How i increase my body weight?
I expect the 10kg you’re looking to gain is for a practical purpose and not merely just to get fatter. In that case you’re looking to add muscle and not fat (as muscle weighs more anyway). So you need to eat much more muscle-building foods. Check out the following links as a guide: http://www.menshealth.co.uk/Fitness-&-mu… Just remember, that if you’re going to be ingesting this high-protien diet, then your body will need to “use” the food appropriately. So it should be combined with the appropriate exercise plan, specifically designed to help you “bulk up”. Using weights (say for shoulders and chest), that means less reps but with heavier weights. The inverse will lead to toning or shaping of your muscles and not merely building. If you combine the two, you’ll get stunning results but over a longer period (but it will also last longer). Catch
You can start a healthy diet that will bring you some calories without much harm, but be careful because a food that might not affect one aspect of your health might affect another. However if you are planning on gaining 10 kg in 4 months that should not be a problem, it would be different if you tried to gain that weight in a really short period of time like 1-2 weeks. So basically it’s what everyone else said. Try to eat healthy foods that will bring you some calories. Another option is gaining weight by gaining muscle, however that takes time and good work ethic.