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| A) | It is useful only after pharmacologic therapy has failed. | ||
| B) | It should focus primarily on eliminating all carbohydrates. | ||
| C) | It is generally ineffective unless delivered in an inpatient setting. | ||
| D) | It is critical, but many clinicians may not be well informed about healthy eating principles. |
Nutritional advice is critical in the management of metabolic syndrome. Most clinicians, however, are not well informed about the principles of healthy eating. Healthcare professionals should learn the latest research and recommendations concerning carbohydrates, fats, and protein. With this information, one can provide useful advice to patients about healthy eating.
| A) | Avoiding all snacks | ||
| B) | Eliminating dietary fat | ||
| C) | Increasing protein to more than 50% of calories | ||
| D) | Reducing calorie intake |
One of the most important components relating to nutritional advice for patients who are overweight is reduction of calories. Patients should understand that the energy stored in food is measured in terms of calories. One calorie is the amount of energy required to raise the temperature of 1 gram of water 1°C. Most people's daily caloric requirement is less than 2,000 calories. As a quick rule of thumb, patients can calculate the number of daily calories they require by multiplying their current weight in pounds by 13 (or 15 if one is active). Patients who are overweight should reduce the number of consumed calories in order to lose weight. Reduction in calories is the most important dietary component of weight loss.
| A) | 100 to 200 calories per day. | ||
| B) | 300 to 500 calories per day. | ||
| C) | 500 to 750 calories per day. | ||
| D) | 1,000 calories per day. |
When recommending reduction in calories, specific guidelines should be kept in mind. Patients with a BMI between 27 and 35 should reduce their total calorie intake by 300–500 daily. Patients with a BMI greater than 35 should reduce their total calories by 500–750 daily [7]. This reduction will produce the recommended weight loss of 1–2 pounds per week in most patients.
| A) | Portion control | ||
| B) | Eliminating all grains | ||
| C) | Eating one meal per day | ||
| D) | Complete avoidance of dairy |
Portion control is also a key to weight loss. Portion control has been shown to produce the greatest weight loss in women over a 24-month period, more than reduced dietary fat consumption, increased fruit and vegetable consumption, or increased physical activity [8]. Thirty-eight percent of obese patients who consistently practiced food portion control lost 5% or more of their baseline weight, while 33% of patients who did not consistently practice portion control gained 5% or more of their baseline weight. A 2006 study by the same researchers involving overweight and obese men showed that using controlled portions of food led to more weight loss than a self-selected diet based on the food guide pyramid [9]. (Note: The historical food guide pyramid is considered obsolete.)
| A) | 10% to 20% | ||
| B) | 20% to 35% | ||
| C) | 45% to 65% | ||
| D) | 70% to 85% |
Since the 1990s, the Institute of Medicine (IOM) has issued a series of reports that suggest dietary reference values for intake of nutrients. One of these reports, updated in 2005, establishes the Dietary Reference Intakes (DRI) for energy, carbohydrates, fiber, fat, fatty acids, cholesterol, protein, and amino acids. The following ranges are recommended in the 2005 report for percentage of daily caloric intake [11]:
Carbohydrates: 45% to 65%
Sugars: No more than 25%
Fats: 20% to 35%
Protein: 10% to 35%
Fiber: Men younger than 50 years of age should receive 38 g of fiber; women younger than 50 years of age need 25 g. Men older than 50 years of age should receive 30 g of fiber; women older than 50 years require 21 g.
| A) | They are superior to lifestyle-based healthy eating plans. | ||
| B) | They are appropriate only for patients with normal BMI. | ||
| C) | They are recommended because they simplify patient decision-making. | ||
| D) | They often exclude certain foods and may result in nutritional deficiencies. |
With all the publicity regarding various diets, patients should be advised that it is as important to include certain foods as it is to exclude others. "Fad diets" typically exclude certain foods and therefore often have nutritional deficiencies. For example, high-fat, low-carbohydrate diets are low in vitamin E, vitamin A, thiamin, folate, calcium, magnesium, and zinc. Low-fat diets are typically deficient in vitamin B12. Additionally, a meta-analysis and systematic review of long-term studies of low-fat, high-protein diets found no net benefit on outcome markers of obesity, cardiovascular disease, or glycemic control [12].
