A nurse is instructing a group of clients regarding nutrition. Which of the following is a good source of omega-3 fatty acids that the nurse should include in the teaching?

(a) "Your metabolism is slowing down.":

Hypothyroidism leads to a decrease in the production of thyroid hormones, which are critical in regulating metabolism. With lower levels of these hormones, the body's metabolic rate decreases, resulting in reduced calorie burning and subsequent weight gain. This explanation directly addresses the underlying cause of weight gain in hypothyroidism.

(b) "You should be exercising for longer periods of time.":

While exercise is beneficial for overall health and can help manage weight, it does not directly address the reason for weight gain in hypothyroidism. The primary issue is the slowed metabolism due to thyroid hormone deficiency, not a lack of exercise.

(c) "You could be making healthier food choices.":

Although diet plays a role in weight management, this response does not explain the root cause of weight gain in hypothyroidism. The condition itself slows metabolism, leading to weight gain even if dietary habits remain unchanged.

(d) "You are retaining fluid.":

Fluid retention can occur in hypothyroidism but is not the primary reason for weight gain in this condition. The main cause is a decreased metabolic rate, which leads to the accumulation of body fat. Fluid retention might contribute to some weight gain, but it is not the best explanation in this context.

A) "Let's discuss your risk factors for heart disease.":

A waist circumference of 43 inches (109 cm) in a male is considered elevated and indicates central obesity, which is a significant risk factor for cardiovascular diseases, including heart disease, hypertension, and type 2 diabetes. Addressing this finding by discussing risk factors for heart disease is appropriate and necessary for preventive healthcare.

B) "We should review the amount of protein in your diet.":

While diet is important, protein intake is not directly related to waist circumference. The primary concern with a large waist circumference is the associated risk of metabolic and cardiovascular conditions, rather than specific macronutrient consumption.

C) "Waist circumference can vary over the course of the day.":

Though there can be minor variations in waist circumference throughout the day due to factors like fluid retention or meals, a measurement of 43 inches is significantly above the threshold indicating central obesity. This warrants a discussion about health risks rather than focusing on daily fluctuations.

D) "You probably have a vitamin deficiency.":

Vitamin deficiencies are not directly indicated by waist circumference measurements. This statement is not appropriate given the finding, as the primary concern with a large waist circumference is its association with increased risk of chronic diseases rather than nutrient deficiencies.