There's not much doubt about this one: Women need more iron than men, because they lose iron with each menstrual period. After menopause, of course, the gap closes. The RDA of iron for premenopausal women is 18 mg a day, for men 8 mg. Men should avoid excess iron. In the presence of an abnormal gene, it can lead to harmful deposits in various organs (hemochromatosis). Since red meat is the richest dietary source of iron, it's just as well that men don't need to wolf down lots of saturated fat to get a lot of iron.

WASH interventions, such as toilet facilities, access to improved and safe water supply, and hand washing are associated with improved nutrition and health of entire communities (13, 14, 125–128). For women and adolescent girls, WASH interventions were associated with improved menstrual hygiene (126), reduced diarrhea and intestinal worm infections (128–131), and reduced maternal mortality (132). Women and young girls are also more affected by the physical and time burdens of collecting water (126), and harassment and violence associated with inadequate and unsafe toilet facilities (133, 134). Closer water points and sanitation facilities eased these gendered burdens (126, 135). WASH interventions and perceived water availability were associated with less time spent on water-related chores, and improved school attendance, women's empowerment, and self-esteem (126, 135, 136).
Trying to balance the demands of family and work or school—and coping with media pressure to look and eat a certain way—can make it difficult for any woman to maintain a healthy diet. But the right food can not only support your mood, boost your energy, and help you maintain a healthy weight, it can also be a huge support through the different stages in a woman’s life. Healthy food can help reduce PMS, boost fertility, make pregnancy and nursing easier, ease symptoms of menopause, and keep your bones strong. Whatever your age or situation, committing to a healthy, nutritious diet will help you look and feel your best and get the most out of life.
Maintaining a healthy weight is important piece of the puzzle to achieve good health. A healthy weight can be determined using the body mass index charts (see web source below). If you find you are overweight or obese, weight loss may be beneficial for you. Before you begin any weight loss efforts, consult with your medical provider and/or consult a registered dietitian to create a weight loss plan. If you are underweight, consult a medical provider to assess your weight status.
Women's nutrition is often eclipsed by maternal nutrition. There are important linkages between maternal nutrition and the health, cognitive development, and earning potential of future generations (1). However, with reduced childbearing and longer life spans, women's experiences extend beyond motherhood (2). Interventions and policies that target women solely as mothers fail to account for women before they conceive, after they no longer engage with programs targeting maternal–child health, as well as those who never have children (3, 4). A woman's nutrition should matter not (only) because of her reproductive potential, but because it is fundamental to her rights as a person and to her well-being and ability to thrive (5–7). With increasing attention to the nutritional needs of adolescent girls (8, 9), in addition to the rising prevalence of overweight, obesity, and noncommunicable disease affecting women later in life (10), it is becoming more imperative that interventions reach women at all life stages.
Nutrition-sensitive approaches are difficult to link to women's nutritional status (5, 102). This is due to limited measurement of benefits to program beneficiaries, families, households, and communities, limited timeframes to evaluate long-term impact, logistical and political realities that make implementation difficult, and different priorities of different stakeholders in multisectoral programs (102). Many nutrition-sensitive approaches, as will be described, thus focus on more distal measures of impact (e.g., coverage, knowledge) and not more proximal measures of women's nutritional status (e.g., BMI, anemia status, etc.).