yes, it is possible to build your body without supplement, only the thing is you have to take care of your pre and post workout diet. consume atleast 40g – 50 grams of protein daily through natural foods like Egg white, chicken, Cheese, Brocooli and more. Cheese in high in proteins and fats and is good source. you can easily any where any type. If your are in India you can buy cheese online India on Awesome Dairy.