text: A "little tricky" is putting it mildly, try a little impossible!\n\nLosing 15 lbs in a month is totally crazy (a FEW pounds!!??).   Funny how he waited until the last minute to decide on this.\n\nA pound of fat contains 3500 calories, so if you lost 1/2 a pound a day you would need to use 1750 calories a day, or the equivalent of running 20 miles.   That also assumes you don't take in more than your basal metabolic rate (very lttle food).  A goal of 5 lbs might be more reasonable.\n\nAnyway, try aerobic exercise (running, biking) to burn the calories and some weight work to put on some muscle.\n\nOh...and yoga for losing weight and putting on muscle.  Not likely!