Hey there, I am thin than what I should be. My BMI is 20 and I look very lean from my upper body. I reduce very quickly if I diet, more workout or if I increase intake of Green Tea/ Hot water. I want to increase my weight naturally in 3 months. Someone suggested to take raw egg and milk, empty stomach daily. Would like to know the ways I can increase it naturally. Also I eat mostly out or food made by cook, there is not much fat in my food. I eat sweets on a higher side, and I practice yoga three days a week.