Choline: Some studies link low choline levels to increased risk of neural tube defects. Recommended levels have been established for this nutrient, but it's easy to get enough in your diet. Eggs are an excellent source of choline, for example. “Eating a few eggs a week should give you all you need,” Frechman says. “Most people can eat the equivalent of an egg a day without worrying about cholesterol.” Other choline-rich food sources include milks, liver, and peanuts.
No matter how busy you are, eat lunch before 3 p.m., a Spanish study suggests. Researchers placed a group of women on a diet for 20 weeks; half ate lunch before 3 and half consumed their midday meal after 3. Although both groups’ daily caloric intake, time spent exercising and sleeping, and appetite hormone levels were the same, those who lunched late lost about 25 percent less weight than earlier eaters. Being European, lunch was the biggest meal of the day for these women, constituting 40 percent of their calories for the day, so consider slimming down dinner in addition to watching the clock.
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.
Sugar is a source of calories, not nutrients. Consuming too much sugar can lead to weight gain and tooth decay. Contrary to what many people think, there is no evidence linking high-sugar diets to hyperactivity or diabetes. However, high-fructose corn syrup, found in most processed foods, is linked with obesity, and obesity increases your risk for developing diabetes and other conditions.
Also limit the amount of cholesterol you consume. Cholesterol is a fat-like substance found in every cell of the body. It helps digest some fats, strengthen cell membranes and make hormones. But too much cholesterol can be dangerous: When blood cholesterol reaches high levels, it can build up on artery walls, increasing the risk of blood clots, heart attack and stroke. Although dietary cholesterol can contribute to heart disease, the greater risk comes from a diet high in saturated and trans fats.
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.
Jennifer Ann found her love for fitness 4 years ago through group fitness classes. She has always been passionate about helping others, so becoming a cycle instructor helps fuel that passion. A native of a small northeast Texas town, Jennifer Ann now lives in Bryan with her husband. She works at the Texas A&M Career Center and is a PhD student. When not at the gym or at work, you can find her enjoying a good Netflix binge, spending time with her loved ones, and attending Aggie sporting events! Jennifer is a certified cycling instructor through cycling fusion.
Omega-3s: These essential fatty acids, EPA and DHA, play many roles in the body, including building healthy brain and nerve cells. Some studies show that omega-3s, especially DHA, can help prevent preterm births. Even women who don't plan to have children should be sure to get plenty of omega-3s. These healthy oils have been shown to reduce the risk of heart disease, the number one killer of women.
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!
Good sources of iron include liver, kidneys, red meat, poultry, eggs, peas, legumes, dried fruits and dark, green leafy vegetables. Three ounces of cooked chicken liver contains 7.2 mg of iron; a cup of cooked spinach contains 6.4 mg. Your health care professional will probably recommend iron supplements during pregnancy (probably starting at 30 mg per day).
Most traditional fitness plans happen in predictable patterns that usually involve moving in two planes of motion—up and down or forward and backward—ignoring the third plane of motion, lateral. “Move your body in all directions to create the most fit, functional, and athletic physique,” Stokes says. If you're a runner, cyclist, or walker, remember to include movements such as jumping jacks, side shuffles, side lunges, and carioca (the grapevine-like move) in your warm-up or cool-down, she suggests.
Much of the sugar we eat is added to other foods, such as regular soft drinks, fruit drinks, puddings, ice cream and baked goods, to name just a few. Soft drinks and other sugary beverages are the No. 1 offenders in American diets. A 12-ounce can of regular soda contains 8 teaspoons of sugar, exceeding the daily maximum amount recommended for women.
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.
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.