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.
Schools (and universities) ↓/NC anemia, ↓ Fe-deficiency anemia, ↑/NC MN status [Hgb (↑ if anemic), ferritin, zinc, retinol], ↑ MN status [folate, riboflavin, 25(OH)D, iodine], ↓ PTH, ↓ goiter prevalence, ↓ MN deficiency (vitamin A, B-12, C), ↑ bone mineral accretion, ↑/NC weight gain/BMI, ↑ MUAC, ↑ gut inflammation, ↓/NC respiratory symptoms and diarrheal morbidity, ↑ fitness (for Fe-deficient subjects), ↑/NC short-term cognitive function ↑ Hgb (↑ if anemic), ↑ serum ferritin, ↑ total body Fe, ↑ urinary iodine concentration, ↑ serum zinc, ↑ aerobic power, NC net energetic efficiency
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.
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.
Carbohydrates should provide 45%–65% of your daily calories. Most of those calories should come from the complex carbohydrates in high-fiber and unrefined foods, such as bran cereal and other whole-grain products, brown rice, beans and other legumes, and many fruits and vegetables. These carbohydrates are digested and absorbed slowly, so they raise the blood sugar gradually and don't trigger a large release of insulin. People who eat lots of these foods have higher HDL ("good") cholesterol levels and a lower risk of obesity, diabetes, and heart disease. A good amount of soluble fiber in the diet lowers LDL ("bad") cholesterol, and high-fiber diets reduce the risk of intestinal disorders ranging from constipation and diverticulosis to hemorrhoids. Some studies have shown that fiber may help reduce the risk of colon cancer. Men need more fiber than women: 38 vs. 25 grams a day before the age of 50 and 30 vs. 21 grams a day thereafter.
Second, the scope of nutrition-specific and nutrition-sensitive approaches was largely focused on undernutrition. There were major research and programming gaps in studies targeting overweight, obesity, and noncommunicable disease. In our review, the interventions addressing overweight, obesity, and noncommunicable disease were limited to nutrition education and integrated healthcare. However, overweight and obesity were identified as potential concerns for interventions targeting undernutrition, including food supplementation, and in-kind and cash transfers. This might be a result of the types of interventions that were evaluated, but also speaks to the need to broaden the scope of nutrition interventions that are commonly assessed (5, 13, 14) to explicitly address overweight, obesity, and noncommunicable disease as nutrition outcomes, and not just as unintended consequences. Globally, there is limited evidence of large-scale interventions that effectively prevent, treat, or correctly classify adiposity-related noncommunicable diseases, and this is a growing area of concern around the world (208). Future evaluations of nutrition interventions might also include interventions that influence women's time and physical environment, and that encourage physical activity or change in access to and affordability of certain foods, as these might also influence overweight, obesity, and noncommunicable disease outcomes for women.
The delivery of nutrition education reached women across all life stages and through many platforms. Many nutrition education studies that targeted pregnant and lactating mothers reported on women's outcomes, but the primary focus of many of these studies was child health outcomes (13, 14, 19, 21, 24, 28); few studies focused on dietary outcomes and behaviors of pregnant and lactating women themselves (17, 20, 23). There were some studies evaluating the impact of nutrition education on the practices and outcomes of school-age children and adolescent girls (15, 18, 27, 29, 34), as well as older women (16, 22, 25, 30). Many of the nutrition education interventions were clinic-based (17–20, 23, 24). However, nutrition education was also delivered through community-based programs, including home visits (16, 21), community centers (15, 16, 20, 21), worksites (25), and schools (25, 27, 30, 34).