My brother who watched some youtube videos about ayurveda where you can eat very less no food just peanuts etc. To get good health. He suddenly stopped eating food and intake very less calories and now he became very skinny where you can see bones clearly. When we say let's consult doctor he say no I saw so many reviews it won't work etc. And even now he say I got some disease if eat I get gastric etc. So I won't eat .is there any medicines which increase weight or any vitamins or proteins and calories tablets/liquid which are tasteless and colourless so he can gain at least minimum weight like a normal person.