Too skinny

You might want to talk to your doctor first, but there are some supplements that you can buy in a place like GNC, and if you eat a lot of proteins and carbohydrates, you should put on more pounds.  However, I think it's a good idea to ask your doctor what the best way is for you to go about gaining weight and staying healthy.  Also seeing a nutritionist may be a good idea.

A food and nutrition specialist wrote an article Too Skinny?  How to Add Pounds Safely for the Mayo Clinic.  An excerpt of the article is below:

If you're trying to gain weight, eat a well-balanced diet that includes:

• Whole grains
• Vegetables and fruits
• Low-fat dairy products
• Lean protein sources, such as fish, poultry, beans and legumes

You'll likely need to add some fats and sugars to your diet for extra calories. When you add fats, choose unsaturated fats, such as nuts and oils. When adding sugars, select sweets that also provide nutrients, such as bran muffins, yogurt, fruit pies or juice, and granola bars.

Eating three meals a day plus between-meal snacks on a regular basis will add the calories you need to gain weight, as well as the balance and variety you need in your diet. You don't necessarily need protein drinks or shakes to gain weight. But these can provide extra calories if you feel like you're eating all that you can.

For the full article, visit the following link:  http://mayoclinic.com/health/underweight/AN00597