I'm 14 yeras old, 5'10" and 160 pounds. I need to gain weight for football this year. I am a running back/linebacker. I am slightly good in muscle mass, but I'm quickly getting frailer looking since I am growing so fast.My diet consists of many fruits and vegetables only, and water only. For protein, I consume a protein shake two times a day, morning and night. For even more vitamins and minerals, I have a vitamin suppliment morning and night. For exercise I do body weight exercises since I don't have good equipment. I do pushups, sit ups, chin ups, squats, jumping jacks (for my calves) and run for cardio and more leg strenghth. I do all these every night for about an hour. I feel I need to workout more often and longer. True? I also think I need some different foods, but I'm afraid I will gain too much fat weight, that's why I only et fruits and vegetables, and the protein because I NEED the muscle. Please help. Thanks.