If you want to be lighter and slimmer... The price is discomfort while you adjust to fewer calories and ditching the crap.
If you want to run stronger and faster ... The price is a few tough runs a week. Sprints, hills, long runs.
You have to pay a price. You know you're not gonna get any of it for free.
Work out what you want. Now... Be prepared to pay the price.
Some things that you want, might come with a hefty fee. Too hefty to pay.