healthy or not healthy is quite subjective no? are you happy with your current physique?

What vitamin water and supplement?
You do know right whey does a little to help in terms of macros and calorie count if you daily macro intake is not on point? 1 serving of whey has 120 to 150kcal, 20g to 25g of protein. If you are under weight, 1 pcs of kfc chicken breast has 350kcal, 30g of protein? Why drink when you can eat?

That is the solution to your under weight problem.

I have too much things that I want to eat bit I cannot eat abundance of them. We are in a different world.

My lunch just now is 1250kcal. I can squeeze in another cheese tart or egg tart but I did not because it will burst my calorie cap. How much is yours?

What is for your lunch of 1000kcal?

2500kcal a day? You have breakfast and dinner and supper and tea time. Second breakfast. Second tea time. Slot in here and there.

So are you eating 2500kcal a day and still not gaining? Or you do not know how much you eat everyday just main hentam eat and hope that things will change?

That is why you are not gaining. Apps doesn't make you gain. Eating does. Apss show that you have 700kcal to go. You leave it there. You expect the 700 to go into your body as digital data to make you gain?

You do know that whey is 120kcal per serving right? If you are seriously under eating, 4 scoops of whey is not going to help. If you are considering gainers, go drink milk, eat peanut butter.

And those people who eats 10k kcal is not eating like that everyday.