Are there any health precautions I should note of before doing this? At how many calories would be too much to add to my daily intake? For my overall standings I'm 5'5, 105 pounds and 18 years old. I know. Fuck me. I never cared about my weight before as being skinny was never emphasized in my environment. It was only said if you were fat that you should change, never if you were skinny. I'm looking to gain body fat instead of muscle. I'm extremely skinny and see no point to working out until I have an actual body to work out and gain muscle on. Say whatever you want but I'm not going to vigorously work out until I gain at least 50 pounds. I'm that skinny.