A nurse is providing follow-up care with a client who participated in a class about improving bone health. Which of the following client statements should the nurse identify as an understanding of the teaching?

Choice A reason: Reducing caloric intake by 200 calories a day may not be enough to achieve significant weight loss for a client who is obese. The recommended daily calorie deficit for weight loss is 500 to 750 calories, which can result in a loss of 1 to 1.5 pounds per week¹.

Choice B reason: Losing 5 percent of body weight can improve glycemic control and reduce the need for glucose-lowering medications for a client who has type 2 diabetes. Studies have shown that weight loss of 5 to 10 percent can lower HbA1c levels by 0.5 to 1.0 percentage points².

Choice C reason: Exercising for 30 minutes three times a week may not be sufficient to lose 1 pound per week. The recommended amount of physical activity for weight loss is at least 150 minutes of moderate-intensity aerobic exercise per week, plus resistance training at least twice a week³.

Choice D reason: Drinking 16 ounces of apple juice is not advisable if the blood glucose level drops during exercise, as it can cause hyperglycemia. Apple juice contains about 48 grams of carbohydrates, which is equivalent to four servings of glucose tablets⁴. The recommended treatment for hypoglycemia is to consume 15 to 20 grams of fast-acting carbohydrates, such as glucose tablets, gel, or juice, and recheck the blood glucose level after 15 minutes⁵.

Choice C reason: This statement shows that the client has understood the importance of vitamin D and calcium for bone health. Fortified milk, fatty fish, and cheese are good sources of both nutrients, which help to maintain bone density and prevent osteoporosis.

Choice A reason: This statement is incorrect, as vitamin A supplementation can have adverse effects on bone health. Excessive intake of vitamin A can increase the risk of fractures and reduce bone mineral density.

Choice B reason: This statement is partially correct, as calcium supplementation can help to meet the daily requirement of calcium for bone health. However, calcium alone is not enough, as vitamin D is also needed to facilitate the absorption of calcium and prevent its loss from the bones.

Choice D reason: This statement is irrelevant, as none of the foods mentioned are particularly beneficial for bone health. Orange juice, lean meats, and egg whites are good sources of vitamin C, protein, and biotin, respectively, but they do not provide significant amounts of vitamin D or calcium.