What should John focus on instead of giving up on weight control?

Focusing on a good eating and exercise plan is essential for sustainable weight control. This approach allows individuals like John to create a balanced lifestyle that incorporates healthy eating habits and regular physical activity. A structured plan enables someone to set realistic goals, make appropriate food choices, and establish a consistent exercise routine.

By developing a well-rounded eating and exercise plan, John is more likely to achieve his weight control goals in a healthy manner, as it promotes long-term changes rather than short-term fixes. Such a plan can also be tailored to fit his personal preferences and lifestyle, making it more enjoyable and easier to maintain over time.

In contrast, drastically reducing calories may lead to quick weight loss, but it can also be unsustainable and unhealthy, potentially causing nutritional deficiencies. Training for a marathon could be an admirable goal, but it's not necessarily suitable for everyone and may require a level of fitness that John does not currently possess. Furthermore, comparing himself to others may lead to feelings of inadequacy or discouragement, detracting from his motivation and self-esteem. Thus, concentrating on a structured eating and exercise plan provides a more constructive and achievable pathway for John to follow.