Hello,good night. i'm 17 years old 170cm and 52 kg. and i want to gain weigh... thank you:)?

Weight gain: One simple way to gain weight is to increase your calories per day. If you want to gain muscle mass, you need to perform resistance training. Make sure you eat a proper balanced diet of fruits and vegetables and lean proteins. Don't waste your money on weight gainers from the store.

Eat healthy high: calorie foods. Eat 6 meals/day. Work on strength training to build large muscle groups. Workout w heavier weights w fewer repetitions. Sleep at least 8 to 9 hrs/night. Hydrate well w water. Foods to help w healthy weight gain: almonds, cashews, pecans, sunflower seeds, flax seeds, walnuts, hummus, Avocados, granola, trail mix, dried fruits, extra virgin olive oil, canola oil, protein shakes, >