Iron: Essential for healthy blood cells, iron becomes especially important when girls begin to menstruate. With each period, a woman loses small amounts of iron. “About 10% of American women are iron deficient,” says Dorothy Klimis-Zacas, PhD, a professor of nutrition at the University of Maine and co-editor of Nutritional Concerns of Women (CRC Press, 2003). “About 5% have iron deficiency anemia.” Symptoms of low iron include fatigue, impaired immunity, and poor performance at school or work.
Women need more of this mineral because they lose an average of 15 to 20 milligrams of iron each month during menstruation. Without enough iron, iron deficiency anemia can develop and cause symptoms that include fatigue and headaches. After menopause, body iron generally increases. Therefore, iron deficiency in women older than 50 years of age may indicate blood loss from another source and should be checked by a physician.
Vinyasa and power may not be the only forms of yoga that will get you closer to that long, lean, limber look. Research presented at the 73rd Scientific Sessions of the American Diabetes Association found that restorative yoga—which focuses more on relaxing and stress-reducing movements rather than a challenging flow or balancing poses—burns more subcutaneous fat (the kind directly under your skin) than stretching does. By the end of the yearlong study, yogis who practiced at least once a month lost an average of about three pounds, nearly double the amount lost by those who only stretched. So if you don’t feel up for a more athletic yoga class, ease your way into a practice with a gentle one.
While I initially specialized in fitness and nutrition for men, a growing number of female friends, acquaintances, and potential clients have been soliciting my advice and services. Given women's markedly different fitness needs and goals, I began to incorporate my knowledge of nutrition and exercise to build regimens and routines for the fairer sex.
Fluids: Fluid needs increase as women age. The reason: Kidneys become less efficient at removing toxins. “Drinking more fluids helps kidneys do their job,” Schwartz says. “Unfortunately, thirst signals often become impaired with age, so people are less likely to drink enough water and other fluids.” Rather than fret about how many glasses to drink, Frechman says, check the color of your urine. "It should be clear or very pale colored. If it becomes darker, you need more fluid.”