How much should a 74 year old man 5'8''?

The ideal weight for a 74-year-old man who is 5'8'' would depend on factors such as muscle mass and overall health. A general guideline is a body mass index (BMI) between 18.5 and 24.9, which for this individual would equate to a weight range of approximately 140-170 pounds. However, it is important to consult with a healthcare provider for personalized recommendations.