I had gastric bypass surgery two years ago I lost 150 pounds I weigh 145 right now I would like to gain at least 25 pounds back but for some reason I can’t and I eat and drink everything!!!! I even take in over 100 g of protein every day

What do I do

Try healthy fats like avocado and nuts. Full fat dairy products. Good luck!

Make sure that whatever you do, you eat healthy, even if it's more of it.

I had gastric bypass surgery two years ago I lost 150 pounds I weigh 145 right now I would like to gain at least 25 pounds back but for some reason I can’t and I eat and drink everything!!!! I even take in over 100 g of Protein every day

What do I do

You can increase your calories by eating several meals. Talk with your dietitian for a new food plan. Ask about carbohydrates and healthy fats.

Also, see if your doc can get you into a trainer/or PT who specializes in bariatrics and understands the metric of how to add muscle safely without using stacking enhancers etc. Cuz what you probably really want is not "weight"--you don't want fat. You want muscle.

@BigViffer might also pop in and give you advice on how or where to go to increase muscle.

Congrats on your weight loss btw!!!

Believe it or not, gaining weight is accomplished the same way as losing it. Counting calories and tracking macros. You say you eat 100 grams of protein a day, that will only account for roughly 400 calories; what makes up the rest of your daily intake? I've switched over to higher fat foods like nuts, seeds, and real cream in my coffee. I make a point to get my carbs in too. If you are only eating dense protein, not all of that will go towards tissue repair, you body will have to use some of it for fuel.

It takes a while of experimenting to find the mix that works for you, but you need to find how much carbs and fats to take in for fuel and then protein for repair and muscle mass gain. I was able to put on about 20 lbs of muscle after hitting goal, 198 back up to 225. There is a little more fat on my than before, but it is where it needs to be for lifting and my reserves. It comes off pretty rapidly when I stop working out and eating for fuel.

Do you suffer from no hunger? Do you get full to easily?

At this point, I can tell when it's head hunger and boredom versus the need for sustenance. When I am head hungry, I just drink or try to get busy with something.

You can tell when it's head hunger when you have taken in enough protein and carbs to meet your macros, yet you want to eat.