What are meal-planning strategies for underweight people who desire to gain weight?

An exact meal-plan should be worked out with a registered doctor or nutritionist. Generally, the plan will enocourage meals and a few snacks throughout the day that consist of high-quality grains, dairy, protein, fruits and vegetables. The key is for a healthy balance and proper nutrition. If the goal is to gain weight, then calorie-dense foods (nuts, seeds, starches, higher fat dairy, etc.) may be added in or a weight-gain supplement (usually a drink) will be given.