When trying to adopt new healthy habits, it's important to work around other long-standing practices that could sabotage your efforts if overlooked. For example, if you are a morning person, working out in the a.m. is likely best, but if you’re a night person, exercise after work, says Tara Stiles, owner of Strala Yoga in New York City. [Tweet at Tara!]“Don't try to become one or the other if it's not natural to you. You're more likely to stick to it if you like the time of day and the whole experience.”
The tiny gender differences in minerals other than calcium and iron depend on body size. But while the dietary requirements for selenium fit this rule, men may benefit from supplements of about 200 micrograms a day, a level about four times above the RDA. That's because both a clinical trial and an observational study suggest that selenium may reduce the risk of prostate cancer. It's far from proven, but it's something for men to consider.
Not getting enough fiber can lead to constipation and can raise your risk for other health problems. Part of healthy eating is choosing fiber-rich foods, including beans, berries, and dark green leafy vegetables, every day. Fiber helps lower your risk for diseases that affect many women, such as heart disease, diabetes, irritable bowel syndrome, and colon cancer. Fiber also helps you feel full, so it can help you reach and maintain a healthy weight.
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.
Most experts recommend 1,300 mg of calcium a day for girls aged 9 through 19. Natural sources of calcium, such as low-fat dairy products, are the smartest choice, because they also contain vitamin D and protein, both required for calcium absorption. Milk, yogurt, and cheese contribute most of the calcium in our diets. Some vegetables are also good sources, including broccoli, kale, and Chinese cabbage. Many foods are supplemented with calcium, including some brands of orange juice and tofu. The daily intake for Vitamin D is 600 IU per day for most children and healthy adults.
The new guidelines encourage eating more nutrient-dense food and beverages. Many of us consume too many calories from solid fats, added sugar and refined grains. The guidelines promote a diet that emphasizes vegetables, fruits, whole grains, fat-free or low-fat dairy products, seafood, lean meat and poultry, eggs, beans and peas, and nuts and seeds.
Use MyPlate (PDF – 281 KB) as a guide to build a healthy diet. Think about filling your plate with foods from the five food groups — fruits, vegetables, grains, proteins, and dairy — at each meal. Snacks can be a good way to fill in fruits and whole grains you might have missed at meals. Most of us don’t need complicated calorie counting programs or special recipes for healthy eating.
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.
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.