You only eat breakfast?

Calculate how much cal you need in order to gain. Supplements is not necessary eh, but if you got extra money why not. Go to gym for God sake, with a few of dumbbell, i wonder how much it could be use for. Lastly, under the bodybuilding section, there is food/workout/training thread, you can go there for a read, useful as a reference.

I know but I just want to point out that in bodybuilding, everything must be done detail and no half-asses. No half-asses during workout, no half-asses on your diet. You want to be big, then you need to be very discipline about it. Trust me. I've been there and wasting 9 months without any significant gains are demotivating.

You get it? Good. Now to answer your question.

You don't need to have to rely on supplements in order to grow your muscles. You don't need whey and mass gainers. They are meant to supplement. What you need is to:

1. Read a lot. Bodybuilding is a combination of art and sciences and you need a hell of information if you want to achieve your goal. Yeah, maybe it seems that I am a bit dramatic here but if you think that sit ups, crunches, reverse crunches can get you a six pack, then you are wrong.

2. Find a suitable workout for beginner and according to your goal and stick to them. Think of this as a lesson plan in school. You learn simple math before you go to advance then calculus right? Same as the workout. Start with beginner routine and follow them until you feel like you need more challenge or you have different goals.

3. Diet is one of the three important aspects in bodybuilding. If you understand about diet, then you will know that consuming mass gainers like what you want to do in the first place is a massive waste of money. Without proper diet, you will have a very minimal gain on your workout and it will affect your goal. You want to bulk (increase muscle mass)? Find a bulking diet. You want to cut? Find a cutting diet.

4. Having enough rest is important. Remember, muscles are made outside the gym.

5. Read a lot.