Thanx to anyone who gives me a legit answer 1) does reducing salt help you lose weight? 2) does sweating more mean buring more calories? Like if you wear a sweater instead of a t-shirt or wear those suits that make you sweat. 3) When doing cardio they say do 30 minutes. Does that mean non stop, or are u supposed to take like 2-3 minutes to rest? and finally... 4) are negative calories foods real? does it really take more calories to digest them than those foods contain? again THANX a bunch