Final answer:
George's daily calorie needs for maintaining his weight can be calculated using the 30 kcal/kg body weight guideline. To lose one pound per week, he should eat 500 fewer calories per day than his weight maintenance calorie needs. A balanced approach with diet, exercise, and lifestyle changes is essential for long-term weight loss success.
Step-by-step explanation:
To calculate George's daily calorie needs for maintaining his weight, we would require his body weight in kilograms. Since we do not have George's weight, let's assume he weighs 70 kg. Using the 30 kcal/kg of body weight guideline, George would need 2100 kcal per day to maintain his weight (70 kg x 30 kcal/kg = 2100 kcal). To lose one pound per week, George would need to create a calorie deficit of 3500 calories over the course of a week because the equivalent caloric value of one pound of body fat is approximately 3500 calories. This equates to a daily deficit of 500 calories (3500 calories ÷ 7 days = 500 calories/day). Therefore, to lose one pound per week, George should be eating 1600 calories per day (2100 kcal - 500 kcal = 1600 kcal).
Remember, the calorie intake for weight loss should not only be about the number of calories but also the nutritional quality of the foods consumed. A combination of dietary changes, increased physical activity, and behavior changes is the most effective method for long-term weight loss. Following a healthy-eating guideline and considering physical activities that George can incorporate into his lifestyle are important factors for successful weight management.