Don’t get caught up in the high-protein, low-carbohydrate diet hype. The best way to maintain a healthy weight is to consume the right number of calories (from healthful foods) for your age, size and lifestyle. Familiarize yourself with the calorie contents of foods and what “reasonable” portions look like. Aim for 30 minutes of moderate exercise (e.g., brisk walking) nearly every day. If you can’t devote 30 minutes all at once, break it up into 10-minute intervals.