If you do decide to diet, you still need to maintain good nutrition. You want to cut back on calories, not nutrients. And while you want to reduce fat, don't eliminate it entirely. Some studies suggest that older women who maintain a higher body-fat percentage are less likely to suffer from osteoporosis and other conditions associated with menopause. Fat cells also retain estrogen, which helps maintain the calcium in your bones. Younger women should be careful, too: a low body fat percentage can lead to infertility; below 17 percent may lead to missed periods, also known as amenorrhea.
Salads can be a great source of nutrients while being low in saturated fat and simple carbohydrates. The key word is "can." Too many times I see individuals pass up perfectly healthy sandwiches and entrees, opting instead for a salad drenched in dressing, bacon bits, and croutons. These items, loaded with fat and calories while scant on nutrients, will not only sabotage a diet but will often fail to make you full.
Most Americans get far more protein than they really need. In theory, that may not be wise. Like carbohydrates, protein provides 4 calories per gram, and excess calories from any source will be stored as body fat. Excess dietary protein increases calcium loss in the urine, perhaps raising the risk for osteoporosis ("thin bones," more a worry for women) and kidney stones (a particular worry for men).
The daily calcium recommendations are 1,000 milligrams a day for women under 50, and 1,500 milligrams a day for women 51 and older. Oddly enough, these are the same requirements for men, who are much less prone to osteoporosis than women. But the recommendation takes into account the fact that women are smaller than men. Thus the amount of daily calcium is greater for women on a proportional basis.
Notice that alcohol isn't included in a food group. If you drink alcohol, do so in moderation, up to one drink per day for women and two drinks per day for men. Alcohol offers little nutritional value, and when used in excess, can cause short-term health damage, such as distorted vision, judgment, hearing and coordination; emotional changes; bad breath; and hangovers. Long-term effects may include liver and stomach damage, vitamin deficiencies, impotence, heart and central nervous system damage and memory loss. Abuse can lead to alcohol poisoning, coma and death. Pregnant women should not drink at all because alcohol can harm the developing fetus and infant. According to the March of Dimes, more than 40,000 babies are born each year with alcohol-related damage. Even light and moderate drinking during pregnancy can hurt your baby. If you are breastfeeding, discuss drinking alcohol with your health care professional. After clearing it with your doctor, you may be able to have an occasional celebratory single, small alcoholic drink, but you should abstain from breastfeeding for two hours after that drink.
When women reach childbearing age, they need to eat enough folate (or folic acid) to help decrease the risk of birth defects. The requirement for women who are not pregnant is 400 micrograms (mcg) per day. Including adequate amounts of foods that naturally contain folate, such as citrus fruits, leafy greens, beans and peas will help increase your intake of this B vitamin. There also are many foods that are fortified with folic acid, such as breakfast cereals, some rices and breads. Eating a variety of foods is recommended to help meet nutrient needs, but a dietary supplement with folic acid also may be necessary. This is especially true for women who are pregnant or breast-feeding, since their daily need for folate is higher, 600 mcg and 500 mcg per day, respectively. Be sure to check with your physician or a registered dietitian nutritionist before taking any supplements., .
Nutrition is particularly important when you are pregnant. Weight gain during pregnancy is normal—and it's not just because of the growing fetus; your body is storing fat for lactation. The National Academy of Sciences/Institute of Medicine (NAS/IOM) has determined that a gain of 25 to 35 pounds is desirable. However, underweight women should gain about 28 to 40 pounds, and overweight women should gain at least 15 pounds. The IOM has not given a recommendation for an upper limit for obese women, but some experts cap it as low as 13 pounds. If you fit into this category, discuss how much weight you should gain with your health care professional. Remember that pregnancy isn't the time to diet. Caloric restriction during pregnancy has been associated with reduced birth weight, which can be dangerous to the baby.
Calcium: “Getting enough calcium is important for all ages, but it's particularly important during adolescence and early adulthood, when bones are absorbing calcium,” says Heather Schwartz, MS, RD, a medical nutrition therapist at Stanford University Hospital and Clinics. Calcium and vitamin D are often paired in fortified foods such as milk. The reason: The body needs D in order to absorb calcium.
If you usually head to the gym after work, take heed: Mental exhaustion can make you feel physically exhausted, even when you have plenty of energy, reports a Medicine & Science in Sports & Exercise study. When people played a brain-draining computer game before exercising, they reported a subsequent workout as being harder, yet their muscles showed the same activity as they did doing the same workout after an easy mental game. So if you think you can’t eke out those last 10 minutes on the rowing machine, remember: You can! [Tweet this motivation!]
Although canola oil appears to be good for the cardiovascular system, two Harvard studies have raised concerns that ALA might be bad for the prostate. In 1993, the Health Professionals Follow-up Study of 47,781 men published a major evaluation of dietary fat and prostate cancer. It found that saturated fat from animal sources such as red meat and whole-fat dairy products was linked to a 2.6-fold increase in prostate cancer. But the study also provided some disquieting news about ALA: Men who consumed the most ALA were 3.4 times more likely to be diagnosed with prostate cancer than those who had the lowest dietary intake.
Research has consistently shown that the elliptical, although easiest on joints, is worse than the treadmill, stationary bicycle, and rowing machine (not to mention activities such as swimming and intense hiking) when it comes to elevating heart rate and burning body fat. This is due to the fact that movement on these machines relies heavily on momentum and not resistance or the propelling of one's bodyweight. All these months of elliptical training has yielded mediocre results, and now you know why.
Research from Tufts University nutrition scientists shows that Americans are drinking so much soda and sweet drinks that they provide more daily calories than any other food. Obesity rates are higher for people consuming sweet drinks. Also watch for hidden sugar in the foods you eat. Sugar may appear as corn syrup, dextrose, fructose, fruit juice concentrate or malt syrup, among other forms, on package labels.