Carlos is a 15-year-old male who plays on his school's football team and runs track. If he continues with this lifestyle until he graduates from high school in a few years, he should completely eliminate sugar from his diet to give him more energy for playing sports

eat enough calories per day to support his activity level, including plenty of calcium since he will continue growing at this time

make sure he is lowering his daily calorie intake so he does not gain weight during his teen years

only eat lunch and dinner to give him enough calories during the afternoon when he is playing sports