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.
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.
Women, as we age, are also more susceptible to the breakdown of our bones, which may result in osteoporosis over time. Genetically, women have a particularly high risk of osteoporosis compared to men, so it’s recommended that women monitor their calcium intake to be sure they’re getting enough. Weight training is another great way (and my favorite!) to build bone density, which is another great reason you should hit the weights!
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.
While women tend to need fewer calories than men, our requirements for certain vitamins and minerals are much higher. Hormonal changes associated with menstruation, child-bearing, and menopause mean that women have a higher risk of anemia, weakened bones, and osteoporosis, requiring a higher intake of nutrients such as iron, calcium, magnesium, vitamin D, and vitamin B9 (folate).
Focus on the long term. Diets fail when people fall back into poor eating habits; maintaining weight loss over the long term is exceedingly difficult. Most people regain the weight they've lost. In fact, some studies indicate that 90 to 95 percent of all dieters regain some or all of the weight originally lost within five years. Your program should include plans for ongoing weight maintenance, involving diet, exercise and a behavioral component. While there are some physical reasons for obesity, there are also behavioral reasons for excessive eating. For example, many women use food as a source of comfort (perhaps to deal with stress). For these women, a weight loss program with a behavioral component will offer alternatives to replace food in this role.
Stress can wreak serious havoc on our bodies, but we actually need stress to a certain extent. For example, if we were running from a bear, we would need our stress response to kick in full force. We would start breathing faster, sending more oxygen to muscles to fuel movement, then our bodies would release stress hormones from our adrenal glands (cortisol) to heighten our focus by tapping into energy reserves for fuel so we could flee the danger. Cortisol isn’t always the bad guy, but when this response is high and chronic it tells your body to eat more than it “needs” because it’s thinking much more about survival, not stress over a work deadline or relationship woe. Cortisol is needed, but high levels of cortisol over time will contribute to those mentioned health impacts, especially abdominal weight gain! The problem is when we’re actually not in danger and our bodies are living in this state chronically. THIS is the magic piece of the puzzle – learning how we can turn off that heightened stress response when it’s not needed.
However, 30% is still a lot of fat for one serving, so considered absolute values like how many grams of fat, carbohydrates, protein, etc. are consumed instead of relative values like "50% less fat." Additionally, reaching fitness goals is largely about calorie intake. More body fat and unwanted weight will be gained by eating 500 calories of a low-fat item than by eating 100 calories of a high-fat item, so keep this in mind.