| A) | Focusing on healthy eating | ||
| B) | Advising patients to avoid all dietary fat | ||
| C) | Telling patients to follow the most popular diet | ||
| D) | Recommending unrestricted intermittent fasting |
Instead of counseling patients about specific diets, it is more useful to focus on healthy eating.
| A) | Replace all protein foods with supplements. | ||
| B) | Emphasize highly processed foods if they are low in calories. | ||
| C) | Avoid fruits because they contain naturally occurring sugars. | ||
| D) | Choose fiber-rich whole grains and reduce refined grains and highly processed carbohydrate sources. |
The 2025–2030 Dietary Guidelines encourage Americans to adopt eating patterns centered on nutrient-dense foods, including [10]:
Eating the appropriate amount of food and calories based on age, sex, body size, and physical activity level.
Prioritizing high-quality protein foods at meals, including seafood, poultry, eggs, lean meats, beans, peas, lentils, nuts, seeds, and soy products.
Consuming a variety of vegetables and fruits throughout the day, with an emphasis on whole foods rather than juice.
Including dairy foods as part of a healthy dietary pattern.
Choosing fiber-rich whole grains and substantially reducing refined grains and other highly processed carbohydrate sources.
Incorporating healthy fats from foods such as fish, nuts, seeds, olives, avocados, and plant oils.
Limiting highly processed foods, added sugars, refined carbohydrates, and sugar-sweetened beverages.
Limiting alcohol consumption.
| A) | Sodium intake should exceed 3,000 mg per day for all adults. | ||
| B) | Added sugars should provide at least 25% of total daily calories. | ||
| C) | Alcohol intake should be encouraged for cardiovascular protection. | ||
| D) | Saturated fat intake should generally remain below 10% of total daily calories. |
The following quantitative recommendations remain important components of a healthy dietary pattern [10]:
Saturated fat intake should generally remain below 10% of total daily calories.
Sodium intake for individuals 14 years of age and older should be less than 2,300 mg per day.
Alcohol consumption should be limited, and certain populations, including pregnant individuals and those with certain medical conditions, should avoid alcohol entirely.
Added sugars should be minimized, and sugar-sweetened beverages should be avoided whenever possible.
| A) | Avoid breakfast to reduce total daily calories. | ||
| B) | Increase intake of sugary beverages to prevent hunger. | ||
| C) | Begin with a highly restrictive diet that eliminates all snacks immediately. | ||
| D) | Track current calorie intake and aim for no more than 2,000 calories per day. |
Currently, Mr. G snacks on sugary treats throughout the day, as he does not take time to eat breakfast and frequently goes without lunch. By the time he eats dinner, relatively late in the evening, he is famished and tends to overeat. Mr. G has very little nutritional information about the food he eats. Either the physician can provide some basic dietary information, or the patient can be referred to a dietitian. The goals of dietary counseling for Mr. G would be:
Mr. G first should understand roughly how many calories he is consuming per day. His goal should be to consume no more than 2,000 calories per day. He may wish to keep a food log for two to three days to get a better idea of exactly how much he is eating. This log could be reviewed at the next visit.
He should divide the recommended calories over at least three meals. Eating breakfast should be emphasized, as there is data that supports the premise that eating breakfast helps to maintain one's weight rather than cause weight gain.
In addition, he should minimize snacking on food high in sugar, sodium, and added fat and substitute these for nutrient-dense food/beverage choices. Because he consumes a fair amount of soda, simply eliminating one can of soda per day could lead to a 5- to 10-pound weight loss over the course of a year. The emphasis should be on gradual lifestyle changes that are sustainable and acceptable to Mr. G.