Looking to loose about 40 lbs.- Healthy.?

No don lose 40 or 30 Kay? If you lose 40 you'd weigh 100 pounds and that's as much as a 11 year old 30 pounds as much as an average 13 year old so lose 15 or 20 pounds then you'll look skinny and average trust me Kay? You'll just look really bad if your uber skinny.