If you lose weight suddenly or for unknown reasons, talk to your health care professional immediately. Unexplained weight loss may indicate a serious health condition. And even if it doesn't, simply being underweight is linked to menstrual irregularity, menstrual cessation (and sometimes, as a result, dental problems, such as erosion of the enamel and osteoporosis) and a higher risk of early death.
Here, too, body size is the main difference between the needs of males and females. Despite all the hype about high-protein diets, our protein requirements are really quite modest — only about a third of a gram per pound of body weight. For a 125-pound woman, that amounts to about 42 grams, for a 175-pound man, 58 grams. That's a tiny difference, just about half an ounce a day.
Home visits ↓ anemia, ↑ Hgb, ↑ food consumption, ↑ weight gain (underweight adolescents), NC mortality, ↓ fatigue ↓ anemia, ↑ serum folate, ↑ serum B-12, NC mortality, NC depression ↓ anemia, ↑ MN status (Hgb, ferritin, folate, B-12, zinc, riboflavin), ↑/NC serum retinol, ↓/NC night blindness, ↑ weight gain, NC maternal mortality, NC depression
Our review found that protein-energy supplementation was largely targeted to pregnant and lactating women (19, 86–88, 90, 91); however, there were some studies that evaluated the delivery of protein-energy supplementation to households (92, 93) and adolescents (46). The only studies we found that evaluated the impact of protein-energy supplementation in older, healthy women were hospital-based studies in high-income countries (96). Delivery platforms varied depending on the target audience. The majority of studies targeted pregnant women through antenatal care or through antenatal care–associated community-based programs. National programs targeting low-income families had broader reach, although they targeted households and not women specifically (92). Additional research is needed for how women might best be reached (94). For programs that provided provisions for women to take home, there was also limited information about how much was shared with other members of the household. School-based programs targeting adolescents could be an important venue to target interventions to adolescents in the future. However, children and adolescents not in school would be missed. Despite limited evidence of impacts of energy and protein supplementation on the health of women, supplementation might be an important complement to other interventions (e.g., nutrition education and counseling) to ensure that women have the resources needed to implement other interventions successfully. Indeed, many large-scale programs for protein-energy supplementation are often complemented with nutrition education and counseling (33).
Instinct may tell you to slow down when running in wintery conditions, but the secret to not slipping is actually to speed up and shorten your stride. Aim to have each foot strike the ground 90 times per minute, says Terry Chiplin, owner of Active at Altitude, a Colorado-based facility for endurance athletes. This high cadence helps ensure that each foot lands beneath the center of your weight rather than ahead of it, which can throw off your balance on slick terrain.
Poor nutrition may be one of the easiest conditions to self-diagnose. Look at the food pyramid and the suggested servings. Look at your diet. Are you getting the recommended daily amounts of fruits and vegetables? Enough calcium? Read the labels and compare what you eat to what you need. You may discover that even if your weight is ideal, you are not getting enough nutrition.
Oils. When cooking try to use oils from plants instead of solid fats like butter, margarine, or coconut oil. See this list of oils and fats to see how healthy each type of cooking oil and solid fat is. Most women eat too much solid fat through packaged foods like chips or salad dressing, and not enough healthy fats like olive oil or the type of fat in seafood.
Nutrition education interventions were often implemented in conjunction with other programs, and it was difficult to identify the effects of nutrition education alone. In addition, many studies reported on one-on-one counseling and group education, and it was not possible to differentiate the impact. The effects of nutrition education were often greater when combined with other resource-based interventions, such as micronutrient supplementation (31, 32), home gardening (28), food supplementation (33), and water provision (22). For nutrition education programs targeting mothers, those who were more educated or of higher socioeconomic status more often translated the intervention to nutritional outcomes (33). This suggests that the effectiveness of nutrition education might relate to individuals’ ability to access resources and implement information received.
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).
All of the identified studies focused on LNSs for pregnant and lactating women through antenatal care–based and –affiliated delivery platforms (97–101). These studies relied on antenatal care to recruit mothers but delivered the intervention through home visits. There was no evidence evaluating use of LNSs for women who were not pregnant or lactating. The majority of studies evaluating LNS interventions involved children with severe or moderate acute malnutrition. Although LNS supplementation could be an intervention to provide essential nutrients to women and girls, it is expensive. Filling energy gaps using local foods or other commodities can often be done at a lower cost (97). LNS supplementation should be limited to contexts in which cheaper, more sustainable solutions are not available.
When you do high-intensity interval training (and if you’re not, you should be!), follow a 2:1 work-to-rest ratio, such as sprinting one minute followed by 30 seconds of recovery. [Tweet this secret!] According to several studies, the most recent out of Bowling Green State University, this formula maximizes your workout results. The BGSU researchers also say to trust your body: Participants in the study set their pace for both running and recovery according to how they felt, and by doing so women worked at a higher percentage of their maximum heart rate and maximum oxygen consumption than the men did.
The guidelines also establish ranges (called acceptable macronutrient distribution ranges or AMDR) for fat, carbohydrates and protein, instead of exact percentages of calories or numbers of grams. The report maintains that since all three categories serve as sources of energy, they can, to some extent, substitute for one another in providing calories.
The best evidence that ALA can protect the heart comes from the Lyon Diet Heart Study, a randomized clinical trial in Europe. It tested the effects of an ALA-enriched Mediterranean diet in 605 patients with coronary artery disease. Over a four-year period, the high-ALA diet produced a 72% reduction in heart attacks and cardiac deaths and a 56% lower risk of dying from any cause (including cancer). The Mediterranean diet differed from the standard Western diet in many respects, but because it contained a special canola oil margarine, the greatest difference was in its ALA content, which was nearly eight times higher in the protective diet.
It's easy to get lost in a killer playlist or Friends rerun on the TV attached to the elliptical, but mindless exercise makes all your hard work forgettable—and you can forget about seeing results too. “There is a huge difference between going through the motions of an exercise and truly thinking, feeling, and engaging the key muscles,” says Kira Stokes, master instructor at the New York City location of indoor cycling studio Revolve. “Be conscious of and enjoy the sensation of your muscles contracting and the feelings of growing stronger and more powerful with each rep.”