis, high blood pressure, heart disease, diabetes, and certain cancers. The American Academy of Family Physicians supports the development of healthy food supply chains in supplemental nutrition programs so as to broaden the availability of healthy food.