What can I use for gaining weight? I'm 17 MOS out gastric bypass and I lost almost 40 pounds being sick on top of the 120 lb from my surgery 1/18/18 I'm barely over 100 I lost my c cup boobs pneumonia and I got powder from GNC yuck I paid 40$ a bag whey protein the one body builders use.

Protein shakes blended with banana, nuts, nut butters, oats and full fat milk/yogurt.

Also protein bars that are high calorie.

Good Luck ?

i What is your height, weight, BMI?

Try adding nuts, seeds, avo, full fat dairy products etc

Call your team and get a new diet plan to gain weight.

Adding weight usually means adding carbs