You can take all the weight gainer in the world, and it would do nothing for you if you do not exercise. I know how you feel, I used to be 183cm and 56kg, but not anymore. I'm now at 188cm and 75kg, and I did not use a single weight gainer product.

Read up on the Rippetoes workout program, get a gym membership.

Read up about nutrition, how much to eat, what to eat, and when to eat.

Together with some dedicated hard work, you will start putting on weight.

NO 'just work out' will not do.

I said go to the gym and lift weights, that puts on MUSCLE.

Hiking and jogging makes you lose fat, in order words, MAKE YOU LOSE WEIGHT.

So do you think that will help?

Look, you don't have to train twice a day for 2 hours each time, 6 times a day. All you need is 3 hours a week. If you can't devote 3 hours a week out of 168 hours a week that you have towards achieving your goal, then perhaps it's not meant for you.

And you need 'products to support' IF YOU ARE LIFTING WEIGHTS IN THE FIRST PLACE. You see the word support. That means it doesn't stand by itself. You use it to support your nutrition needs that are caused by intensive weight training.

I'm actually at 188cm and 80kg now, just gained quite a lot of mass recently.

Keep in mind that your weight gainer is not to replace your meals, but it's just a supplement.

I suggest you read ken86's article about diet, that helped me a lot, especially the protein shake recipes.

I never enrolled into any personal training programs. It's usually very expensive, at FF it's like rm130+ per hour, and most personal trainers will just take you for a ride.

If you're a beginner you should get on the Rippetoes program. PM me your email address and I'll send you the ebook. Read that book, follow the program, get maximum gains from it. It works.

You can start by doing some bodyweight exercises at home. Bodyweight squats, lunges, mountain climbers, pushups, reverse crunches, planks, pullups, pistol squats etc. Bodyweight exercises are a good way to start, if you can't control your own bodyweight, how are you going to control external weights?