Dietary Benefits

Many people who take dietary supplements are not lacking nutrients, according to recommendations, and little scientific evidence suggests that consuming more than the recommended amounts of some nutrients improves health. Taking dietary supplements to fill a dietary gap, however, is beneficial. Several populations may need dietary supplementation to meet their nutrient goals. The elderly, who require fewer calories as they age, still need to consume high levels of nutrients. One study found that many elderly people did not meet their nutrient needs from diet alone, and a study of the older-old found that dietary supplement users and nonusers did not get enough of some nutrients from diet alone. Recent data also suggest that most people, especially women and teenage girls, are not consuming adequate amounts of vitamin D. Experts say a varied, healthful diet is the best way to meet nutritional needs, and consumption of dietary supplements cannot make up for a poor diet. When taken by people who need them, however, dietary supplements can improve nutritional status.