How can I gain some healthy weight?

I calculated my BMI by hand and with two online calculators, and all the results point to underweight. So I'm looking for a way to gain healthy weight, probably about five to ten pounds. Is there a waay to do this without messing up my health?For those who have seen a previous question of mine asking if 112 pounds was healthy, I lost about five or seven pounds since then.Thanks for any help.

How to Lose Weight Fast at the Gym

Recommended Answer:

Good weight gaining combinations are bread, cereals, pasta, rice, potatoes or sweet potatoes combined with meat, poultry, eggs, cheese, nuts or sea food. Peanut butter sandwiches and cheese sandwiches are good weight gaining combinations. The protein in the above combinations will help to gain extra muscles.

Other Answers:

• Eat food with lots of protein (meat, beans, etc.) muscle weighs more than fat
• Eat more but eat right then workout you can gain muscle by that.